Security Target: 20080306_c0126_est

Security Target: 20080306_c0126_est
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bizhub C253 / bizhub C203 / ineo 253 / ineo 203 Control Software, Security Target
bizhub C253 / bizhub C203 / ineo+ 253 / ineo+ 203
Control Software
Security Target
This document is a translation of the evaluated and certified security target
written in Japanese
Version:1.03
Issued on:September 21, 2007
Created by:KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
Copyright © 2007 KONICA MINOLTA BUSINESS TECHNOLOGIES, INC., All Rights Reserved.
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<Revision History>
Date
2007/03/19
Ver.
1.00
Division
Development
Div. 12
Approved
Checked
Created
Hirota
Nakajima
Yoshida
Initial Version
Revision
2007/08/02
1.01
Development
Div. 12
Hirota
Nakajima
Yoshida
Change CC version
2007/09/03
1.02
Hirota
Nakajima
Yoshida
Deal with typos.
2007/09/21
1.03
Development
Div. 12
Development
Div. 12
Hirota
Nakajima
Yoshida
Change TOE version
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―【 Contents 】――――――――――――――――――――――――――――――――
1.
ST Introduction ........................................................................................................................ 6
1.1. ST Identification .............................................................................................................................6
1.2. TOE Identification ..........................................................................................................................6
1.3. CC Conformance Claim.................................................................................................................6
1.4. ST Overview ..................................................................................................................................7
2. TOE Description ....................................................................................................................... 8
2.1. TOE Type.......................................................................................................................................8
2.2. Environment for the usage of MFP ................................................................................................8
2.3. Operation Environment of the TOE................................................................................................9
2.4. Role of the TOE User ..................................................................................................................10
2.5. Functions provided by the TOE ...................................................................................................11
2.5.1. Basic Function ................................................................................................................................................ 11
2.5.2. User Box Function .......................................................................................................................................... 12
2.5.3. User Authentication Function.......................................................................................................................... 12
2.5.4. Account Authentication Function .................................................................................................................... 13
2.5.5. Administrator Function.................................................................................................................................... 13
2.5.6. Service Engineer Function ............................................................................................................................. 15
2.5.7. Other Functions .............................................................................................................................................. 15
2.5.8. Enhanced Security Function........................................................................................................................... 16
3.
TOE Security Environment ................................................................................................... 18
3.1. Protected Assets..........................................................................................................................18
3.2. Assumptions ................................................................................................................................19
3.3. Threats.........................................................................................................................................19
3.4. Organizational Security Policies ..................................................................................................21
4. Security Objectives................................................................................................................ 22
4.1. Security Objectives for the TOE ..................................................................................................22
4.2. Security objectives for the environment.......................................................................................23
4.2.1. IT environment security objectives ................................................................................................................. 23
4.2.2. Non-IT environment security objective ........................................................................................................... 24
5.
IT Security Requirements...................................................................................................... 26
5.1. TOE Security Requirements ........................................................................................................26
5.1.1. TOE Security Function Requirements ............................................................................................................ 26
5.1.2. Minimum Security Strength of Function.......................................................................................................... 53
5.1.3. TOE Security Assurance Requirements ......................................................................................................... 53
5.2. Security Requirements for the IT environment ............................................................................54
5.2.1. Cryptographic support .................................................................................................................................... 54
5.2.2. Identification and Authentication..................................................................................................................... 54
6.
TOE Summary Specification ................................................................................................. 56
6.1. TOE Security Functions ...............................................................................................................56
6.1.1. F.ADMIN(Administrator Function) .................................................................................................................. 56
6.1.2. F.ADMIN-SNMP(SNMP administrator function) ............................................................................................. 64
6.1.3. F.SERVICE(Service mode function) .............................................................................................................. 65
6.1.4. F.USER(User Function) ................................................................................................................................. 67
6.1.5. F.BOX(User Box Function) ............................................................................................................................ 69
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6.1.6. F.PRINT(Secure Print Function) .................................................................................................................... 72
6.1.7. F.OVERWRITE-ALL(All area overwrite deletion function) ............................................................................. 73
6.1.8. F.CRYPT(Encryption key generation function) .............................................................................................. 73
6.1.9. F.HDD(HDD verification function) .................................................................................................................. 74
6.1.10. F.RESET(Authentication Failure Frequency Reset Function) ..................................................................... 74
6.1.11. F.TRUSTED-PASS (Trust Channel Function) ............................................................................................... 74
6.1.12. F.S/MINE (S/MINE Encryption Processing Function) ................................................................................... 74
6.2. TOE Security Strength of Function............................................................................................75
6.3. Correspondence between TOE Security Functions and Function Requirements........................75
6.4. Assurance Measures ...................................................................................................................75
7. PP Claims................................................................................................................................ 77
8. Rational ................................................................................................................................... 78
8.1. Security Objectives Rationale......................................................................................................78
8.1.1. Necessity ........................................................................................................................................................ 78
8.1.2. Sufficiency of Assumptions ............................................................................................................................. 79
8.1.3. Sufficiency of Threats ..................................................................................................................................... 80
8.1.4. Sufficiency of Organizational Security Policies............................................................................................... 82
8.2. IT Security Requirements Rationale ............................................................................................83
8.2.1. Rationale for IT Security Functional Requirements ........................................................................................ 83
8.2.2. Rational for Minimum Strength of Function .................................................................................................. 108
8.2.3. Rationale for IT Security Assurance Requirements ...................................................................................... 108
8.2.4. Consistency rationale for the set of IT security functional requirement ........................................................ 108
8.3. Rational for TOE Summary Specifications.................................................................................109
8.3.1. Rational for the TOE Security Functions ...................................................................................................... 109
8.3.2. Rational for TOE Security Strength of Function............................................................................................ 130
8.3.3. Mutually Supported TOE Security Functions ................................................................................................ 131
8.3.4. Rationale for Assurance Measures............................................................................................................... 131
8.4. PP calims rationale ....................................................................................................................131
―【 List of Figures 】――――――――――――――――――――――――――――
Figure 1 An example of the expected environment for usage of the MFP.......................................8
Figure 2 Hardware composition that relates to TOE........................................................................9
―【 List of Tables 】―――――――――――――――――――――――――――――
Table 1 Cryptographic Key Generation Relation of Standards・Algorithm・Key sizes....................27
Table 2 Cryptographic Operation Relation of Algorithm・Keysizes・Cryptographic Operation..........27
Table 3 User Box Access Control Operational List..........................................................................28
Table 4 Secure Print File Access Control: Operational List.............................................................28
Table 5 Setting Management Access Control: Operational List ......................................................29
Table 6 TOE Security Assurance Requirements .............................................................................54
Table 7 The list of the name and identifier of TOE Security function...............................................56
Table 8 character and number of digits used for password.............................................................57
Table 9 A type of overwrite deletion of all area and the method of overwriting ...............................60
Table10 Correspondence between TOE Assurance Requirements and assurance measures.......75
Table 11 Conformity of Security Objectives to assumptions and Threats........................................78
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Table 12 Conformity of IT Security Functional Requirements to Security Objectives......................83
Table 13 Dependencies of IT Security Functional Requirements Components ..............................98
Table 14 Mutual Support Correlations of IT Security Functional Requirements ............................102
Table 15 Conformity of TOE Security Functions to TOE Security Functional Requirements ........109
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1. ST Introduction
1.1. ST Identification
・ST Title
: bizhub C253 / bizhub C203 / ineo+ 253 / ineo+ 203 Control Software
Security Target
・ST Version
・Created on
: 1.03
: 2.3
: September 21, 2007
・Created by
: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. Eiichi Yoshida
・CC Version
1.2. TOE Identification
・TOE Name
: Japanese Name:
bizhub C253 / bizhub C203 / ineo+ 253 / ineo+ 203 control Software
English Name:
bizhub C253 / bizhub C203 / ineo+ 253 / ineo+ 203 Control Software
・TOE Version
・TOE Type
: A02E0Y0-0100-GN0-02
: Software
・Created by
: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
1.3. CC Conformance Claim
The TOE, which is the subject of this ST, conforms to the following.
•
Security function requirement
Part2 Extended
•
•
Security assurance requirement
Part3 Conformant
Evaluation assurance level
EAL3 Conformant (No additional assurance component)
•
•
PP Reference
This ST does not carry out a PP reference.
Complement
Apply- Complement 0512 (Interpratations-0512)
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•
Reference
・
Common Criteria for Information Technology Security Evaluation Part 1:Introduction and
general model 2005 Version 2.3 CCMB-2005-08-001
・
Common Criteria for Information Technology Security Evaluation Part 2:Security
functional requirements 2005 Version 2.3 CCMB-2005-08-002
・
Common Criteria for Information Technology Security Evaluation Part 3:Security
assurance requirements 2005 Version 2.3 CCMB-2005-08-003
・
・
CCIMB Interpretations-0407
Common Criteria for Information Technology Security Evaluation Part 1: Introduction and
General Model Version 2.3 August 2005 CCMB-2005-08-001 (December 2005 Translation
Version 1.0, Information-technology Promotion
Information Security Certification Office)
・
Agency
Japan,
Security
Center,
Common Criteria for Information Technology Security Evaluation Part 2: Security
Functional Requirements Version 2.3 August 2005 CCMB-2005-08-002(December
2005Translation Version 1.0, Information-technology Promotion Agency Japan, Security
Center, Information Security Certification Office)
・
Common Criteria for Information Technology Security Evaluation Part 3: Security
Assurance Requirements Version 2.3 August 2005 CCMB-2005-08-003(December 2005
Translation Version 1.0, Information-technology Promotion Agency Japan, Security Center,
Information Security Certification Office)
・
CCMB Interpretations - 0512 (December 2005 Information-technology Promotion Agency
Japan, Security Center, Information Security Certification Office)
1.4. ST Overview
bizhub C253, bizhub C203, ineo+ 253, ineo+ 203 is Konica Minolta Business Technologies, Inc.
digital MFP comprised by selecting and combining copy, print, scan and FAX functions.
(Hereafter, “MFP” as all these generic names). The target of evaluation (TOE) of this Security
Target (ST) is the “bizhub C253, bizhub C203, ineo+ 253, ineo+ 203” that controls the entire
operation of MFP, including the operation control processing and the image data management
that are accepting from the panel of the main body of MFP or through the network. This ST
explains the security functions that are realized by the TOE.
TOE offers the protection from exposure of the highly confidential document stored in the
MFP. Moreover, TOE can encrypt the image data written in HDD for the danger of taking HDD
that is the medium that stores the image data in MFP out illegally by installing the encryption
board which is the option parts of MFP. Besides, TOE has the deletion method to follow various
overwrite deletion standards. It deletes all the data of HDD completely and it contributes to the
prevention of the divulging information of the organization that uses MFP by using the method
at the time of abandonment or the lease returns.
This ST is the documentation for describing the necessity and sufficiency of these TOE
Security Functions.
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2. TOE Description
2.1. TOE Type
The bizhub C253 / bizhub C203 / ineo+ 253 / ineo+ 203 Control Software that is the TOE is an
embedded software product that controls the operation of whole MFP overall in the flash
memory on the MFP controller.
2.2. Environment for the usage of MFP
Figure 1 shows the expected general environment for the usage of MFP equipped with TOE.
Moreover, the matters, assumed in the environment for the usage, show by a run of the item
below
Office
MFP
SMTP Server
DNS Server
TOE
FTP Server
Internet
Firewall
Public line
External Network
Intra-office LAN
User Information
Management Server
Client PC
Figure 1 An example of the expected environment for usage of the MFP
z The intra-office LAN exists as a network in the office.
z The MFP connects to the client PCs via the intra-office LAN, and has mutual data
communication.
z When the SMTP server or FTP server are connected to the intra-office LAN, the MFP can
carry out data communication with these. (Need the DNS Service when setting the Domain
name of SMTP Server or FTP Server)
z The case, which is unifying management of the user ID and the user password in the server,
also assumes. In this case, TOE can control the access to the MFP by using the user
registration information in the user information management server.
z When the intra-office LAN connects to an external network, measures such as connecting via
a firewall are taken, and an appropriate setup to block access requests to the MFP from the
external network is carried out.
z The intra-office LAN provides a network environment that cannot be intercepted by the office
operation including using the switching hub and installing the wiretapping detector.
z The public line connected with MFP is used to communicate with the FAX and the remote
support function.
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2.3. Operation Environment of the TOE
MFP
MFP Controller
RS-232C
Network
Unit
CPU
RAM
HDD
NVRAM
※Encryption
Board
Ethernet
Flash Memory
・ TOE
・OS
・Message Data
etc.
USB
※Image Controller
※ FAX Unit
Public line
Main/Sub
Power
Panel
Operator
Panel
Panel
Operator
Scan Unit
Auto Document Feeder
Paper
Printer
Unit
Paper
Figure 2 Hardware composition that relates to TOE
Figure2 shows the structure of the hardware environment on the MFP that TOE needs for the
operation. TOE exists on the flash memory on the MFP controller which builds in the body of the
MFP and is loaded and run on the RAM.
The following explains about the unique hardware on the MFP controller, the hardware having
the interface to the MFP controller, and the connection by using RS-232C, shown in Figure 2.
z Flash memory
Storage medium that stores the object code of the “MFP Control Software” that is the TOE.
Additionally, it stores the message data of each country’s language to display the response
accessed through the panel and network, OS (VxWorks), and so on.
z HDD
Hard disk drive of 60GB in capacity. It is utilized besides the image data is stored as a file,
temporarily image data with such as extension conversion, and as an area where the
transmission address data kept.
As a feature function, the security function (HDD lock function) is installed, being possible to
set the password and not being possible to read and write unless it agrees to the password.
Furthermore, when the frequency of uniformity of it becomes unsuccessful in password
collation, the function is also ready to lock the password collation function.
z NVRAM
Nonvolatile Memory. The memory medium that stores various setting values needed for the
operation of the MFP used for processing of TOE.
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z Encryption Board(* Option parts)
The hardware-based cryptographic function, which is the integrated circuit for encryption, is
installed in order to encipher all data to be written in HDD. It is not pre-installed in MFP as
standard for convenience' sake of a sale, but is sold as an optional part.
z Panel
The exclusive control device for the operation of the MFP equipped with the touch panel of a
liquid crystal monitor, ten-key, start key, stop key, screen switch key, etc.
z Main power supply
The power switch for activating MFP
z Network Unit
The interface device to connect to the Ethernet. It supports 10BASE-T, 100BASE-TX and
Gigabit Ethernet.
z USB
The Port to print with local connection. It has interface connected directly to MFP controller.
z Image Controller (* Option parts)
The controller for Fiery etc. that be connected to MFP controller with Video bus.
z FAX Unit(* Option parts)
A device that is used for the communication for sending and receiving FAX and for the remote
diagnosis function (described later) via public line. According to the circumstances in sales, it
is sold as the option part and is not attached on the MFP.
z Scan Unit/ An automatic manuscript feeder
The device that scans images and photos from a paper and converts them into the digital
data.
z Printer Unit
The device that actually prints the converted image data for printing when demanded to
print by the MFP controller.
z RS-232C
The serial can be connected through the D-sub9 pin. When breaking down, the maintenance
function can be used through this. In addition, it can utilize a remote diagnostic function
(later description) to connect with the modem connected with the public circuit.
2.4. Role of the TOE User
The roles of the personnel that relate to the use of the MFP with the TOE are defined as
follows.
z User
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MFP’s user who is registered into MFP.(In general, the employee in the office is assumed.)
z Administrator
MFP's user who carries out the management of the operation of MFP. An administrator
performs the operation management of MFP and the management of user. (In general, it is
assumed that the person elected from the employees in the office plays this role.)
z Service Engineers
A user who performs management of maintenance for the MFP. Service Engineer performs the
repair and adjustment of MFP. (In general, the person in charge at the sales companies that
performs the maintenance service of MFP and is in cooperation with Konica Minolta Business
Technologies, Inc. is assumed.)
z Person in charge at the Organization that uses the MFP
A person in charge at the organization that manages the office where the MFP is installed.
This person assigns an administrator who carries out the management of the operation of the
MFP.
z Person in charge at the Organization that manages the Maintenance of the MFP
A person in charge at the organization that carries out management of the maintenance for
the MFP. This person assigns service engineers who perform the maintenance management
for the MFP.
Besides this, though not a user of TOE, a person who goes in and out the office are assumed as
an accessible person to TOE.
2.5. Functions provided by the TOE
A User uses a variety of functions of the TOE from the panel and a client PC via the network.
The following explains typical functions, such as the basic function, the user box function to
manage the image files stored, the user identification and authentication function, the
administrator
function
manipulated
by
administrator,
the
service
engineer
function
manipulated by service engineer, and the function operated in the background without user's
awareness.
2.5.1. Basic Function
In MFP, a series of function for the office work concerning the image such as copy, print, scan,
and fax exists as a basic function, and TOE performs the core control in the operation of these
functions. It converts the raw data acquired from the external device of the MFP controller into
the image file, and registered in RAM and HDD. (After two or more conversion processing is
done, the compression conversion is done as for the print image file from PC.) The image file
which has been compressed is decompressed into data for the print or for the transmission, and
is transmitted to the device outside of the MFP controller concerned.
Operations of copy, print, scan, and fax are managed by the unit of job, and can be changed the
operation order, can be modified the finishing if it’s a printing job, and can be cancelled the
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operation, by the command from the panel.
The following is the functions related to the security in the basic function.
z Secure Print Function
When the Secure Print password is received with the printing data, the image data is stored
as the standby status. And the print command and password input from the panel allows
printing.
This function, in the printing operation by the PC, removes the possibility that other users
stole a glance at the printing of high-leveled confidential data and lost it into the other
printings.
2.5.2. User Box Function
The directory named “user box” can be created as an area to store the image file in HDD. Three
types of user box exist; the first is the personal user box which a user possesses, the second is the
public user box which the registered user making a group within a certain number uses jointly
and the third is the group box which the users belong to same account uses jointly. As for the
personal user box, the operation is limited only for the user who owns it, the public user box
performs access control by sharing a password set to the user box among users and group box,
the operation is limited only for the user who the use of the account is permitted.
TOE processes the following required operation, against the user box or the image file in a user
box for an operation requests that is transmitted from the panel or the network unit through a
network from a client PC.
z Print, transmission, and download from client PC, of image file in a user box
¾
The encryption of box file is possible in the E-mail that is one of the transmission
methods.
z Deletion of the image file in the user box, and move and copy to other user boxes
z Storage period setting of image file in user box (Delete automatically after the period passes.)
z Change of user box name, change of the password, and deletion of user box, etc.
z Attribute setting of user box (classification change of a personal user box , a public user box
and a group box)
2.5.3. User Authentication Function
TOE can limit the user who uses MFP. When accessing it through the panel or the network,
TOE performs the identification and authentication that the user is permitted to use the MFP by
applying the user password and user ID. When the identification and authentication succeeds,
TOE permits the user the use of the basic function and the user box function, etc.
Several types of the following are supported in the method of the user authentication.
①
Machine authentication
A method to authenticate on MFP by registering a user ID and a user password into HDD on
MFP controller.
②
External server authentication
A method to authenticate with processing the authentication on MFP by using the user ID
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and the user password that are registered on the user information management server
which is connected by the intra-office LAN without managing the user ID and user
password on the MFP side. Though two or more methods named Active Directory¹, NTLM 1,
and NDS are supported, the method of the external server authentication assumed in this
ST is applied only the case with Active Directory.
2.5.4. Account Authentication Function
TOE can manage the MFP users by grouping them into Account unit. The methods of Account
Authentication are as follows.
①
Method synchronized with User Authentication
The user is set Account ID which he belongs to beforehand, and the user is related to
account ID of belonging account when user is certified.
②
Method not synchronized with User Authentication
When the certification is done by the account password set to each account ID, the user is
related to the concerned account ID.
2.5.5. Administrator Function
TOE provides the functions such as the management of user boxes, management of user
information at the time of MPF authentication and management of various settings of the
network, image quality, etc in the administrator mode that only authenticated administrator can
manipulate.
The following shows the function related to the security.
z The user registration management
¾ Registration or change in user ID and user password, and deletion of a user.
z The account registration management
¾ Registration or change in account ID and account password.
z Management of user box settings
¾ Registration or change in user box password, and management of user attributes
z Operation setting of automatic system reset
¾ Setting of the function that logs out automatically when the setting time passed.
z Management of network setting
¾ Connection setting of the intra-office LAN (setting of DNS server)
¾ SMTP setting (setting of SMTP server utilized by E-mail transmission)
¾ IP address, NetBIOS name and AppleTalk printer name etc.
z Backup or restore function of NVRAM and HDD
¾ It is performed through the network by using an application exclusive use for the
management installed in the client PC.
z Complete overwrite deletion function of HDD
¾ There is the data deletion method conformed to various military standards.
¹ A method of directory service that Windows Server 2000 (after it) offers to consolidate user information in
network environment of Windows platform.
Abbreviation of NT LAN Administrator. Authentic method used in directory service that Windows NT offers to
consolidate user information in network environment of Windows platform.
1
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¾ When it's started, in conformity with a set method, the overwrite deletion is executed for
all area of HDD.
z Format function of HDD
¾ A logical format is executable.
The followings are the operation setting function related especially to the behavior of the
security function.
z Method setting of a user authentication function
¾ Select the machine authentication, the external server authentication, or the user
authentication stop.
¾ Combination with Account Authentication is set up. (Method synchronized with User
Authentication, Method not synchronized with User Authentication)
z User: Setting of access by PUBLIC
¾ Select the permission and prohibition of MFP utilization of the user who is not identified
by user ID.
z Setting of a password policy function
¾ Select ON or OFF for the function to check the several conditions of the password, such as
the valid number of digits for the various passwords, etc.
z Setting of the authentication method of secure print and the prohibit function of
authenticating operations.
¾ There are the mode that the authentication operation prohibition function operates for the
authentication of the secure print, and the mode not done.
¾ The operation mode of the function that the failure authentication in each authentication
function detects the failure synchronizes, too.
¾ Selecting the above-mentioned operational mode
z Setting of the network setting modification function by SNMPv1 and v2.
¾ Select the permission or the prohibition of the modification operation function of MIB by
SNMPv1 and v2
z Setting of HDD lock function
¾ Selecting ON or OFF.
¾ Register or change the HDD lock password when ON is selected.
z Setting of encryption function(* only when the encryption board installed)
¾ Selecting ON or OFF.
¾ Register or change the Encryption passphrase when ON is selected.
z Setting of user box collective management function
¾ Select the permission or the prohibition for the user box collective management function.
z Setting of the print capture function
¾ A function to verify the print data received by MFP when print function breaks down.
¾ Selecting ON or OFF for the above-mentioned function.
z Setting of network setting management reset function
¾ A network setting management reset function resets a series of items in a factory default.
¾ Selecting permission or prohibition for the above-mentioned function.
Setting of Trusted Channel (SSL/TLS encryption communication) Function
z
¾
Create or import SSL/TLS server certificate.
¾
Setting of encryption method that is used for communication.
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z Setting of Transmission address data
¾
Setting of address or method that is used for box file transmission etc.
¾
Import S/MIME certificate
¾
Setting of encryption method that is used for data encryption.
2.5.6. Service Engineer Function
TOE provides a management function of administrator and a maintenance function, such as
adjusting the device for Scan/Print etc, within the service mode that only a service engineer can
operate. The following shows the functions related to the security.
z Modification function of administrator password
The followings are the operation setting function related especially to the behavior of the
security function.
z Authentication setting of the service engineer with the CE 2 password.
¾ Select ON or OFF.
z Setting of remote diagnostic function (later description)
¾ Able to select permission or prohibition.
z Setting of a TOE update function via Internet
¾ Able to select permission or prohibition.
z Setting of maintenance function
¾ Able to select permission or prohibition.
z The format function of HDD
¾ A logical format and a physical format are executable.
z Installation setting of HDD
¾ An explicit installation setting is necessary to use HDD as a data storage area.
¾ When the installation setting done, a logical format is executed.
z Initialization function
¾ The various setting values that the user or the administrator has set and the data that the
user has stored are deleted.
2.5.7. Other Functions
TOE provides the functions that run background without awareness of the user and the
updating function of TOE. The following explains the major functions.
①
Encryption key generation function
When the encryption board, an optional product, is installed in MFP controller, the encoding
and decoding is processed on the encryption board due to the reading and writing data in
HDD. (TOE does not process the encryption and description itself.)
The operation setting of this function is performed by the administrator function. When it
operates, TOE generates the encryption key by the encryption passphrase that was entered
2Abbreviation
of Customer Service engineer
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on the panel.
②
HDD Lock Function
HDD has the HDD lock function as measure against the illegal taking out, when the
password is set.
The administrator function does the operation setting of this function. As for the starting
operation of MFP, the access to HDD is permitted by the matching of the HDD lock
password set to the HDD and the one set on the MFP. (Even if HDD is taken out, it is
impossible to use it excluding the MFP that the concerned HDD installed.)
③
Remote diagnostic function
Making use of several connected systems such as E-mail, and a modem connection through a
FAX public line mouth or a RS-232C, in communication with support center of MFP
produced by Konica Minolta business technologies, Inc., it manages the state condition of
MFP and the machinery information such as frequency of printing. In addition, if necessary,
appropriate service (shipment of an additional toner, the account claim, dispatch of the
service engineer due to the failure diagnosis, etc.) is provided.
④
Updating function of TOE
TOE facilitated with the function to update itself. As for the update means, there are a
method that exists as one of items of remote diagnostic function, a method that downloads
from FTP server through Ethernet (TOE update function via Internet), and a method that
performs the connection of the Compact Flash memory medium.
⑤
Encryption Communication function
TOE can encrypt the data transmitted from PC to MFP, and the data received by download
from MFP by using SSL/TLS.
The operation setting of this function is performed by the administrator function.
⑥
S/MIME certificate automatic registration function
It is the function to register the certificate for S/MIME (conforms to ITU-T X.509) with each
transmission address automatically. When a certificate is attached in received e-mail, MFP
recognizes user ID according to the information of e-mail header, and registers the
certificate as certificate of the same user ID.
2.5.8. Enhanced Security Function
Various setting functions related to the behavior of the security function for the Administrator
function and the Service engineer function can be set collectively to the secure values by the
operation settings of the “Enhanced Security Function”. Each value set is prohibited changing
itself into the vulnerable one individually. As the function that does not have a setting function of
the operation individually, there is the reset function of the network setting and the update
function of TOE through the network, but the use of these functions is prohibited.
The following explains the series of the setting condition of being the enhanced security function
active. In order to activate the enhanced security function, the prerequisite is required that an
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administrator password and a CE password should be set along with the password policy.
z Setting of user identification and authentication function
:Valid(Either the machine authentication, or
the external server authentication are available)
z User:Setting of access of PUBLIC
:Prohibit
z Setting of a service engineer authentication function
:Valid
z Setting of password policy function
:Valid
z Setting of secure print authentication method
: Authentication
operation
prohibition
function
effective method (In conjunction with it, it becomes
in the state of the panel lock for five seconds at the
time of the authentication failure in the panel. And
it becomes the account lock (Failure frequency
threshold: 1-3 times) as well.)
z Setting of user box collective management function
:Prohibit
z Setting of the network setting modification function with SNMPv1 and v2
:Prohibit
z Setting of HDD lock function
:Valid
z Setting of Encryption function
:Valid
z Setting of print capture function
:Prohibit
z Setting of maintenance function
:Prohibit
z Remote diagnostic function
:Prohibit
z Network setting management reset function
:Prohibit
z TOE update function via Internet
:Prohibit
z Setting function of transmission address data by user
:Prohibit
z Operation setting of Trusted Channel function
:Valid
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3. TOE Security Environment
This chapter will describe the concept of protected assets, assumptions, threats, and
organizational security policies.
3.1. Protected Assets
Security concept of TOE is “the protection of data that can be disclosed against the intention of
the user”.
As MFP is generally used, the following image file in available situation becomes the
protected assets.
•
Secured print file(image file registered by secured print)
•
User Box file(image file stored in the personal user box and public user box)
As for a image file of a job kept as a wait state by activities of plural jobs, and a image file of a
job kept that prints the remainder of copies becoming as a wait state for confirmation of the
finish, and other than the image file dealt with the above-mentioned is not intended to be
protected in the general use of MFP, so that it is not treated as the protected assets.
In the print of the secure print file and the transmission of the user box file, making in the
preparation for the threat thought when illegal MFP or mail server is connected by any chance,
the setting of MFP (IP address etc.) requires not to be modified illegally. Therefore, the setting of
MFP (IP address etc.) is considered as subsidiary protected assets.
On the other hand, when the stored data have physically been separated from the jurisdiction
of a user, such as the use of MFP ended by the lease return or being disposed, or the case of an
HDD theft, a user has concerns about leak possibility of every remaining data. Therefore, in this
case, the following data files become protected assets.
•
Secure Print File
•
User Box File
•
On Memory Image File
¾
Image file of job in the wait state
•
Stored Image File
•
Remaining Image File
¾
¾
Stored image files other than secure print file and user box file
The file which remains in the HDD data area that is not deleted only by general
deletion operation (deletion of a file maintenance area)
•
File related to the Image
¾ Temporary data file generated in print image file processing
•
Transmission Address Data File
¾ File including E-mail address and telephone numbers that become the destination to
transmit an image.
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3.2. Assumptions
The present section identifies and describes the assumptions for the environment for using the
TOE.
A.ADMIN(Personnel conditions to be an administrator)
Administrators, in the role given to them, will not carry out a malicious act during the series of
permitted operations given to them.
A.SERVICE(Personnel conditions to be a service engineer)
Service engineers, in the role given to them, will not carry out a malicious act during series of
permitted operations given to them.
A.NETWORK(Network connection conditions for MFP)
・The intra-office LAN where the MFP with the TOE will be installed is not intercepted.
・When the intra-office LAN where the MFP with the TOE will be installed is connected to an
external network, access from the external network to the MFP is not allowed.
A.SECRET(Operational condition about secret information)
Each password and encryption passphrase does not leak from each user in the use of TOE.
A.SETTING(Operational setting condition of Enhanced Security function)
MFP with the TOE is used after enabling the enhanced security function.
A.SERVER(Management condition of the user information management server connected to the
intra-office LAN)
When the external server authentication is used for the user authentication method, the user
information management server that is connected with the intra-official LAN installing MFP
with TOE are performed appropriately the management of the account, access control and
patch application, etc.
3.3. Threats
In this section, threats that are expected during the use of the TOE and the environment for
using the TOE are identified and described.
T.DISCARD-MFP(Lease-return and disposal of MFP)
When the leaser returned or the discarded MFP were collected, secure print file, a user box file,
on memory image file, the stored image file, the remaining image file, the image-related file,
the transmission address data file, and the set various passwords can leak by the person with
malicious intent taking out and analyzing an HDD in MFP.
T.BRING-OUT-STORAGE(An unauthorized carrying out of HDD)
・A secure print file, a user box file, a on memory image file, a stored image file, a remaining
image file, an image-related file, a transmission address data file, and the set-up various
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passwords can leak by a person or a user with malicious intent illegally taking out and
analyzing an HDD in MFP.
・A person or a user with malicious intent illegally replaces an HDD in MFP. In the replaced
HDD, new files of the secure print file, a user box file, on memory image file, a stored image
file, a remaining image file, an image related file, a transmission address data file and set
various passwords are accumulated. A person or a user with malicious intent takes out and
analyzes the replaced HDD and image files leak.
T.ACCESS-PRIVATE-BOX(Unauthorized access to the personal user box which used a user
function)
Exposure of the user box file when a person or a user with malicious intent accesses the user
box where other user owns, and downloads, prints and transmits the user box file (E-mail
transmission, FTP transmission, fax transmission, and SMB 3 transmission).
T.ACCESS-PUBLIC-BOX(Unauthorized access to public box which used a user function)
Exposure of the user box file when a person or the user with malicious intent accesses the
public user box which is not permitted to use, and downloads, prints, transmits (E-mail
transmission, FTP transmission, FAX transmission and SMB transmission) and removes and
copies to the other user box the user box file.
T.ACCESS-GROUP-BOX(Unauthorized access to the group user box which used a user
function)
Exposure of the user box file when a person or the user with malicious intent accesses the
group user box which the account where a user does not belong to owns, and downloads, prints,
transmits (E-mail transmission, FTP transmission, FAX transmission and SMB transmission)
and removes and copies to the other user box the user box file.
T.ACCESS-SECURE-PRINT(Unauthorized access to the secure print file which used a user
function)
Exposure of the secure print file when a person or the user with malicious intent prints the
secure print file which is not permitted to use.
T.ACCESS-NET-SETTING(An unauthorized change of network setting)
・Malicious person or user changes the network settings that is related to the transmission of a
user box file. Even an addressee is set precisely, a user box file is transmitted (the E-mail
transmission or the FTP transmission) to the entity which a user does not intend to, so that
a user box file is exposed.
<The network setting which is related to user box file transmission>
¾
Setting related to the SMTP server
¾ Setting related to the DNS server
・Malicious person or user changes the network setting which set in MFP to identify MFP itself
where TOE installed, by setting to the value of the entity such as another illegal MFP from
the value of MFP (NetBIOS name, AppleTalk printer name, IP address etc) that TOE is
originally installed, so that secure print file is exposed.
3Abbreviation
of Server Message Block.
Protocol to realize the file sharing or printer sharing on Windows.
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T.ACCESS-SETTING(An unauthorized change of a function setting condition related to
security)
The possibility of leaking user box file and secure print file rises because malicious person or
user changes the settings related to the enhanced security function.
T.BACKUP-RESTORE(Unauthorized use of Backup function and restoration function)
The user box file and the secure print file can leak by malicious person or user using the
backup function and the restoration function illegally. Also highly confidential data such as
password can be exposed and each setting values are falsified.
3.4. Organizational Security Policies
Recently, there are a lot of organizations that demand security of network in office.
Although a threat of wiretapping activities etc. in intra-office LAN is not assumed in this ST,
TOE security environment that corresponds to the organization that demanded security
measures in intra-office LAN is assumed.
Particularly, correspond to the secure communication of Protected Assets considering the
confidentiality showed in the preceding.
The security policies applied in the organization that uses TOE are identified and described as
follows.
P.COMMUNICATION-DATA (secure communication of image file)
Highly confidential image file (secure print file, user box file) which transmitted or received
between IT equipment is communicated via trusted pass to the correct destination, or has to be
encrypted.
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4. Security Objectives
In this chapter, in relation to the assumptions, the threats, and the organizational security
policy identified in Chapter 3, the required security objectives policy for the TOE and the
environment for the usage of the TOE are described by being divided into the categories of the
security objectives for the TOE and the security objectives for the environment, as follows.
4.1. Security Objectives for the TOE
In this section, the security objectives for the TOE is identified and described.
O.REGISTERED-USER(Utilization of registered user)
TOE permits only the registered user to user the MFP installing TOE.
O.PRIVATE-BOX(Personal user box access control)
・TOE permits only a user to use the user function of the personal user box which this user
owns.
・TOE permits only a user to use the user function of the use box file in the personal user box
which this user owns.
O.PUBLIC-BOX(Public user box access control)
・TOE permits the registered user the reading operation of the public user box.
・TOE permits the user function of the public user box only to the user who is permitted the
use of this public user box.
・TOE permits the user function of the user box file in the public user box only to the user who
is permitted the use of this public user box.
O.GROUP-BOX(Group user box access control)
・TOE permits the user function of the group user box which this account owns only to the user
who is permitted the use of this account.
・TOE permits the user function of the user box file in the group user box which this account
owns only to the user who is permitted the use of this account.
O.SECURE-PRINT(Secure print file access control)
TOE permits the print of the secure print file only to the user who is permitted the use of this
secure print file.
O.CONFIG(Access limitation to management function)
TOE permits only the administrator the operation of the following functions.
・The setting function related to the SMTP server
・The setting function related to the DNS server
・The setting function related to the address of MFP
・Backup function
・Restoration function
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・The setting function of Trusted Channel function setting data
・The setting function of certification, transmission address data, etc used for S/MIME
function.
TOE permits the operation of the following functions only to the administrator and the service
engineer.
・The function related to the setting of Enhanced Security function
O.OVERWRITE-ALL(Complete overwrite deletion)
TOE overwrites all data regions of HDD in MFP by using the deletion data, and makes all the
image data of restoration impossible. In addition, TOE offers a function to initialize a setting
value such as the highly confidential password on NVRAM (Administrator Password, SNMP
Password, HDD Lock Password, and Encryption Passphrase) that is set by a user or an
administrator.
O.CRYPT-KEY(Encryption key generation)
TOE generates the encryption key to encrypt and store all data including the image file
written in HDD in MFP.
O.CHECK-HDD(Validity confirmation of HDD)
TOE verifies that correct HDD is installed.
O.TRUSTED-PASS(The use of Trusted Channel)
TOE offers the function that communicates via Trusted Channel the following image file which
is transmitted and received between MFP and PC.
< Image file transmitted from MFP to PC >
・User box file
< Image file transmitted from PC to MFP >
・Image file that will be stored as user box file
・Image file that will be stored as secure print file
O.CRYPTO-MAIL(The use of encrypted mail)
TOE offers the function that encrypts and transmits the user box file transmitted from MFP to
the correct destination with e-mail.
4.2. Security objectives for the environment
In this section, the security objectives for the environment, in the environment of the usage of
the TOE, is identified and described being divided into the IT environment security objectives
and the non-IT environment security objectives.
4.2.1. IT environment security objectives
OE.CRYPT(Encryption of HDD)
An encryption board installed in MFP encrypts all data including an image file to be written in
HDD inside MFP and then stores it to an HDD.
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OE.LOCK-HDD(Access control of HDD)
HDD installed in MFP accepts reading out of data only from the MFP where this HDD is
installed.
OE.FEED-BACK(Feedback of password)
The application of a browser etc. used by client PC to access MFP offers the appropriate
feedback protected for input user password, user box password, account password and
administrator password.
4.2.2. Non-IT environment security objective
OE-N.ADMIN(A reliable administrator)
The person in charge in the organization who uses MFP will assign a person who can faithfully
execute the given role during the operation of the MFP with TOE as an administrator.
OE-N.SERVICE(The service engineer's guarantee)
・The person in charge in the organization that carries out the maintenance management of
the MFP educates a service engineer in order to faithfully carry out the given role for the
installation of the TOE, the set up of TOE and the maintenance of the MFP with TOE.
・The administrator observes the maintenance work of MFP with TOE by a service engineer.
OE-N.NETWORK(Network Environment in which the MFP is connected)
・The person in charge in the organization who uses MFP carries out the tapping prevention
measures by setting the cipher communications equipment and the tapping detection
equipment to the LAN of the office where MFP with TOE is installed.
・The person in charge in the organization who uses MFP carries out the measures for the
unauthorized access from the outside by setting up the equipment such as the firewall to
intercept the access from an external network to MFP with TOE.
OE-N.SECRET(Appropriate management of confidential information)
The administrator has the user implement the following operation.
・Keep the user password and secure print password confidential.
・Keep the user box password and account password confidential between the user who
commonly utilizes it.
・Should not set the value that can be guessed for the user password, secure print password
and the user box password.
・The user password and the user box password should be properly changed.
・When the administrator changes the user password or the user box password, make the user
to change them promptly.
The administrator executes the following operation.
・Should not set the value that can be guessed for the administrator password, the account
password, SNMP password, the HDD lock password and encryption passphrase.
・Keep the administrator password, account password, the SNMP password, the HDD lock
password, and the encryption passphrase confidential.
・The administrator password, the account password, the SNMP password, the HDD lock
password, and the encryption Passphrase should be properly changed.
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The service engineer executes the following operation.
・Should not set the value that can be guessed for the CE password.
・Keep the CE password confidential.
・The CE password should be properly changed.
・When the service engineer changes the administrator password, make the administrator to
change it promptly.
OE-N.SERVER(Secure user information management server)
The person in charge in the organization who uses MFP manages the user information
management server secure to the user information management server such as account
management, application of the patch done, and execution of the access control appropriately
made.
OE-N.SESSION(Termination of session after operation)
The administrator has the user implement the following operation.
・After the operation of the secure print file and the operation of user box and user box file end,
the logoff operation is performed.
The administrator executes the following operation.
・After the operation of the various function in administrator mode ends, the logoff operation is
performed
The service engineer executes the following operation.
・After the operation of the various function in service mode ends, the logoff operation is
performed.
OE-N.SETTING-SECURITY(Operation setting of Enhanced Security function)
The administrator makes the setting of the enhanced security function effective for the
operation of TOE.
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5. IT Security Requirements
In this chapter, the TOE security requirements and IT environment security requirements are
described.
<Definition of Label>
The security function requirements required for the TOE and IT environment are described.
Those regulated in CC Part 2 will be directly used for the functional requirements components,
and the same labels will be used as well. The new additional requirement which is not described
in CC part 2 is newly established and identified with the label that doesn't compete with CC part
2. In addition, [E] is added at the end of a label of a requirement needed in IT environment in
order to state it clearly whether an object of each requirement is TOE or IT environment.
< Method of specifying security function requirement "Operation" >
In the following description, when items are indicated in “italic” and “bold,” it means that they
are assigned or selected. When items are indicated in “italic” and “bold” with parenthesis right
after the underlined original sentences, it means that the underlined sentences are refined. A
number in the parentheses after a label means that the functional requirement is used
repeatedly. (The number to indicate the repetition is added with separating respectively by TOE
requirement and IT environmental requirement.)
<Method of clear indication of dependency>
The label in the parentheses “( )” in the dependent section indicates a label for the security
functional requirements used in this ST. When it is a dependency that is not required to be used
in this ST, it is described as “N/A” in the same parentheses.
5.1. TOE Security Requirements
5.1.1. TOE Security Function Requirements
5.1.1.1. Cryptographic Support
FCS_CKM.1
Cryptographic key generation
FCS_CKM.1.1
The TSF shall generate cryptographic keys in accordance with a specified cryptographic key generation
algorithm [assignment: cryptographic key generation algorithm] and specified cryptographic key sizes
[assignment: cryptographic key sizes] that meet the following: [assignment: list of standards].
[assignment: list of standards]:
Listed in 「Table1 Cryptographic key generation
Relation of Standards・Algorithm・Key sizes」
[assignment: cryptographic key generation algorithm]:
Listed in 「Table1 Cryptographic key generation
Relation of Standards・Algorithm・Key sizes」
[assignment: cryptographic key sizes]:
Listed in 「Table1 Cryptographic key generation
Relation of Standards・Algorithm・Key sizes」
Hierarchical to
Dependencies
:
:
No other components
FCS_CKM.2 or FCS_COP.1(FCS_COP.1, FCS_COP.1[E]), FCS_CKM.4(N/A),
FMT_MSA.2(N/A)
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Table 1 Cryptographic Key Generation
List of Standards
Relation of Standards・Algorithm・Key sizes
Cryptographic Key Generation Algorithm
FIPS 186
Pseudorandom number Generation Algorithm
Cryptographic Key sizes
・ 128 bit
・ 192 bit
・ 168 bit
・ 256 bit
KonicaMinolta
KonicaMinolta HDD Encryption Key Generation
Encryption
Algorithm (SHA-1)
128 bit
specification standard
FCS_COP.1
Cryptographic operations
FCS_COP.1.1
The TSF shall perform [assignment: list of Cryptographic operations] in accordance with a specified
cryptographic algorithm [assignment: cryptographic algorithm] and cryptographic key sizes
[assignment: cryptographic key sizes] that meet the following: [assignment: list of standards].
[assignment: list of standards]:
Listed in 「Table2 Cryptographic operation
Relation of Algorithm・Key sizes・Cryptographic operation」
[assignment: cryptographic algorithm]:
Listed in 「Table2 Cryptographic operation
Relation of Algorithm・Key sizes・Cryptographic operation」
[assignment: cryptographic key sizes]:
Listed in 「Table2 Cryptographic operation
Relation of Algorithm・Key sizes・Cryptographic operation」
[assignment: list of cryptographic operation]:
Listed in 「Table2 Cryptographic operation
Relation of Algorithm・Key sizes・Cryptographic operation」
Hierarchical to
Dependencies
No other components
FDP_ITC.1 or FCS_CKM.1 (FCS_CKM.1 ( only a part of events)), FCS_CKM.4
(N/A), FMT_MSA.2 (N/A)
:
:
Table 2 Cryptographic Operation Relation of Algorithm・Keysizes・Cryptographic Operation
List of standards
FIPS PUB 197
Cryptographic
Cryptographic
algorithm
key sizes
AES
・ 128 bit
Contents of Cryptographic operation
Encryption of S/MIME transmission data
・ 192 bit
・ 256 bit
SP800-67
3-Key-Triple-DES
・ 168 bit
Encryption of S/MIME transmission data
FIPS 186-1
RSA
・ 1024 bit
Encryption of cryptographic key to encrypt
・ 2048 bit
S/MIME transmission data
・ 3072 bit
・ 4096 bit
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5.1.1.2. User data protection
Subset access control
FDP_ACC.1[1]
FDP_ACC.1.1[1]
The TSF shall enforce the [assignment: access control SFP] on [assignment: list of subjects, objects, and
operations among subjects and objects covered by the SFP].
[assignment: list of subjects, objects, and operations among subjects and objects covered by the SFP]:
Listed in 「Table3 User box access control operational list 」
[assignment: access control SFP]:
User Box access control
Hierarchical to
Dependencies
No other components
FDP_ACF.1(FDP_ACF.1[1])
:
:
Table 3 User Box Access Control Operational List
Subject
Object
A task to act for a user
User Box
User Box File
Operational List
・A List of user boxes
・Print
・Transmission (E-mail transmission, FTP transmission,
SMB transmission and FAX transmission)
・Download
・Move to other user boxes
・Copy to other user boxes
・Backup
Subset access control
FDP_ACC.1[2]
FDP_ACC.1.1[2]
The TSF shall enforce the [assignment: access control SFP] on [assignment: list of subjects, objects, and
operations among subjects and objects covered by the SFP].
[assignment: list of subjects, objects, and operations among subjects and objects covered by the SFP]:
Listed in 「Tabel4 Secure print file access control operational list」
[assignment: access control SFP]:
Secure print file access control
Hierarchical to
Dependencies
:
:
No other components
FDP_ACF.1(FDP_ACF.1[2])
Table 4 Secure Print File Access Control: Operational List
Subject
A task to act for a user
FDP_ACC.1[3]
Object
Secure Print File Access Control
Operational list
・A List of Secure Print
Files
・Print
・Back-Up
Subset access control
FDP_ACC.1.1[3]
The TSF shall enforce the [assignment: access control SFP] on [assignment: list of subjects, objects, and
operations among subjects and objects covered by the SFP].
[assignment: list of subjects, objects, and operations among subjects and objects covered by the SFP]:
Listed in 「Table 5 Setting management access control operational list」
[assignment: access control SFP]:
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Setting management access control
Hierarchical to
Dependencies
:
:
No other components
FDP_ACF.1(FDP_ACF.1[3])
Table 5 Setting Management Access Control: Operational List
Subject
A task to act for a user
FDP_ACF.1[1]
Object
・HDD Lock Password Object
・Encryption passphrase Object
・SMTP Server Group Object
・DNS Server Group Object
・MFP Address Group Object 4
Operational list
・ Settings
・ Settings
・ Restore
Security attribute based access control
FDP_ACF.1.1[1]
The TSF shall enforce the [assignment: access control SFP] to objects based on the following: [assignment:
list of subjects and objects controlled under the indicated SFP, and for each, the SFP-relevant security
attributes, or named groups of SFP-relevant security attributes].
[assignment: list of subjects and objects controlled under the indicated SFP, and for each, the
SFP-relevant security attributes, or named groups of SFP-relevant security attributes]:
<Subject>
<Subject attributes>
・A task to act for a user
⇒ ・User Attribute(User ID)
・Account Name (Account ID)
・User Box Attribute(User Box ID)
・Administrator Attribute
---------------------------------------------------------------------------------------------------------------------------------------------<Object>
<Object attributes>
・User Box
⇒ ・User Attribute(User ID or Public or Account ID)
・User Box File
⇒ ・User Attribute(User ID or Public or Account ID)
・User Box Attribute(User Box ID)
[assignment: access control SFP]:
User Box access control
FDP_ACF.1.2[1]
The TSF shall enforce the following rules to determine if an operation among controlled subjects and
controlled objects is allowed: [assignment: rules governing access among controlled subjects and
controlled objects using controlled operations on controlled objects].
[assignment: rules governing access among controlled subjects and controlled objects using controlled
operations on controlled objects] :
<Operation control to Personal user box>
A task to act for a user is permitted to do the list display operation to the user box with the user
attribute (user ID) of an object attribute corresponding to the user attribute (user ID) of the subject
attribute.
<Operation control to user box file in Personal user box>
A task to act for a user is permitted to print, transmit (E-mail transmission, FTP transmission, SMB
transmission and FAX transmission), download, move to other user boxes and copy to the other user
boxes, to the user box file that have the matched user attributes (User ID) and user box attribute
(user box ID) of the object attribute with the user attributes (User ID) and user box attribute (user
box ID) of the subject attribute.
<Operation control to Group user box>
A task to act for a user is permitted to do the list display operation to the user box with the Account
4
The MFP address group object is a series of data concerning the address of the main body of MFP such as IP
address and the Appletalk printer name.
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Name (account ID) of an object attribute corresponding to the Account Name (account ID) of the
subject attribute.
<Operation control to user box file in Group user box>
A task to act for a user is permitted to print, transmit (E-mail transmission, FTP transmission, SMB
transmission and FAX transmission), download, move to other user boxes and copy to the other user
boxes, to the user box file that have the matched the Account Name (Account ID) and user box
attribute (user box ID) of the object attribute with the Account Name (Account ID) and user box
attribute (user box ID) of the subject attribute.
<Operation control to Public user box>
A task to act for the user who is related to the user attribute (user ID) is permitted to do the list
display operation to the user box where "Public" is set to the user attributes of the object attribute.
<Operation control to a user box file in Public user box>
A task to act for the user who is related to the user attribute (User ID) and user box attribute (user
box ID) is permitted to print, transmit (E-mail transmission, FTP transmission, SMB transmission,
and fax transmission), download, move to other user boxes, and copy operation to other user boxes to
the user box file that “Public” is set to the user attribute of the object attribute and has matched user
box attribute with the user box attribute of subject attribute.
FDP_ACF.1.3[1]
The TSF shall explicitly authorize access of subjects to objects based on the following additional rules:
[assignment: rules, based on security attributes, that explicitly authorize access of subjects to objects].
[assignment: rules, based on security attributes, that explicitly authorize access of subjects to objects]:
・A task to act for the user that has a administrator attribute is permitted to operate displaying of user
box list.
・A task to act for the user that has a administrator attribute is permitted to operate the back-up the
user box file.
FDP_ACF.1.4[1]
The TSF shall explicitly deny access of subjects to objects based on the [assignment: rules, based on
security attributes, that explicitly deny access of subjects to objects].
[assignment: rules, based on security attributes, that explicitly deny access of subjects to objects] :
None
Hierarchical to
Dependencies
FDP_ACF.1[2]
:
:
No other components
FDP_ACC.1(FDP_ACC.1[1]), FMT_MSA.3(FMT_MSA.3[1])
Security attribute based access control
FDP_ACF.1.1[2]
The TSF shall enforce the [assignment: access control SFP] to objects based on the following: [assignment:
list of subjects and objects controlled under the indicated SFP, and for each, the SFP-relevant security
attributes, or named groups of SFP-relevant security attributes].
[assignment: list of subjects and objects controlled under the indicated SFP, and for each, the SFP-relevant
security attributes, or named groups of SFP-relevant security attributes] :
<Subject>
<Subject attributes>
・task substituted for a user
⇒ ・File attributes(Secure print internal control ID)
・User attributes(User ID)
・Administrator attributes
---------------------------------------------------------------------------------------------------------------------------------------------<Object>
<Object attributes>
・Secure print file
⇒ ・File attributes(Secure print internal control ID)
[assignment: access control SFP] :
Secure print file access control
FDP_ACF.1.2[2]
The TSF shall enforce the following rules to determine if an operation among controlled subjects and
controlled objects is allowed: [assignment: rules governing access among controlled subjects and controlled
objects using controlled operations on controlled objects].
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[assignment: rules governing access among controlled subjects and controlled objects using controlled
operations on controlled objects] :
・A task to act for a user who has a user attribute (user ID) is permitted to display of the list of all the
secure print files.
・A task to act for a user who has a user attribute (user ID) and the file attribute (the secure print internal
control ID) is permitted the print operation to the secure print file that has matched the file attribute
(secure print internal control ID) with the file attribute (secure print internal control ID).
FDP_ACF.1.3[2]
The TSF shall explicitly authorize access of subjects to objects based on the following additional rules:
[assignment: rules, based on security attributes, that explicitly authorize access of subjects to objects].
[assignment: rules, based on security attributes, that explicitly authorize access of subjects to objects] :
A task to act for a user who has a administrator attribute is permitted to back up secure print file.
FDP_ACF.1.4[2]
The TSF shall explicitly deny access of subjects to objects based on the [assignment: rules, based on security
attributes, that explicitly deny access of subjects to objects].
[assignment: rules, based on security attributes, that explicitly deny access of subjects to objects] :
None
Hierarchical to
Dependencies
FDP_ACF.1[3]
:
:
No other components
FDP_ACC.1(FDP_ACC.1[2]), FMT_MSA.3(FMT_MSA.3[2])
Security attribute based access control
FDP_ACF.1.1[3]
The TSF shall enforce the [assignment: access control SFP] to objects based on the following: [assignment:
list of subjects and objects controlled under the indicated SFP, and for each, the SFP-relevant security
attributes, or named groups of SFP-relevant security attributes].
[assignment: list of subjects and objects controlled under the indicated SFP, and for each, the
SFP-relevant security attributes, or named groups of SFP-relevant security attributes] :
<Subject>
<Subject attributes>
・Task substituted for a user
⇒ ・Administrator attributes
・CE attributes
---------------------------------------------------------------------------------------------------------------------------------------------<Object>
・HDD Lock Password Object
・Encryption passphrase object
・SMTP server group object
・DNS server group object
・MFP address group object
[assignment: access control SFP]:
Setting management access control
FDP_ACF.1.2[3]
The TSF shall enforce the following rules to determine if an operation among controlled subjects and
controlled objects is allowed: [assignment: rules governing access among controlled subjects and
controlled objects using controlled operations on controlled objects].
[assignment: rules governing access among controlled subjects and controlled objects using controlled
operations on controlled objects] :
・A task act for a user who has a administrator attribute is permitted to set the HDD lock password
object and the encryption passphrase object.
・A task act for a user who has a administrator attribute is permitted to set the SMTP server group
object, the DNS server group object and the MFP address group object, and to operate the restoration.
・A task act for a user who has a CE attribute is permitted to set the HDD lock password object and the
encryption passphrase object.
FDP_ACF.1.3[3]
The TSF shall explicitly authorize access of subjects to objects based on the following additional rules:
[assignment: rules, based on security attributes, that explicitly authorize access of subjects to objects].
[assignment: rules, based on security attributes, that explicitly authorize access of subjects to objects] :
None
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FDP_ACF.1.4[3]
The TSF shall explicitly deny access of subjects to objects based on the [assignment: rules, based on
security attributes, that explicitly deny access of subjects to objects].
[assignment: rules, based on security attributes, that explicitly deny access of subjects to objects] :
None
Hierarchical to
Dependencies
:
:
No other components
FDP_ACC.1(FDP_ACC.1[3]), FMT_MSA.3(N/A)
5.1.1.3. Identification and authentication
Authentication failure handling
FIA_AFL.1[1]
FIA_AFL.1.1[1]
The TSF shall detect when [selection: [assignment: positive integer number], an administrator
configurable positive integer within [assignment: range of acceptable values]] unsuccessful
authentication attempts occur related to [assignment: list of authentication events].
[assignment: list of authentication events] :
・Authentication for accessing the service mode
・Re-authentication for changing the CE password.
[selection: [assignment: positive integer number], an administrator configurable positive integer
within [assignment: range of acceptable values]]
[assignment: range of acceptable values] : an administrator configurable positive integer within 1~3
FIA_AFL.1.2[1]
When the defined number of unsuccessful authentication attempts has been met or surpassed, the TSF
shall [assignment: list of actions].
[assignment: list of actions]:
<Action when it is detected>
・ Log off from the authentication status of the service mode if it is, and lock the authentication
function which uses the CE password.
・ If it’s not under the authentication status, lock the authentication function which uses the CE
password.
<Operation for recovering the normal condition>
Perform the lock release function of CE authentication by specific operation.
(When CE authentication lock time passed from specific operation, the release process is performed.)
Hierarchical to
Dependencies
FIA_AFL.1[2]
:
:
No other components
FIA_UAU.1(FIA_UAU.2[1])
Authentication failure handling
FIA_AFL.1.1[2]
The TSF shall detect when [selection: [assignment: positive integer number], an administrator
configurable positive integer within [assignment: range of acceptable values]] unsuccessful
authentication attempts occur related to [assignment: list of authentication events].
[assignment: list of authentication events] :
・Authentication for accessing the administrator mode
・Re-authentication for changing the administrator password
[selection: [assignment: positive integer number], an administrator configurable positive integer
within [assignment: range of acceptable values]]
[assignment: range of acceptable values]:an administrator configurable positive integer within 1~3
FIA_AFL.1.2[2]
When the defined number of unsuccessful authentication attempts has been met or surpassed, the TSF
shall [assignment: list of actions].
[assignment: list of actions] :
<Action when it is detected>
・ Log off from the authentication status of the administrator mode if it is, and lock the
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authentication function which uses the administrator password.
・ If it’s not under the authentication status, lock the authentication function which uses the
administrator password.
<Operation for recovering the normal condition>
・ Perform the lock release function offered within the service mode.
・ Perform the boot process of the TOE. (Release process is performed after Administrator
authentication lock time by the boot process.)
Hierarchical to
Dependencies
:
:
No other components
FIA_UAU.1(FIA_UAU.2[2])
Authentication failure handling
FIA_AFL.1[3]
FIA_AFL.1.1[3]
The TSF shall detect when [selection: [assignment: positive integer number], an administrator
configurable positive integer within [assignment: range of acceptable values]] unsuccessful
authentication attempts occur related to [assignment: list of authentication events].
[assignment: list of authentication events] :
Authentication for accessing the MIB object through SNMP
[selection: [assignment: positive integer number], an administrator configurable positive integer
within [assignment: range of acceptable values]]
[assignment: range of acceptable values]:an administrator configurable positive integer within 1~3
FIA_AFL.1.2[3]
When the defined number of unsuccessful authentication attempts has been met or surpassed, the TSF
shall [assignment: list of actions].
[assignment: list of actions]:
<Action when it is detected>
Deny the access to the MIB object and lock the authentication function to use SNMP password.
<Operation for recovering the normal condition>
・Perform the delete function of authentication failure frequency offered within the administrator
mode.
Hierarchical to
Dependencies
FIA_AFL.1[4]
:
:
No other components
FIA_UAU.1(FIA_UAU.2[2])
Authentication failure handling
FIA_AFL.1.1[4]
The TSF shall detect when [selection: [assignment: positive integer number], an administrator
configurable positive integer within [assignment: range of acceptable values]] unsuccessful
authentication attempts occur related to [assignment: list of authentication events].
[assignment: list of authentication events]:
Authentication for accessing the TOE by user
[selection: [assignment: positive integer number], an administrator configurable positive integer
within [assignment: range of acceptable values]]
[assignment: range of acceptable values]:an administrator configurable positive integer within 1~3
FIA_AFL.1.2[4]
When the defined number of unsuccessful authentication attempts has been met or surpassed, the TSF
shall [assignment: list of actions].
[assignment: list of actions]:
<Action when it is detected>
Log off from the authentication status of the user f it is, and lock the authentication function for the
user.
<Operation for recovering the normal condition>
・Perform the delete function of authentication failure frequency offered within the administrator
mode.
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Hierarchical to
Dependencies
:
:
No other components
FIA_UAU.1(FIA_UAU.2[3])
Authentication failure handling
FIA_AFL.1[5]
FIA_AFL.1.1[5]
The TSF shall detect when [selection: [assignment: positive integer number], an administrator
configurable positive integer within [assignment: range of acceptable values]] unsuccessful
authentication attempts occur related to [assignment: list of authentication events].
[assignment: list of authentication events]:
Authentication for accessing the secure print file
[selection: [assignment: positive integer number], an administrator configurable positive integer
within [assignment: range of acceptable values]]
[assignment: range of acceptable values]:an administrator configurable positive integer within 1~3
FIA_AFL.1.2[5]
When the defined number of unsuccessful authentication attempts has been met or surpassed, the TSF
shall [assignment: list of actions].
[assignment: list of actions]:
<Action when it is detected>
Deny the access to the secure print file and lock the authentication function for the secure print file.
<Operation for recovering the normal condition>
・Perform the delete function of authentication failure frequency offered within the administrator
mode.
・Reboot the TOE.
Hierarchical to
Dependencies
:
:
No other components
FIA_UAU.1(FIA_UAU.2[4])
Authentication failure handling
FIA_AFL.1[6]
FIA_AFL.1.1[6]
The TSF shall detect when [selection: [assignment: positive integer number], an administrator
configurable positive integer within [assignment: range of acceptable values]] unsuccessful
authentication attempts occur related to [assignment: list of authentication events].
[assignment: list of authentication events].:
Authentication for accessing the public user box
[selection: [assignment: positive integer number], an administrator configurable positive integer
within [assignment: range of acceptable values]]
[assignment: range of acceptable values]:an administrator configurable positive integer within 1~3
FIA_AFL.1.2[6]
When the defined number of unsuccessful authentication attempts has been met or surpassed, the TSF
shall [assignment: list of actions].
[assignment: list of actions]:
<Action when it is detected>
Log off from the authentication status of the user box f it is, and lock the authentication function for
the concerned user box.
<Operation for recovering the normal condition>
・Perform the delete function of authentication failure frequency offered within the administrator
mode.
Hierarchical to
Dependencies
FIA_AFL.1[7]
:
:
No other components
FIA_UAU.1(FIA_UAU.2[5])
Authentication failure handling
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FIA_AFL.1.1[7]
The TSF shall detect when [selection: [assignment: positive integer number], an administrator
configurable positive integer within [assignment: range of acceptable values]] unsuccessful
authentication attempts occur related to [assignment: list of authentication events].
[assignment: list of authentication events]:
・Account authentication: Account authentication when the belonging account of the user who
accesses in the synchronized method is not registered.
・Account authentication: Account authentication of the user who accesses in the method not
synchronized.
[selection: [assignment: positive integer number], an administrator configurable positive integer
within [assignment: range of acceptable values]]
[assignment: range of acceptable values]:an administrator configurable positive integer within 1~3
FIA_AFL.1.2[7]
When the defined number of unsuccessful authentication attempts has been met or surpassed, the TSF
shall [assignment: list of actions].
[assignment: list of actions]:
<Action when it is detected>
Lock the authentication function for the concerned account, and deny the access to the TOE by the
user who permitted the use of the account.
<Operation for recovering the normal condition>
Perform the delete function of authentication failure frequency offered within the administrator
mode.
Hierarchical to
Dependencies
:
:
No other components
FIA_UAU.1(FIA_UAU.2[6])
Authentication failure handling
FIA_AFL.1[8]
FIA_AFL.1.1[8]
The TSF shall detect when [selection: [assignment: positive integer number], an administrator
configurable positive integer within [assignment: range of acceptable values]] unsuccessful
authentication attempts occur related to [assignment: list of authentication events].
[assignment: list of authentication events]:
Authentication when it accesses service mode
Authentication when it accesses administrator mode from the panel
User authentication when user accesses TOE from the panel
Account authentication when user accesses TOE from the panel
Authentication when it accesses secure print file
Authentication when it accesses Public user box from the panel
[selection: [assignment: positive integer number], an administrator configurable positive integer
within [assignment: range of acceptable values]]
[assignment: positive integer number] :1
・
・
・
・
・
・
FIA_AFL.1.2[8]
When the defined number of unsuccessful authentication attempts has been met or surpassed, the TSF
shall [assignment: list of actions].
[assignment: list of actions]:
<Action when it is detected>
Deny all access from the panel.
<Operation for recovering the normal condition>
・ Automatically release the lock after 5 seconds.
Hierarchical to
Dependencies
:
:
No other components
FIA_UAU.1(FIA_UAU.2[1], FIA_UAU.2[2], FIA_UAU.2[3], FIA_UAU.2[4],
FIA_UAU.2[5] , FIA_UAU.2[6])
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User attribute definition
FIA_ATD.1
FIA_ATD.1.1
The TSF shall maintain the following list of security attributes belonging to individual users:
[assignment: list of security attributes].
[assignment: list of security attributes] :
・User box attributes(User box ID)
・File attributes(Secure print internal control ID)
・Account name (Account ID)
Hierarchical to
Dependencies
:
:
No other components
No dependencies
Verification of secrets
FIA_SOS.1[1]
FIA_SOS.1.1[1]
The TSF shall provide a mechanism to verify that secrets (Administrator Password, CE Password)
meet [assignment: a defined quality metric].
[assignment: a defined quality metric]:
・Number of digits: 8- digits
・Character type: ASCII code(0x21 ~ 0x7E, except 0x22 and0x2B)
・Rule :① Do not composed by only the same kind of character strings.
② Do not set the same password as the current setting.
Hierarchical to
Dependencies
:
:
No other components
No dependencies
Verification of secrets
FIA_SOS.1[2]
FIA_SOS.1.1[2]
The TSF shall provide a mechanism to verify that secrets (SNMP Password) meet [assignment: a
defined quality metric].
[assignment: a defined quality metric]:
・Number of digits: 8- digits or more
・Character type: ASCII code 0x20 ~ 0x7E)
Hierarchical to
Dependencies
:
:
No other components
No dependencies
Verification of secrets
FIA_SOS.1[3]
FIA_SOS.1.1[3]
The TSF shall provide a mechanism to verify that secrets (User Password) meet [assignment: a defined
quality metric].
[assignment: a defined quality metric]:
・Number of digits: 8- digits or more
・Character type: ASCII code(0x20~ 0x7E)
・Rule : Do not composed by only the same kind of character strings.
Hierarchical to
Dependencies
FIA_SOS.1[4]
:
:
No other components
No dependencies
Verification of secrets
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FIA_SOS.1.1[4]
The TSF shall provide a mechanism to verify that secrets (HDD Lock Password, Encryption
passphrase) meet [assignment: a defined quality metric].
[assignment: a defined quality metric]:
・Number of digits: 20- digits
・Character type: ASCII code(0x21 ~ 0x7E, except 0x22, 0x28, 0x29, 0x2C, 0x3A, 0x3B, 0x3C, 0x3E,
0x5B, 0x5C and 0x5D)
・Rule :① Do not composed by only the same kind of character strings.
② Do not set the same password or passphrase as the current setting.
Hierarchical to
Dependencies
:
:
No other components
No dependencies
Verification of secrets
FIA_SOS.1[5]
FIA_SOS.1.1[5]
The TSF shall provide a mechanism to verify that secrets (Secure print password) meet [assignment: a
defined quality metric].
[assignment: a defined quality metric]:
・Number of digits: 8- digits
・Character type: ASCII code(0x20 ~ 0x7E, except 0x22 and0x2B)
・Rule : Do not composed by only the same kind of character strings.
Hierarchical to
Dependencies
:
:
No other components
No dependencies
Verification of secrets
FIA_SOS.1[6]
FIA_SOS.1.1[6]
The TSF shall provide a mechanism to verify that secrets (Session Information) meet [assignment: a
defined quality metric].
[assignment: a defined quality metric]:
10 10 and above
Hierarchical to
Dependencies
:
:
No other components
No dependencies
Verification of secrets
FIA_SOS.1[7]
FIA_SOS.1.1[3]
The TSF shall provide a mechanism to verify that secrets (User Box Password, Account Password)
meet [assignment: a defined quality metric].
[assignment: a defined quality metric]:
・Number of digits: 8- digits
・Character type: ASCII code(0x20~ 0x7E)
・Rule : Do not composed by only the same kind of character strings.
Hierarchical to
Dependencies
FIA_SOS.2
:
:
No other components
No dependencies
TSF Generation of secrets
FIA_SOS.2.1
The TSF shall provide a mechanism to generate secrets (Session information) that meet [assignment: a
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defined quality metric.].
[assignment: a defined quality metric.]:
10 10and above
FIA_SOS.2.2
The TSF shall be able to enforce the use of TSF generated secrets for [assignment: list of TSF
functions].
[assignment: list of TSF functions]:
・Administrator authentication(Access through the network)
・User authentication(Access through the network)
・User box authentication(Access through the network)
Hierarchical to
Dependencies
:
:
No other components
No dependencies
User authentication before any action
FIA_UAU.2[1]
FIA_UAU.2.1[1]
The TSF shall require each user (Service Engineer) to be successfully authenticated before allowing
any other TSF-mediated actions on behalf of that user (Service Engineer).
Hierarchical to
:
FIA_UAU.1
Dependencies
:
FIA_UID.1(FIA_UID.2[1])
User authentication before any action
FIA_UAU.2[2]
FIA_UAU.2.1[2]
The TSF shall require each user (Administrator) to be successfully authenticated before allowing any
other TSF-mediated actions on behalf of that user (Administrator).
Hierarchical to : FIA_UAU.1
Dependencies
: FIA_UID.1(FIA_UID.2[2])
User authentication before any action
FIA_UAU.2[3]
FIA_UAU.2.1[3]
The TSF shall require each user (User) to be successfully authenticated before allowing any other
TSF-mediated actions on behalf of that user (User)
Hierarchical to :
FIA_UAU.1
Dependencies
:
FIA_UID.1(FIA_UID.2[3])
User authentication before any action
FIA_UAU.2[4]
FIA_UAU.2.1[4]
The TSF shall require each user (User who is permitted to use secure print file) to be successfully
authenticated before allowing any other TSF-mediated actions on behalf of that user (User who is
permitted to use secure print file)
Hierarchical to
Dependencies
FIA_UAU.2[5]
:
:
FIA_UAU.1
FIA_UID.1(FIA_UID.2[4])
User authentication before any action
FIA_UAU.2.1[5]
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The TSF shall require each user (User who is permitted to use the public user box) to be successfully
authenticated before allowing any other TSF-mediated actions on behalf of that user (User who is
permitted to use the public user box)
Hierarchical to
Dependencies
:
:
FIA_UAU.1
FIA_UID.1(FIA_UID.2[5])
User authentication before any action
FIA_UAU.2[6]
FIA_UAU.2.1[6]
The TSF shall require each user (User who is permitted to use the account) to be successfully
authenticated before allowing any other TSF-mediated actions on behalf of that user (User who is
permitted to use the account)
Hierarchical to
Dependencies
:
:
FIA_UAU.1
FIA_UID.1(FIA_UID.2[6])
Re-authenticating
FIA_UAU.6
FIA_UAU.6.1
The TSF shall re-authenticate the use under the conditions [assignment: list of conditions under which
re-authentication is required].
[assignment: list of conditions under which re-authentication is required]
・When the administrator modifies the administrator password.
・When the service engineer modifies the CE password.
・When the administrator changes the HDD lock setting.
・When the administrator changes the Encryption function setting.
Hierarchical to
Dependencies
:
:
No other components
No dependencies
Protected authentication feedback
FIA_UAU.7
FIA_UAU.7.1
The TSF shall provide only [assignment: list of feedback] to the user while the authentication is in
progress.
[assignment: list of feedback]:
Display “*" every character data input.
Hierarchical to
Dependencies
FIA_UID.2[1]
:
:
No other components
FIA_UAU.1(FIA_UAU.2[1], FIA_UAU.2[2], FIA_UAU.2[3], FIA_UAU.2[4],
FIA_UAU.2[5])
User identification before any action
FIA_UID.2.1[1]
The TSF shall require each user (Service Engineer)to identify itself before allowing any other
TSF-mediated actions on behalf of that user(Service Engineer).
Hierarchical to
: FIA_UID.1
Dependencies
: No dependencies
FIA_UID.2[2]
User identification before any action
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FIA_UID.2.1[2]
The TSF shall require each user (Administrator)to identify itself before allowing any other
TSF-mediated actions on behalf of that user(Administrator).
Hierarchical to
:
FIA_UID.1
Dependencies
:
No dependencies
User identification before any action
FIA_UID.2[3]
FIA_UID.2.1[3]
The TSF shall require each user (User)to identify itself before allowing any other TSF-mediated
actions on behalf of that user(User).
Hierarchical to
: FIA_UID.1
Dependencies
: No dependencies
User identification before any action
FIA_UID.2[4]
FIA_UID.2.1[4]
The TSF shall require each user (User who is permitted to use secure print file)to identify itself before
allowing any other TSF-mediated actions on behalf of that user(User who is permitted to use secure
print file).
Hierarchical to
Dependencies
:
:
FIA_UID.1
No dependencies
User identification before any action
FIA_UID.2[5]
FIA_UID.2.1[5]
The TSF shall require each user (User who is permitted to use the public user box)to identify itself
before allowing any other TSF-mediated actions on behalf of that user(User who is permitted to use
the public user box).
Hierarchical to
Dependencies
:
:
FIA_UID.1
No dependencies
User identification before any action
FIA_UID.2[6]
FIA_UID.2.1[6]
The TSF shall require each user (User who is permitted to use the account)to identify itself before
allowing any other TSF-mediated actions on behalf of that user(User who is permitted to use the
account).
Hierarchical to
Dependencies
FIA_UID.2[7]
:
:
FIA_UID.1
No dependencies
User identification before any action
FIA_UID.2.1[7]
The TSF shall require each user (External Server)to identify itself before allowing any other
TSF-mediated actions on behalf of that user(External Server).
Hierarchical to :
FIA_UID.1
Dependencies
:
No dependencies
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User-subject binding
FIA_USB.1
FIA_USB.1.1
The TSF shall associate the following user security attributes with subjects acting on the behalf of that
user: [assignment; list of user security attributes].
[assignment; list of user security attributes]:
・User box attiributes (User Box ID)
・File attributes (Secure print internal control ID)
・Account Name (account ID)
FIA_USB.1.2
The TSF shall enforce the following rules on the initial association of user security attributes with
subjects acting on the behalf of users: [assignment: rules for the initial assocication of attributes].
[assignment: rules for the initial assocication of attributes]:
<User box attribute>
the user box ID of the concerned user box associates to the task acting on the behalf of users when
authenticated with the access to the user box
<Account Name>
・In the method not synchronized with User authentication, the account ID of the concerned account
associates to the task acting on the behalf of users when authenticated with the access to the
account.
・In the method synchronized with User authentication, the account ID that is set to the concerned
user associates to the task acting on the behalf of users when authenticated with the access to the
user.
<File attribute>
The secure print internal control ID of the concerned secure print file associates to the task acting on
the behalf of users when authenticated with the access to the secure print file.
FIA_USB.1.3
The TSF shall enforce the following rules governing changes to the user security attributes associated
with subjects acting on the behalf of users: [assignment: rules for the changing of attributes].
[assignment: rules for the changing of attributes].
None
Hierarchical to
Dependencies
No other components
FIA_ATD.1
:
:
5.1.1.4. Security management
Management of security functions behavior
FMT_MOF.1[1]
FMT_MOF.1.1[1]
The TSF shall restrict the ability to [selection: determine the behavior of, disable, enable, modify the
behavior of] the functions [assignment: list of functions] to [assignment: the authorized identified roles].
[assignment: list of functions] :
・Enhanced Security Setting
[selection: determine the behavior of, disable, enable, modify the behavior of] :
disable
[assignment: the authorized identified roles] :
・Administrator
・Service Engineer
Hierarchical to
Dependencies
:
:
No other components
FMT_SMF.1(FMT_SMF.1), FMT_SMR.1(FMT_SMR.1[1], FMT_SMR.1[2])
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Management of security functions behavior
FMT_MOF.1[2]
FMT_MOF.1.1[2]
The TSF shall restrict the ability to [selection: determine the behavior of, disable, enable, modify the
behavior of] the functions [assignment: list of functions] to [assignment: the authorized identified roles].
[assignment: list of functions]:
・User Authentication Function
・SNMP password authentication function
[selection: determine the behavior of, disable, enable, modify the behavior of] :
modify the behavior of
[assignment: the authorized identified roles] :
Administrator
Hierarchical to
Dependencies
:
:
No other components
FMT_SMF.1(FMT_SMF.1), FMT_SMR.1(FMT_SMR.1[2])
Management of security functions behavior
FMT_MOF.1[3]
FMT_MOF.1.1[3]
The TSF shall restrict the ability to [selection: determine the behavior of, disable, enable, modify the
behavior of] the functions [assignment: list of functions] to [assignment: the authorized identified roles].
[assignment: list of functions]:
・Account Authentication Function
[selection: determine the behavior of, disable, enable, modify the behavior of] :
disable, modify the behavior of
[assignment: the authorized identified roles] :
Administrator
Hierarchical to
Dependencies
:
:
FMT_MSA.1[1]
No other components
FMT_SMF.1(FMT_SMF.1), FMT_SMR.1(FMT_SMR.1[2])
Management of security attributes
FMT_MSA.1.1[1]
The TSF shall enforce the [assignment: access control SFP, information flow control SFP] to restrict the
ability to [selection: change_default, query, modify, delete, [assignment: other operations]] the security
attributes [assignment: list of security attributes] to [assignment: the authorized identified roles].
[assignment: list of security attributes]:
User attributes of the user box that is set user's own [user ID].
[selection: change_default, query, modify, delete, [assignment: other operations]]:
Modify(modify to other user’s [User ID], [account ID] or [public])
[assignment: the authorized identified roles]:
・User
・Administrator
[assignment: access control SFP, information flow control SFP]:
User box access control
Hierarchical to
Dependencies
FMT_MSA.1[2]
:
:
No other components
FDP_ACC.1 or FDP_IFC.1(FDP_ACC.1[1]), FMT_SMF.1(FMT_SMF.1),
FMT_SMR.1(FMT_SMR.1[2], FMT_SMR.1[3])
Management of security attributes
FMT_MSA.1.1[2]
The TSF shall enforce the [assignment: access control SFP, information flow control SFP] to restrict the
ability to [selection: change_default, query, modify, delete, [assignment: other operations]] the security
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attributes [assignment: list of security attributes] to [assignment: the authorized identified roles].
[assignment: list of security attributes]:
User attributes of user box that is set the [public].
[selection: change_default, query, modify, delete, [assignment: other operations]]:
modify(modify to [User ID] or [account ID])
[assignment: the authorized identified roles]:
・User who is permitted to use that public user box
・Administrator
[assignment: access control SFP, information flow control SFP]:
User box access control
Hierarchical to
Dependencies
:
:
FMT_MSA.1[3]
No other components
FDP_ACC.1 or FDP_IFC.1(FDP_ACC.1[1]), FMT_SMF.1(FMT_SMF.1),
FMT_SMR.1(FMT_SMR.1[2], FMT_SMR.1[4])
Management of security attributes
FMT_MSA.1.1[3]
The TSF shall enforce the [assignment: access control SFP, information flow control SFP] to restrict the
ability to [selection: change_default, query, modify, delete, [assignment: other operations]] the security
attributes [assignment: list of security attributes] to [assignment: the authorized identified roles].
[assignment: list of security attributes]:
User attributes of user box that is set the [Account ID].
[selection: change_default, query, modify, delete, [assignment: other operations]]:
modify(modify to [user ID], [public] or other [account ID])
[assignment: the authorized identified roles]:
・User who is permitted to use that account
・Administrator
[assignment: access control SFP, information flow control SFP]:
User box access control
Hierarchical to
Dependencies
:
:
FMT_MSA.3[1]
No other components
FDP_ACC.1 or FDP_IFC.1(FDP_ACC.1[1]), FMT_SMF.1(FMT_SMF.1),
FMT_SMR.1(FMT_SMR.1[2], FMT_SMR.1[6])
Static attribute initialization
FMT_MSA.3.1[1]
The TSF shall enforce the [assignment: access control SFP, information flow control SFP] to provide
[selection, choose one of: restrictive, permissive, [assignment: other property]] default values for
security attributes (User attributes of the user box) that are used to enforce the SFP.
[selection, choose one of: restrictive, permissive, [assignment: other property]]:
[assignment: other property]:
Responded the registered situation of the user box classified into the following cases.
① [Public], when an user box is registered by the operation of user or administrator
② [User ID] of the user who performed the relevant job, when an user box is registered
automatically according to the operation of stored job specifying unregistered user box.
[assignment: access control SFP, information flow control SFP]:
User box access control
FMT_MSA.3.2[1]
The TSF shall allow the [assignment: the authorized identified roles] to specify alternative initial
values to override the default values when an object or information is created.
[assignment: the authorized identified roles]
Case ① identified in [assignment: other property] of FMT_MSA.3.1
Case ② identified in [assignment: other property] of FMT_MSA.3.1
Hierarchical to
:
: User
: None
No other components
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Dependencies
:
FMT_MSA.3[2]
FMT_MSA.1(FMT_MSA.1[1], FMT_MSA.1[2]), FMT_SMR.1(FMT_SMR.1[3])
Static attribute initialization
FMT_MSA.3.1[2]
The TSF shall enforce the [assignment: access control SFP, information flow control SFP] to provide
[selection, choose one of: restrictive, permissive, [assignment: other property]] default values for
security attributes (Secure print internal control ID) that are used to enforce the SFP.
[selection, choose one of: restrictive, permissive, [assignment: other property]]:
[assignment: other property]:Identified uniquely
[assignment: access control SFP, information flow control SFP]:
Secure print file access control
FMT_MSA.3.2[2]
The TSF shall allow the [assignment: the authorized identified roles] to specify alternative initial
values to override the default values when an object or information is created.
[assignment: the authorized identified roles]
None
Hierarchical to
Dependencies
:
:
No other components
FMT_MSA.1(N/A), FMT_SMR.1(N/A)
Management of TSF data
FMT_MTD.1[1]
FMT_MTD.1.1[1]
(When the [machine authentication] is selected as the User authentication method)The TSF shall
restrict the ability to [selection: change_default, query, modify, delete, clear, [assignment: other
operations]] the [assignment: list of TSF data] to [assignment: the authorized identified roles].
[assignment: list of TSF data]:
User password
[selection: change_default, query, modify, delete, clear, [assignment: other operations]]:
[assignment: other operations] :Registration
[assignment: the authorized identified roles]:
Administrator
Hierarchical to
Dependencies
:
:
No other components
FMT_SMF.1(FMT_SMF.1), FMT_SMR.1(FMT_SMR.1[2])
Management of TSF data
FMT_MTD.1[2]
FMT_MTD.1.1[2]
(When the [machine authentication] is selected as the User authentication method)The TSF shall
restrict the ability to [selection: change_default, query, modify, delete, clear, [assignment: other
operations]] the [assignment: list of TSF data] to [assignment: the authorized identified roles].
[assignment: list of TSF data]:
User’s own user password
[selection: change_default, query, modify, delete, clear, [assignment: other operations]]:
modify
[assignment: the authorized identified roles]:
・User
・Administrator
Hierarchical to
Dependencies
:
:
No other components
FMT_SMF.1(FMT_SMF.1), FMT_SMR.1(FMT_SMR.1[2], FMT_SMR.1[3])
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Management of TSF data
FMT_MTD.1[3]
FMT_MTD.1.1[3]
The TSF shall restrict the ability to [selection: change_default, query, modify, delete, clear, [assignment:
other operations]] the [assignment: list of TSF data] to [assignment: the authorized identified roles].
[assignment: list of TSF data]:
User ID
Account ID
Account password
SNMP password
Secure print password
Panel auto log-off time
Threshold Number of authentication failure
External server authentication setting data
S/MIME certificate 5
Transmission address data
Trusted Channel function setting data
Belonging Account of User
Administrator authentication lock time
[selection: change_default, query, modify, delete, clear, [assignment: other operations]]:
modify
[assignment: the authorized identified roles]:
Administrator
・
・
・
・
・
・
・
・
・
・
・
・
・
Hierarchical to
Dependencies
:
:
No other components
FMT_SMF.1(FMT_SMF.1), FMT_SMR.1(FMT_SMR.1[2])
Management of TSF data
FMT_MTD.1[4]
FMT_MTD.1.1[4]
The TSF shall restrict the ability to [selection: change_default, query, modify, delete, clear, [assignment:
other operations]] the [assignment: list of TSF data] to [assignment: the authorized identified roles].
[assignment: list of TSF data]:
User box password of the relevant user box
[selection: change_default, query, modify, delete, clear, [assignment: other operations]]:
modify
[assignment: the authorized identified roles]:
・User who is permitted to use that public user box
・Administrator
Hierarchical to
:
No other components
Dependencies
:
FMT_SMF.1(FMT_SMF.1), FMT_SMR.1(FMT_SMR.1[2], FMT_SMR.1[4])
FMT_MTD.1[5]
Management of TSF data
FMT_MTD.1.1[5]
The TSF shall restrict the ability to [selection: change_default, query, modify, delete, clear,
[assignment: other operations]] the [assignment: list of TSF data] to [assignment: the authorized
identified roles].
[assignment: list of TSF data]:
User box password
[selection: change_default, query, modify, delete, clear, [assignment: other operations]]:
[assignment: other operations]:Registration
5
It intends the operation of replacing a settable digital certificate for each user in stead of the modification of the
value itself.
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[assignment: the authorized identified roles]:
・User
・Administrator
Hierarchical to
Dependencies
No other components
FMT_SMF.1(FMT_SMF.1), FMT_SMR.1(FMT_SMR.1[2], FMT_SMR.1[3])
:
:
Management of TSF data
FMT_MTD.1[6]
FMT_MTD.1.1[6]
The TSF shall restrict the ability to [selection: change_default, query, modify, delete, clear,
[assignment: other operations]] the [assignment: list of TSF data] to [assignment: the authorized
identified roles].
[assignment: list of TSF data]:
・Administrator password
[selection: change_default, query, modify, delete, clear, [assignment: other operations]]:
modify
[assignment: the authorized identified roles]:
・Administrator
・Service Engineer
Hierarchical to
Dependencies
:
:
No other components
FMT_SMF.1(FMT_SMF.1), FMT_SMR.1(FMT_SMR.1[1], FMT_SMR.1[2])
Management of TSF data
FMT_MTD.1[7]
FMT_MTD.1.1[7]
The TSF shall restrict the ability to [selection: change_default, query, modify, delete, clear,
[assignment: other operations]] the [assignment: list of TSF data] to [assignment: the authorized
identified roles].
[assignment: list of TSF data]:
SNMP password
User password
Account password
User box password
Secure print password
[selection: change_default, query, modify, delete, clear, [assignment: other operations]]:
query
[assignment: the authorized identified roles]:
・Administrator
・
・
・
・
・
Hierarchical to
Dependencies
:
:
No other components
FMT_SMF.1(FMT_SMF.1), FMT_SMR.1(FMT_SMR.1[2])
Management of TSF data
FMT_MTD.1[8]
FMT_MTD.1.1[8]
The TSF shall restrict the ability to [selection: change_default, query, modify, delete, clear,
[assignment: other operations]] the [assignment: list of TSF data] to [assignment: the authorized
identified roles].
[assignment: list of TSF data]:
Secure print password
[selection: change_default, query, modify, delete, clear, [assignment: other operations]]:
[assignment: other operations]:Registration
[assignment: the authorized identified roles]:
User
Hierarchical to
:
No other components
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Dependencies
:
FMT_SMF.1(FMT_SMF.1), FMT_SMR.1(FMT_SMR.1[3])
Management of TSF data
FMT_MTD.1[9]
FMT_MTD.1.1[9]
The TSF shall restrict the ability to [selection: change_default, query, modify, delete, clear,
[assignment: other operations]] the [assignment: list of TSF data] to [assignment: the authorized
identified roles].
[assignment: list of TSF data]:
CE password
CE authentication lock time
[selection: change_default, query, modify, delete, clear, [assignment: other operations]]:
modify
[assignment: the authorized identified roles]:
Service Engineer
Hierarchical to
Dependencies
:
:
No other components
FMT_SMF.1(FMT_SMF.1), FMT_SMR.1(FMT_SMR.1[1])
Management of TSF data
FMT_MTD.1[10]
FMT_MTD.1.1[10]
The TSF shall restrict the ability to [selection: change_default, query, modify, delete, clear, [assignment:
other operations]] the [assignment: list of TSF data] to [assignment: the authorized identified roles].
[assignment: list of TSF data]:
User ID
[selection: change_default, query, modify, delete, clear, [assignment: other operations]]:
[assignment: other operations]:Registration
[assignment: the authorized identified roles]:
Administrator, External server
Hierarchical to
Dependencies
:
:
No other components
FMT_SMF.1(FMT_SMF.1), FMT_SMR.1(FMT_SMR.1[2], FMT_SMR.1[5])
Management of TSF data
FMT_MTD.1[11]
FMT_MTD.1.1[11]
The TSF shall restrict the ability to [selection: change_default, query, modify, delete, clear, [assignment:
other operations]] the [assignment: list of TSF data] to [assignment: the authorized identified roles].
[assignment: list of TSF data]:
Administrator password, SNMP password
[selection: change_default, query, modify, delete, clear, [assignment: other operations]]:
[assignment: other operations]:Initialization
[assignment: the authorized identified roles]:
Administrator, Service Engineer
Hierarchical to
Dependencies
FMT_MTD.1[12]
:
:
No other components
FMT_SMF.1(FMT_SMF.1), FMT_SMR.1(FMT_SMR.1[1], FMT_SMR.1[2])
Management of TSF data
FMT_MTD.1.1[12]
The TSF shall restrict the ability to [selection: change_default, query, modify, delete, clear, [assignment:
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other operations]] the [assignment: list of TSF data] to [assignment: the authorized identified roles].
[assignment: list of TSF data]:
・ Account ID
・ Account password
・ S/MIME certificate
・ Transmission address data
・ Trusted channel function setting data
[selection: change_default, query, modify, delete, clear, [assignment: other operations]]:
[assignment: other operations]:Registration
[assignment: the authorized identified roles]:
Administrator
Hierarchical to
Dependencies
:
:
No other components
FMT_SMF.1(FMT_SMF.1), FMT_SMR.1(FMT_SMR.1[2])
Management of TSF data
FMT_MTD.1[13]
FMT_MTD.1.1[11]
The TSF shall restrict the ability to [selection: change_default, query, modify, delete, clear, [assignment:
other operations]] the [assignment: list of TSF data] to [assignment: the authorized identified roles].
[assignment: list of TSF data]:
Belonging Account of a user oneself
[selection: change_default, query, modify, delete, clear, [assignment: other operations]]:
[assignment: other operations]:Registration
[assignment: the authorized identified roles]:
Administrator, the user who is permitted to use of the account 6
Hierarchical to
Dependencies
FMT_SMF.1
:
:
No other components
FMT_SMF.1(FMT_SMF.1), FMT_SMR.1(FMT_SMR.1[2], FMT_SMR.1[6])
Specification of Management Functions
FMT_SMF.1.1
The TSF shall be capable of performing the following security management functions: [assignment: list
of security management functions to be provided by the TSF].
[assignment: list of security management functions to be provided by the TSF]:
・Stop Function of Enhanced security function by administrator
・Operation Method Setting Function of User Authentication Function by administrator
・Operation Method Setting Function of Account Authentication Function by administrator
・Operation Setting Function of SNMP password authentication function by administrator
・Setting function of authentication failure frequency threshold by administrator in the
authentication operation prohibition function
・Backup Function by administrator 7
・Restoration Function by administrator 8
・Registration function of account ID by administrator
・Modification function of account ID by administrator
・Panel Auto Log-off Time Setting Function by administrator
・Deletion Function of detected value of unauthorized access to SNMP by administrator
・Deletion Function of detected value of unauthorized access of user by administrator
・Deletion function of detected value of unauthorized access to secure print by administrator
・Deletion function of detected value of unauthorized access to user box by administrator
・Deletion function of detected value of unauthorized access to account by administrator
・Modification function of administrator password by administrator
6
A user who isn’t related with an account name, and who was informed of the account password for the account
ID from the administrator off-line.
7
A part of a backup function corresponds to the inquiry function of TSF data.
8
A part of the restoration function corresponds to the modification function of the TSF data.
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・Modification function of SNMP password by administrator
・Modification function of user password by administrator
・Registration function of user box password by administrator
・Modification function of user box password by administrator
・User box registration function by administrator (However, only when the [public] is registered for
user attribute.)
・Modification function of user attribute of the user box by the administrator (However, only when
the user attribute of previous setting is "user ID")
・Registration function of user ID by administrator
・Registration function of user password when method of user authentication by administrator is
machine authentication
・Modification function of user password when method of user authentication by administrator is
machine authentication
・Initialization function of administrator password by administrator
・Initialization function of SNMP password by administrator
・Registration function of S/MIME certificate by administrator
・Registration modification function of S/MIME certificate by administrator
・Operation setting function of S/MIME function by administrator
・Registration function of transmission address data by administrator
・Modification function of transmission address data by administrator
・Registration function of Trusted Channel function setting data by administrator
・Modification function of Trusted Channel function setting data by administrator
・Operation setting function of Trusted Channel function setting data by administrator
・Registration function of Belonging Account of user by administrator
・Modification function of Belonging Account of user by administrator
・Modification function of Administrator authentication lock time by administrator
・Modification function of service engineer password by service engineer
・Modification function of administrator password by service engineer
・Stop function of Enhanced Security function by service engineer
・Initialization function of administrator password by service engineer
・Initialization function of SNMP password by service engineer
・Deletion function of detected value of unauthorized access to administrator by service engineer
・Modification function of CE authentication lock time by service engineer
・Overwrite function for the default value of the user attribute of the user box by the user.
・Modification function of user password when method of user authentication is machine
authentication by user
・Registration function of user box password by user
・Modification function of user attribute of user box by user
・Registration function of Belonging Account of user oneself by user who is permitted the use of the
account
・User box registration function by user
・Automatic Personal user box registration function by user box stored job that specifies unregistered
box by user
・Machine non-registered users' user ID automatic registration function with external server when
user authentication method is external server authentication
・Registration function of secure print password according to secure print file registration by user
・Modification function of user attribute of user box by user who is permitted the use of public user
box
・Modification function of user box password of the user box by user who is permitted the use of
public user box
・Modification function of the concerned user box’s user attribute by user who is permitted the use of
the group box
Hierarchical to
Dependencies
FMT_SMR.1[1]
:
:
No other components
No dependencies
Security roles
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FMT_SMR.1.1[1]
The TSF shall maintain the roles [assignment: the authorized identified roles].
[assignment: the authorized identified roles] :
Service Engineer
FMT_SMR.1.2[1]
The TSF shall be able to associate users with roles.
Hierarchical to
: No other components
Dependencies
: FIA_UID.1(FIA_UID.2[1])
FMT_SMR.1[2]
Security roles
FMT_SMR.1.1[2]
The TSF shall maintain the roles [assignment: the authorized identified roles].
[assignment: the authorized identified roles] :
Administrator
FMT_SMR.1.2[2]
The TSF shall be able to associate users with roles.
Hierarchical to
: No other components
Dependencies
: FIA_UID.1(FIA_UID.2[2])
FMT_SMR.1[3]
Security roles
FMT_SMR.1.1[3]
The TSF shall maintain the roles [assignment: the authorized identified roles].
[assignment: the authorized identified roles] :
User
FMT_SMR.1.2[3]
The TSF shall be able to associate users with roles.
Hierarchical to
: No other components
Dependencies
: FIA_UID.1(FIA_UID.2[3])
FMT_SMR.1[4]
Security roles
FMT_SMR.1.1[4]
The TSF shall maintain the roles [assignment: the authorized identified roles].
[assignment: the authorized identified roles]:
User who is authorized to use that public user box
FMT_SMR.1.2[4]
The TSF shall be able to associate users with roles.
Hierarchical to
: No other components
Dependencies
: FIA_UID.1(FIA_UID.2[5])
FMT_SMR.1[5]
Security roles
FMT_SMR.1.1[5]
The TSF shall maintain the roles [assignment: the authorized identified roles].
[assignment: the authorized identified roles] :
External server
FMT_SMR.1.2[5]
The TSF shall be able to associate users with roles.
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Hierarchical to
Dependencies
No other components
FIA_UID.1(FIA_UID.2[7])
:
:
Security roles
FMT_SMR.1[6]
FMT_SMR.1.1[6]
The TSF shall maintain the roles [assignment: the authorized identified roles].
[assignment: the authorized identified roles] :
The user who is permitted to use of the account
FMT_SMR.1.2[6]
The TSF shall be able to associate users with roles.
Hierarchical to
: No other components
Dependencies
: FIA_UID.1(FIA_UID.2[6])
5.1.1.5. Protection of the TSF
Non-bypassability of the TSP
FPT_RVM.1
FPT_RVM.1.1
The TSF shall ensure that TSP enforcement functions are invoked and succeed before each function
within the TSC is allowed to proceed.
Hierarchical to
: No other components
Dependencies
: No dependencies
TSF domain separation
FPT_SEP.1
FPT_SEP.1.1
The TSF shall maintain a security domain for its own execution that protects it from interference and
tampering by untrusted subjects.
FPT_SEP.1.2
The TSF shall enforce separation between the security domains of subjects in the TSC.
Hierarchical to
: No other components
Dependencies
: No dependencies
5.1.1.6. TOE Access
FTA_SSL.3
TSF-initiated termination
FTA_SSL.3.1
The TSF shall terminate an interactive session after a [assignment: time interval of user inactivity].
[assignment: time interval of user inactivity]:
Time decided from the final operation depending on the panel auto logoff time (1-9 minute/s) while a
administrator or a user is operating on the panel
Hierarchical to
Dependencies
:
:
No other components
No dependencies
5.1.1.7. Trusted pass/channel
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FTP_ITC.1
Inter-TSF trusted channel
FTP_ITC.1.1
The TSF shall provide a communication channel between itself and a remote trusted IT product that is
logically distinct from other communication channels and provides assured identification of its end
points and protection of the channel data from modification or disclosure.
FTP_ITC.1.2
The TSF shall permit [selection : the TSF, the remote trusted IT product] to initiate communication via
the trusted channel.
[selection : the TSF, the remote trusted IT product]
The remote trusted IT product
FTP_ITC.1.3
The TSF shall initiate communication via the trusted channel for [assignment : list of functions for
which a trusted channel is required].
[assignment : list of functions for which a trusted channel is required]
・Download of the user box file.
・Upload of the image file that will be stored as a user box file.
・Upload of the image file that will be the secure print file.
Hierarchical to
Dependencies
:
:
No other components
No dependencies
5.1.1.8. Extended requirement: Identification and approval of access destination
FIA_NEW.1
Identification and approval of a user becoming an access object
from TOE
FIA_NEW.1.1
TSF shall demand to succeed in the user's identification before the action is taken to user (HDD) by
TOE.
FIA_NEW.1.2
TSF shall stop the start of the action to user (HDD) by TOE if the user's identification is failed.
Hierarchical to
: No other components
Dependencies
: No dependencies
Audit:FIA_NEW.1
The following actions should be auditable if FAU_GEN Security audit data generation is included in the
PP/ST.
a) Minimal
unsuccessful use of user identification mechanism including offered user identification
information
b) Basic
Use all of user identification mechanism including offered user deification
information
Management:FIA_NEW.1
The following actions could be considered for the management functions in FMT.
a) management of user identification information
5.1.1.9. Extended requirement: Remaining information protection after the explicit deletion operation
FNEW_RIP.1
Protection of remaining information on the user data and TSF data
after explicit deletion operation
FNEW_RIP.1.1
TSF shall guarantee not to be able to use the content of any information before having been assigned
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to the resource on the explicit deleting operation to the following objects and the TSF data:
[assignment: list of object and list of TSF data].
[assignment : List of object and list of TSF data]:
<Objects>
・User Box file
・Secure print file
・On memory image file
・Stored image file
・Remaining image file
・Image-related file
・Transmission addressee data file
・HDD lock password object
・Encryption passphrase object
<TSF data>
・Administrator password
・SNMP password
・User ID
・User password
・User Box password
・Secure print password
・Account ID
・Account password
・S/MIME certificate
・Trusted Channel setting data
・Remaining TSF data 9
Hierarchical to
Dependencies
:
:
No other components
No dependencies
Audit:FNEW_RIP.1
Use including the information of user identification performing the explicit deletion operation.
Management:FNEW_RIP.1
There is no foreseen management activity.
5.1.2. Minimum Security Strength of Function
The minimum strength of function level of the TOE is SOF-Basic. The required TOE security
functions that use a probabilistic/permutational mechanism are FIA_UAU.2[1], FIA_UAU.2[2],
FIA_UAU.2[3], FIA_UAU.2[4], FIA_UAU.2[5], FIA_UAU.2[6], FIA_UAU.6, FIA_SOS.1[1],
FIA_SOS.1[2], FIA_SOS.1[3], FIA_SOS.1[4], FIA_SOS.1[5], FIA_SOS.1[6], FIA_SOS.1[7] and
FIA_SOS.2.
Cryptographic key generation algorithm of FMT_CKM.1 and cryptographic algorithm of
FCS_COP.1 are not included in the object of the minimum strength of function level.
5.1.3. TOE Security Assurance Requirements
The TOE is a commercial office product that is used in a general office environment, and
therefore a TOE security assurance requirement that is required for EAL3 conformance, which
is a sufficient level as an assurance for commercial office products, is applied. The following table
summarizes the applied TOE security assurance requirements.
9
TSF data remaining in the HDD data area, that cannot be deleted only by the deletion of the file
management area.
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Table 6 TOE Security Assurance Requirements
TOE Security Assurance Requirements
Class ACM:
CM capabilities
Component
ACM_CAP.3
Configuration management
CM scope
ACM_SCP.1
Class ADO:
Delivery
ADO_DEL.1
Installation, generation and start-up
ADO_IGS.1
Function specification
ADV_FSP.1
High-level design
ADV_HLD.2
Representation correspondence
ADV_RCR.1
Delivery and Operation
Class ADV:
Development
Class AGD:
Guidance Documents
Class ALC:
Administrator guidance
AGD_ADM.1
User guidance
AGD_USR.1
Development security
ALC_DVS.1
Coverage
ATE_COV.2
Depth
ATE_DPT.1
Life Cycle Support
Class ATE:
Tests
Class AVA:
Vulnerability Assessment
Functional tests
ATE_FUN.1
Independent testing
ATE_IND.2
Misuse
AVA_MSU.1
Strength of TOE security functions
AVA_SOF.1
Vulnerability analysis
AVA_VLA.1
5.2. Security Requirements for the IT environment
5.2.1. Cryptographic support
FCS_COP.1[E]
Cryptographic operation
FCS_COP.1.1[E]
The TSF(Encryption board), shall perform [assignment: list of cryptographic operations] in accordance
with a specified cryptographic algorithm [assignment: cryptographic algorithm] and cryptographic key
sizes [assignment: cryptographic key sizes] that meet the following: [assignment: list of standards].
[assignment: list of standards]:
FIPS PUB 197
[assignment: cryptographic algorithm]:
AES
[assignment: cryptographic key sizes]:
128bit
[assignment: list of cryptographic operations]:
・Encryption of all data written in HDD
・Decryption of all data read from HDD
Hierarchical to
Dependencies
:
:
No other components
FDP_ITC.1 or FCS_CKM.1(FCS_CKM.1), FCS_CKM.4(N/A),
FMT_MSA.2(N/A)
5.2.2. Identification and Authentication
FIA_AFL.1[E]
Authentication failure handling
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FIA_AFL.1.1[E]
The TSF(HDD)shall detect when [selection: [assignment: positive integer number], an administrator
configurable positive integer within [assignment: range of acceptable values]] unsuccessful
authentication attempts occur related to [assignment: list of authentication events].
[assignment: list of authentication events] :
Authentication by HDD Lock function at the time of accessing HDD
[selection: [assignment: positive integer number], an administrator configurable positive integer
within [assignment: range of acceptable values]]
[assignment: positive integer number] :5
FIA_AFL.1.2[E]
When the defined number of unsuccessful authentication attempts has been met or surpassed, the TSF
shall [assignment: list of actions].
[assignment: list of actions]:
<Action when it is detected>
Deny the reading and writing of data to HDD.
<Operation for recovering the normal condition>
Turn off electricity to HDD(Power OFF)
Hierarchical to
Dependencies
:
:
No other components
FIA_UAU.1(FIA_UAU.2[E])
User authentication before any action
FIA_UAU.2[E]
FIA_UAU.2.1[E]
The TSF(HDD) shall require each user (The main body of MFP where HDD installed) to be
successfully authenticated before allowing any other TSF-mediated actions on behalf of that user(The
main body of MFP where HDD installed).
Hierarchical to :
FIA_UAU.1
Dependencies
:
FIA_UID.1(N/A)
FIA_UAU.7[E]
Protected authentication feedback
FIA_UAU.7.1[E]
The TSF(PC application) shall provide only [assignment: list of feedback] to the user while the
authentication is in progress.
[assignment: list of feedback] :
display "*" in every character data input
Hierarchical to
Dependencies
:
:
No other components
FIA_UAU.1(FIA_UAU.2[2], FIA_UAU.2[3], FIA_UAU.2[5])
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6. TOE Summary Specification
6.1. TOE Security Functions
The list of the TOE security function led from the TOE security function requirement is shown
in the following Tables7. The detailed specification is explained in the paragraphs described
below.
Table 7 The list of the name and identifier of TOE Security function
No.
1
2
3
4
5
6
7
8
9
10
11
12
TOE Security Function
F.ADMIN
F.ADMIN-SNMP
F.SERVICE
F.USER
F.BOX
F.PRINT
F.OVERWRITE-ALL
F.CRYPT
F.HDD
F.RESET
F-TRUSTED-PASS
F.S/MIME
Administrator function
SNMP administrator function
Service mode function
User function
User box function
Secure print function
Overwrite all area function
Encryption key generation function
HDD validation function
Authentication Failure Reset function
Trusted Channel function
S/MIME encryption processing function
6.1.1. F.ADMIN(Administrator Function)
F.ADMIN is a series of security function that administrator operates, such as an administrator
identification authentication function in an administrator mode accessing from a panel or
through a network, and a security management function that includes a change of an
administrator password and a lock cancellation of a locked user box. (Nevertheless, all functions
are not feasible functions through both a panel and a network.)
6.1.1.1. Administrator identification authentication function
It identifies and authenticates the accessing user as the administrator in response to the
access request to the administrator mode.
z Offers the administrator authentication mechanism authenticating by the administrator
password that consists of the character shown in Table 8.
¾ Offers the administrator authentication mechanism using the session information besides
the administrator password, after the administrator is authenticated to the access from
the network,
¾ According to protocol, use the session information of more than 1010, or generate and use
the session information more than 1010.
z Return “*" for each character as feedback for the entered administrator password.
z Resets the number of authentication failure when succeeding in the authentication.
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z In the case of access from a panel, it doesn't accept the input from a panel for five seconds
when failing in the authentication.
z Locks all the authentication functions to use the administrator password when detecting the
authentication failure that becomes 1~3 times at total in each authentication function by
using the administrator password. (Refuse the access to the administrator mode)
¾
The administrator specifies the failure frequency threshold by the unauthorized access
detected threshold setting function.
z F.RESET works and the lock release function of the administrator authentication function in
F.SERVICE is carried out, and the lock of authentication function is released.
Table 8 character and number of digits used for password
Objectives
Number
Characters
of digits
CE Password
8-digits
92 characters in total can be selected
ASCII code(0x21 - 0x7E, except 0x22 and 0x2B)
・Number:0 - 9
・Alphabet:Capital letter and small letter
・Symbols:!, #, $, %, &, ' ,
Administrator Password
Secure Print Password
(, ), *,
, , - , . , / , : , ; , <, =, >, ?, @,
[,¥,],^,_,`,{,|,},~
8-digits
93 characters in total can be selected
ASCII code(0x20 - 0x7E, except 0x22 and 0x2B)
・Number:0 - 9
・Alphabets:Capital letter and small letter
・Symbols:! , # , $ , % , & , ' , ( , ) , * , , , - , . , / , : , ; , < , = , > , ? ,
@ , [ , ¥ , ] , ^ , _ , ` , { , | , } , ~ , SPACE
HDD Lock Password
20-digits
83 characters in total can be selected
ASCII code(0x21-0x7E, except 0x22, 0x28, 0x29, 0x2C, 0x3A,
0x3B, 0x3C, 0x3E, 0x5B, 0x5C and 0x5D)
・Number:0 - 9
Encryption passphrase
・ Alphabets:Capital letter and small letter
・ Symbols:! ,
# , $ , % , & ,’, * , + , - , . ,
=, ?, @, ^, _ , ` , { , | , } ,
SNMP Password
8-digits or
95 characters in total can be selected
・Privacy Password
more
ASCII code(0x20 - 0x7E)
・Authentication Password
・Number:0 - 9
・Alphabets:Capital letter and small letter
User Password
Account Password
/,
~
・Symbols:! , # , $ , % , & , ' , ( , ) , * , , , - , . , / , : , ; , < , = , > , ? ,
8-digits
@ , [ , ¥ , ] , ^ , _ , ` , { , | , } , ~ , ” , + , SPACE
User Box Password
6.1.1.2. Auto logoff function of administrator mode
While accessing an administrator mode from a panel, if not accepting any operation during the
panel automatic logoff time, it logs off the administrator mode automatically.
6.1.1.3. Function offered in Administrator mode
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When a user is identified and authenticated as an administrator by the administrator
identification authentication function at the accessing request to the administrator mode, the
administrator authority is associated with the task substituting the user. And the following
operations and the use of the functions are permitted.
① Change of Administrator password
When a user is re-authenticated as an administrator by the panel and the new password
satisfies the quality, the password is changed.
¾ Offers the administrator authentication mechanism that is authenticated by the
administrator password which consists of the character shown in Table8.
¾ Resets the number of authentication failure when succeeding in the re-authentication.
¾ Return “*" for each character as feedback for the entered administrator password in the
re-authentication by the access from the panel.
¾ When the authentication failure that becomes 1-3 times at total in each authentication
function by using the administrator password is detected, it logoffs the administrator mode
accessing from the panel, and locks all the authentication functions to use the
administrator password. (The access to the administrator mode is refused.)
•
The administrator specifies the failure frequency threshold by the unauthorized access
detection threshold setting function.
¾ F.RESET works or the lock release function of the administrator authentication function in
F.SERVICE is carried out, so that the lock of the authentication function is released.
¾ Verify the new administrator password if the following qualities are satisfied.
•
It is composed of the characters and by the number of digits, shown in the Table 8.
•
It shall not be composed of one kind of character.
•
It doesn't match with the current value.
② User Settings
¾ User Registration (Only the user who uses with the machine authentication as User
authentication method.)
User is registered by setting the user ID (Though user ID is composed of the user name
and the authentication server information 10, only user name is registered in case of the
machine authentication.) and registering the user password. It verifies whether the user
password newly set have been satisfied the following qualities.
・ It is composed of the characters and by the number of digits, shown in the Table 6.
・ It shall not be composed of one kind of character.
While the external server authentication is effective, the user password cannot be
registered.
Also register the belonging account (account ID), and relate. (The account setting is
necessary beforehand.)
¾ Change of user password (Only the user who uses with the machine authentication as User
authentication method.)
User password is changed. It verifies whether the user password newly set have been
satisfied the following qualities.
10
It associates with the external server authentication setting data that is set in the case of the use of the
external server (only Active Directly method is applicable) as the method of the user authentication function.
Because it deals when there are plural user information management servers, there is the case which plural
authentication server information are included in the external server information setting data.
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・ It is composed of the characters and by the number of digits, shown in the Table 8.
・ It shall not be composed of one kind of character.
While the external server authentication is effective, the user ID and the user password
cannot be changed, same as the user registration.
¾ User deletion
User ID and user password is deleted.
・ When a personal user box that a concerned user owns exists, that personal user box is
automatically set to the public user box of “user attributes: public.”
¾ Change of the belonging account
The belonging account that related to user is changed
③ User Box Settings
¾ User Box Registration
To register a personal user box or a public user box by selecting the user attribute to the
non-registration user box ID selected. When it’s registered, it is possible to select "User ID"
in the user attribute of the user box which have been specified "Public" as a default value.
・ In the case of the personal user box, the arbitrary user ID registered is specified.
・ In the case of the public user box, verify that a user box password registered satisfies
the following conditions.
— It is composed of the characters and by the number of digits, shown in the Table 8.
— It shall not be composed of one kind of character.
・ Specify the arbitrary account ID registered when Group user box.
¾ Change of User Box Password
・ The user box password set to the public user box is changed.
・ It verifies whether the user box password newly set have been satisfied the following
qualities.
— It is composed of the characters and by the number of digits, shown in the Table 6.
— It shall not be composed of one kind of character.
¾ Change of user attribute of user box
・ Specify the user attribute of a personal user box to the other user or the account that
registered.
・ Specify the user attribute of group user box to the user or the other account that
registered.
・ Specify the user attribute of public user box to the user or account that registered.
・ Specify the user attribute of a personal user box or group user box to public.
— The registration of a user box password is necessary at the same time, and then the
processing which is similar to a change of the above-mentioned user box password
should be done.
④ Release of Lock
Reset (0 clear) the number of authentication failure for each users.
¾ If there is a user to whom access is locked, the lock is released.
Reset (0 clear) the number of authentication failure for all secure prints.
¾ If there is a secure print to which access is locked, the lock is released.
Reset (0 clear) the number of authentication failure of each user boxes.
¾ If there is a user box to which access is locked, the lock is released.
Reset (0 clear) the number of authentication failure of each account.
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¾ If there is a user box to which access is locked, the lock is released.
Reset (0 clear) the number of authentication failure of SNMP password.
¾ If there is a MIB object to which access is locked, the lock is released.
⑤ Setting of user authentication function
Set the following authentication method in a user authentication function.
¾ Machine authentication: Authentication method which utilizes a user password managed
on MFP sides.
¾ External server authentication : Authentication method which utilizes a user password
managed with a user information management server connected through a network.(Only
Active Directory method is object)
・When external server authentication is used, the external server authentication setting
data(Contain the multiple authentication server information, such as domain name to
which external server belongs) needs to be set.
Set the following authentication method in the account authentication function used with a
user authentication function.
¾ Account authentication function : synchronized method
The method which utilizes an account ID related to user ID beforehand.
¾ Account authentication function :
method not synchronized
The method to authenticate by the account ID and the account password at the time of access,
without utilizing the account ID that related to user ID beforehand.
¾ Account authentication function : not use
Utilize only the authentication function by user ID, and not utilize the authentication by
account information.
⑥ Setting of unauthorized access detection threshold
The unauthorized access detection threshold in the authentication operation prohibition
function is set for 1-3 times.
⑦ Setting and execution of all area overwrite deletion function
The deletion method shown in the following table is selected first, and then the overwrite
deletion at the data area of HDD and the initialization of NVRAM are performed. (Perform
F.OVERWRITE-ALL.)
Table 9 A type of overwrite deletion of all area and the method of overwriting
Method
Mode:1
Mode:2
Mode:3
Mode:4
Mode:5
Mode:6
Mode:7
Mode:8
Overwritten data type and their order
0x00
Random numbers ⇒ Random numbers ⇒ 0x00
0x00 ⇒ 0xFF ⇒Random numbers ⇒Verification
Random numbers ⇒ 0x00 ⇒ 0xFF
0x00 ⇒ 0xFF ⇒ 0x00 ⇒ 0xFF
0x00 ⇒ 0xFF ⇒ 0x00 ⇒ 0xFF ⇒ 0x00 ⇒ 0xFF ⇒Random numbers
0x00 ⇒ 0xFF ⇒ 0x00 ⇒ 0xFF ⇒ 0x00 ⇒ 0xFF ⇒ 0xAA
0x00 ⇒ 0xFF ⇒ 0x00 ⇒ 0xFF ⇒ 0x00 ⇒ 0xFF ⇒ 0xAA ⇒
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Method
Overwritten data type and their order
Verification
⑧
Setting of auto logoff function
The panel auto logoff time which is the setting data of the auto logoff function should be set
within the following time range.
¾ panel auto logoff time :1 - 9 minutes
⑨
Network Settings
A setup operation of the following setting data is performed.
¾ A series of setup data that relates to SMTP server(IP address, Port Number, etc.)
¾ A series of setup data that relates to DNS server(IP address, Port Number, etc.)
¾ A series of setup data that relates to MFP address(IP address, NetBIOS Name, AppleTalk
Printer Name, etc.)
⑩
Execution of back-up and restoration function
All the setting data stored in NVRAM and HDD is backed-up and re-stored except the
administrator password and the CE password. As the object related to security, due to the
relation of confidentiality and completeness, the one shown by the following classifications
is targeted.
<Type A : Object to which back-up and restoration should be limited>
¾ SNMP password
¾ User password
¾ Account password
¾ Secure print password
¾ User Box password
<Type B : Object to which restoration should be limited>
¾ A series of data that relates to SMTP server setting
¾ A series of data that relates to DNS server setting
¾ A series of data that relates to MFP address setting
¾ Setting data of Enhanced Security function
¾ Setting data of operation method of user authentication function
¾ Authentication failure frequency threshold of authentication operation prohibition
function
¾ Panel auto logoff time
¾ User ID
¾ User attribute of user box
¾ User box ID
¾ S/MIME certificate
¾ Transmission address data
¾ Encryption strength setting data in S/MIME function
¾ Trusted Channel function setting data
¾ Belonging Account of user
¾ CE authentication lock time
¾ Administrator authentication lock time
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<Type C : Object to which back-up should be limited>
¾ Secure print file
¾ User box file
⑪
Operation setting function of HDD lock function
<Operation Setting ON>
When turning it ON from OFF, it verifies that the newly set HDD lock password satisfies
the following qualities.
¾ It is composed of the characters and by the number of digits shown in Table 8.
¾ It shall not be composed of one kind of character.
<Modification of HDD lock password>
Change the HDD lock password. By using the HDD lock password currently set, when it is
re-authenticated as an administrator, and the new password satisfies the quality, it is
changed.
¾ Offers the HDD lock password verification mechanism that verified the HDD lock
password that consists of the character shown in Table 8.
¾ Return, in verification, “*" for each character as feedback for the entered HDD lock
password.
¾ Verify the HDD lock password newly set if the following qualities are satisfied.
・It is composed of the characters and by the number of digits shown in Table 8.
・It shall not be composed of one kind of character.
・It shall not be matched with the current value.
⑫
Operation setting of encryption function
(* When an optional encryption board is installed to MFP, it can be operated.)
<Operation Setting
ON>
When turning it ON from OFF, it verifies that the encryption passphrase newly set satisfies
the following qualities, and F.CRYPT is performed.
¾ It is composed of the characters and by the number of digits shown in Table 8.
¾ It shall not be composed of one kind of character.
<Encryption Passphrase Change>
Change the encryption passphrase. By using the encryption passphrase currently set, when it
is re-authenticated as an administrator, and the new encryption passphrase satisfies the
quality, F.CRYPT is performed.
¾ Offers the encryption passphrase verification mechanism that verified the encryption
passphrase that consists of the character shown in Table 8.
¾ Return, in verification, “*" for each character as feedback for the entered encryption
passphrase.
¾ Verify the encryption passphrase newly set if the following qualities are satisfied.
・It is composed of the characters and by the number of digits shown in Table 8.
・It shall not be composed of one kind of character.
・It shall not be matched with the current value.
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Function related to Enhanced Security function
The function that influences the setting of the Enhanced Security function that the
⑬
administrator operates is as follows. (* It has explained the influence of the backup and
restoration function in ⑩.)
¾ Operation setting of Enhanced Security function
Function to set valid or invalid of Enhanced Security function.
¾ HDD logical format function
Function to re-write system file of OS in HDD. Along with the execution of this logical
format, the setting of the Enhanced Security function is invalidated.
¾ Overwrite deletion function for all area
The settings of enhanced security function are invalidated by executing the overwrite
deletion of all area
Change of SNMP password
⑭
The SNMP password (Privacy password and Authentication password) is changed. Verify
that the SNMP password newly set satisfies the following qualities.
¾ It is composed of the characters and by the number of digits shown in Table 8.
Setting of SNMP password authentication function
The authentication method in the SNMP password authentication function is set to "Only
⑮
Authentication password" or the "Authentication password and Privacy password".
⑯
Account Settings
¾ Account registration
Account is registered by setting the account ID and registering the account password. It
verifies whether the account password newly set have been satisfied the following qualities.
・It is composed of the characters and by the number of digits, shown in Table 8.
・It shall not be composed of one kind of character.
¾ Change of account ID and account password
Account ID and account password is changed. It verifies whether the account password
newly set have been satisfied the following qualities.
・It is composed of the characters and by the number of digits, shown in Table 8.
・It shall not be composed of one kind of character.
¾ Account deletion
Account ID and account password are deleted.
・When the Group box of the account ID exists, that group user box is automatically set to
the public user box of “user attributes: public.”
⑰
Setting of Administrator Authentication Lock Time
Set the Administration authentication lock time between 1 - 60 minutes.
⑱
Setting of Trusted Channel function
Set the setting data of Trusted Channel function by SSL/TLS
¾
Communication Encryption Strength Setting (Modification of the communication
encryption method that can be used.)
⑲
Setting of S/MIME transmission function
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Set the setting data which are used when the user box file is S/MIME transmitted.
¾
Transmission address data (e-mail address)
¾
Registration and modification of S/MIME certificate
¾
Setting of Encryption Strength
.
6.1.2. F.ADMIN-SNMP(SNMP administrator function)
F.ADMIN-SNMP is a security function, which identifies and authenticates the administrator
in the access through the network by using SNMP from PC, and then permits the operation of a
setting function of the network only to the administrator whose identification and authentication
was succeeded.
6.1.2.1. Identification and authentication function by SNMP password
It identifies and authenticates by the SNMP password, that the user who accesses the MIB
object through the network with the use of SNMP is an administrator
z Offers the SNMP authentication mechanism which authenticates by the SNMP password
that consists of the character shown in chart 8.
¾ Only Authentication password or both the Privacy password and the Authentication
password is used.
¾ In the case of SNMP, the SNMP password is used for every session without requiring the
administrator authentication mechanism by the separate session information.
z Reset the authentication failure frequency if it succeeds in authentication.
¾ In the case of both the Privacy password and the Authentication password are used, the
authentication failure frequency is reset only when both passwords together succeeded in
the authentication.
z When the authentication failure that becomes the 1-3 times at total in each authentication
function by using the SNMP password is detected, all the authentication functions to use the
SNMP password are locked.(The access to the MIB object is refused.)
¾ The administrator specifies the failure frequency threshold by the unauthorized access
detection threshold setting function.
¾ In the case of both the Privacy password and the Authentication password are utilized,
even though both passwords together fails in authentication, it is detected as one failure.
z To release the lock, the lock release function to the MIB object of F.ADMIN is performed or
the F.RESET function operates.
z The lock status is released when the lock release function to the MIB object of F. ADMIN is
performed.
6.1.2.2. Management function using SNMP
When it is identified and authenticated that the user is an administrator by the SNMP
password, the access to the MIB object is permitted, and then the operation of the setting data
shown as followings is permitted to be done.
① Network Settings
Setting operation of the following setting data is performed.
¾ Setting data that relates to SMTP server(IP address, port number, etc.)
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¾ Setting data that relates to DNS server(IP address, port number, etc.)
¾ A series of setting data that relates to MFP address(IP address, NetBIOS name, AppleTalk
printer name, etc.)
② Change of SNMP password
The SNMP password (Privacy password and Authentication password) is changed. Verify that
the SNMP password newly set satisfies the following qualities.
¾ It is composed of the characters and by the number of digits shown in Table 8.
③ Setting of SNMP password authentication function
The authentication method in the SNMP password authentication function is set to the
"Authentication password only" or the "Privacy password and the Authentication password".
6.1.3. F.SERVICE(Service mode function)
F.SERVICE is a series of security function that the service engineer operates, such as the
service engineer identification authentication function in service mode accessing from a panel,
and a security management function that includes a change in the CE password and the
administrator password.
6.1.3.1. Service engineer identification authentication function
It is identified and authenticated the accessing user as the service engineer in response to the
access request to the service mode from the panel.
z Offers the CE authentication mechanism that is authenticated by the CE password that
consists of the character shown in Table 8.
¾
The CE authentication mechanism by the separate session information is not required
because the service mode can only be accessed from the panel.
z Return “*" for each character as feedback for the entered CE password.
z Resets the number of the authentication failure when succeeding in the authentication.
z Not accept the input from the panel for five seconds when the authentication failed.
z When the authentication failure that becomes 1-3 times at total in each authentication
function by using the CE password is detected, it locks all the authentication functions to use
the CE password. (The access to the service mode is refused.)
¾
The administrator specifies the failure frequency threshold by the unauthorized access
detection threshold setting function.
z Lock of authentication function is released with F.RESET function operated.
6.1.3.2. Function offered in service mode
When a user is identified and authenticated as a service engineer by the service engineer
identification authentication function at the access request to the service mode, the use of the
following functions is permitted.
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① Change of CE password
When a user is re-authenticated as a service engineer and the new password satisfies the
quality, it is changed.
¾ Offers the CE authentication mechanism that is re-authenticated by the CE password that
consists of the characters shown in Table 8.
¾ Resets the number of authentication failure when succeeding in the re-authentication.
¾ Return “*" for each character as feedback for the entered service codes in the
re-authentication.
¾ When the authentication failure that becomes 1-3 times at total in each authentication
function by using the CE password is detected, it logoffs the service mode accessing from
the panel, and locks all the authentication functions to use the CE password. (The access to
the service mode is refused.)
・ The administrator specifies the failure frequency threshold by the unauthorized access
detection threshold setting function.
¾ The F.RESET function operates to release the lock of the authentication function.
¾ It verifies that the CE password newly set satisfies the following qualities.
・ It is composed of the characters and by the number of digits, shown in the Table 8.
・ It shall not be composed of one kind of character.
・ It shall not be matched with the current value.
② Change of administrator password
Change the administrator password. Verify that the administrator password newly set
satisfies the following qualities.
¾
It is composed of the characters and by the number of digits, shown in the Table 8.
¾
It shall not be composed of one kind of character.
¾
It shall not be matched with the current value.
③ Function that relates to Enhanced Security function
The functions that influence the setting of the Enhanced Security function that the service
engineer operates are as follows.
¾ HDD logical format function
Function to re-write system file of OS in HDD. The setting of the Enhanced Security
function is invalidated along with the execution of this logical format.
¾ HDD physical format function
A function to rewrite the entire disk in HDD with a regulated pattern including the signal
rows such as the track and sector information. The setting of the Enhanced Security
function is invalidated along with the execution of this physical format.
¾ HDD installation setting function
Function to make the installed HDD effective. The setting of the Enhanced Security
function is invalidated by nullifying this HDD installation setting.
¾ Initialization function
Function to reset every setting value written in NVRAM to the factory default. The setting
of the Enhanced Security function is invalidated by executing this initialization function.
④ Function that relates to password initialization function
The function that relates to the initialization of the password that the service engineer
operates is as follows.
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¾ Initialization function
Function to reset various setting values written in NVRAM to the factory default. The
administrator password and the SNMP password are set to an initial value of the factory
shipment by executing this initialization function. Both of the operation settings of the
HDD lock function and the encryption function are turned OFF. (The HDD lock password
and the encryption passphrase have been set cannot be used again by turning OFF the
setting operation.)
¾ HDD physical format function
A function to rewrite the entire disk to a regulated pattern in HDD including the signal
rows such as the track and sector information. The HDD lock function is turned OFF along
with the execution of this physical format. (The HDD lock password that is set cannot be
used again by turning OFF the operation setting.)
⑤ Release of the lock of administrator authentication function
Reset (0 clear) the number of authentication failure for the administrator authentication.
If access is locked, the lock is released.
¾
⑥ Setting of CE Authentication Lock Time
Set the CE Authentication Lock Time between 1 - 60 minutes.
6.1.4. F.USER(User Function)
F.USER identifies and authenticates the user for the use of MFP various function. To the
identified and authenticated user, it offers the management function of the user password that is
managed in the MFP at the time of machine authentication, besides the permission of the use of
functions such as F.BOX and F.PRINT.
6.1.4.1. User Identification and Authentication Function
<Account Authentication : User identification and authentication in the synchronized method>
When the access request for the user box and the request for the registration of the secure
print file, it is identified and authenticated to be a user. Account Name (account ID) is associated
with the concerned user ID that is set up beforehand besides the user ID for the identified and
authenticated user, and the use of F.BOX and F.PRINT is permitted to the identified and
authenticated user.
z Offers the user authentication mechanism that authenticates the user that consists of the
characters shown in Table 8.
After the user is authenticated to the access from the network, the user authentication
¾
mechanism using session information besides the user password is offered.
According to the protocol, it uses the session information more than 1010 or it generates
¾
and uses the session information more than 1010.
z Return “*" for each character as feedback for the entered user password.
z Resets the number of authentication failure when succeeding in the authentication.
z Not accept the access from the panel for five seconds when the authentication failed.
z When the authentication failure that becomes 1-3 times at total for the concerned user is
detected, it locks all the authentication functions to the user.
¾
The administrator specifies the failure frequency threshold by the unauthorized
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access detection threshold setting function.
z To release the lock of the authentication function is to perform the lock release function to the
user authentication of F.ADMIN.
<Account Authentication : Account registration function when the belonging account of user is
not registered in the synchronized method>
z
Require the Account authentication after User identification and authentication.
z
Register the successful account ID as account name when succeeding in the account
authentication.
(The detail of the account authentication is the same as processing of the items explained in
the following <Account authentication: User identification and authentication in the
authentication method not synchronized>)
<Account Authentication :User identification and authentication in the authentication method
not synchronized>
When the access request for the user box and the request for the registration of the secure
print file, it is identified and authenticated to be a user. The detail of user authentication is the
same as account authentication: user identification and authentication in the synchronized
method. In the case of the access from the panel, the account authentication is required, Account
Name is associated with the user ID if succeeding the account authentication, and the use of
F.BOX and F.PRINT is permitted to the user who is identified and authenticated.
Offers account authentication mechanism that is authenticated the account by the account
z
password that consists of the characters shown in Table 8.
z
Return “*" for each character as feedback for the entered account password.
z
Resets the number of authentication failure when succeeding in the authentication.
z
Not accept the access from the panel for five seconds when the authentication failed.
When the authentication failure that becomes 1-3 times at total for the concerned account is
z
detected, it locks all the authentication functions to the account.
¾
The administrator specifies the failure frequency threshold by the unauthorized access
detection threshold setting function.
z
The lock of the authentication function is to perform the lock release function to the
concerned account of F.ADMIN.
When accessing from a network, the account is not authenticated after the user authentication
but the user and the account are processed with one sequence. When authenticating the account,
the account ID is associated with the user ID, and the user ID and the account ID are measured
by the session information which is the same as user identification and authentication in the
account authentication: the synchronized method.
<Automatic registration of the User ID>
In the case of the “External server authentication”has been selected as the user authentic
method, the identified and authenticated user is registered as an user ID with the user name
and authentication server information that was used with identification and authentication.
6.1.4.2. Auto logoff function in user identification and authentication domain
While the user who is identified and authenticated is accessing from a panel, if it does not
accept any operations for more than the “panel automatic logoff time”, it logs off from a user
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identification and authentication domain automatically.
6.1.4.3. Modification function of user password
When the identification and authentication are succeeded, and the access to the user
identification and authentication domain is permitted, the user is permitted to change its own
password. When the external server authentication is effective, this function cannot be applied.
When the user password newly set satisfies the following qualities, it is changed.
¾ It is composed of the characters and by the number of digits, shown in the Table 8.
¾ It shall not be composed of one kind of character.
6.1.5. F.BOX(User Box Function)
F.BOX is a series of security function related to the user box to the user who is identified and
authenticated that you are the registered user, such as the permission of the operation and
management of the personal user box of the user, the authentication to the user who is permitted
the utilization of the user box in the access to the public box, and the access control function to
permit various operations of the concerned user box and the user box file after the
authentication.
<Registration of user box by user operation>
To register a personal user box or a public user box by selecting the user attribute to the
non-registration user box ID selected. When it’s registered, it is possible to select "User ID" in
the user attribute of the user box which have been specified "Public" as a default value.
z In the case of the personal user box, the arbitrary user ID registered is specified.
z In the case of the public user box, verify that a user box password registered satisfies the
following conditions.
¾ It is composed of the characters and by the number of digits, shown in the Table 8.
¾ It shall not be composed of one kind of character.
z In the case of group user box, the arbitrary account ID registered is specified.
<Automatic registration of user box>
z In the user box operation to store of the copy job and the print job, when the specified user
box is unregistered, the personal user box which is set the user ID of the user who operates
the job concerned is automatically registered.
6.1.5.1. Personal User Box Function
① Access control function to personal user box
The task to act for the identified and authenticated user has "User ID" of the user who is
identified and authenticated for the user attribute. This task is permitted the display of the
list of the personal user box which has a corresponding user attribute with this user attribute.
② Access control function to a user box file in a personal user box
When the user box to operate is selected, "User Box ID" of the user box is related to the task
as a user box attribute in addition to the user attribute. This task is permitted, to the user box
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file with the user attribute and the user box attribute corresponding to the user attribute and
the user box attribute of itself, the printing, the E-mail transmission (include the S/MIME
transmission), the FTP transmission, the FAX transmission, the SMB transmission, download,
the removing to other user boxes, and the copy operations to other user boxes.
③ User attribute change of a personal user box
The user attributes can be changed.
¾
If another registered user is specified, it becomes a personal user box that another user
manages.
¾
If public is specified, it becomes a public user box. It is necessary to register the user box
password. In this case, it is verified that the user box password meets the following
requirements.
・ It is composed of the characters and by the number of digits shown in Table 8.
¾
・ It shall not be composed of one kind of character.
If account ID is specified, it becomes a group user box that can be accessed by a user who
is permitted the use of the concerned account.
6.1.5.2. Public User Box Function
When the user is identified and authenticated as a registered user, the task to act for the user
who is identified and authenticated has "User ID" of the identified and authenticated user as the
user attribute. This task is permitted the display of the list of the public user box which is set the
public as the user attribute. The operation specification of each public user box is as follows.
z Authentication function in access to a public user box
For the access request for each public user box, after the above-mentioned verification
function is operated, the user who accesses is authenticated that it is a user permitted the
use of a user box concerned respectively.
¾
Offers the user box authentication mechanism that is authenticated by the user box
password that consists of the character shown in Table 8.
・ After the user box is authenticated to the access from the network, it offers the user box
authentication mechanism using the session information besides the user box
password.
¾
According to protocol, it utilizes the 1010 session information or more, or generated and
uses the 1010 session information or more.
¾
Return “*" for each character as feedback for the entered user box password.
¾
Resets the number of authentication failure when succeeding in the authentication.
¾
In case of the access from the panel, when it fails in the authentication, an input from the
panel is not accepted for five seconds.
¾
When the authentication failure that becomes the 1-3 times in total is detected for the
public user box concerned, the authentication function to the public user box concerned is
locked.
・ The administrator specifies the failure frequency threshold by the unauthorized access
detection threshold setting function.
¾
The lock of the authentication function is released by the lock release function to the
public user box of F.ADMIN executed.
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The following is a function that the user who is permitted the use of the user box is offered in
the user box identification and authentication domain of the user box.
z Access control to a user box file in a public user box
The task to act for the user is related the "User Box ID" of the user box as a user box attribute
in addition to the user attribute. This task is permitted the user box file, which have been set
the public to the user attribute and have a corresponding user box attribute to the user box
attribute of the subject attribute, to do the printing, the E-mail transmission (include the
S/MIME transmission), the FTP transmission, the fax transmission, the SMB transmission,
download, the movement to other user boxes, and the copy operations to other user boxes.
z User attribute change of a public user box
The user attribute of the user box can be changed.
¾
Specify the registered user. And change to a personal user box for the registered user.
¾
Specify the account ID, and then it becomes a group user box that can be accessed by a
user who is permitted the use of the concerned account.
z Change of a public user box password
Change the user box password of the public user box. When the user box password newly set
satisfies the following qualities, it is changed.
¾
It is composed of the characters and by the number of digits shown in Table 8.
¾
It shall not be composed of one kind of character.
6.1.5.3. Group User Box Function
①Access control function for Group User Box
The task to act for the identified and authenticated user has the“Account ID”as the Account
Name that is related to the identified and authenticated user. This task is permitted the
display of the list of the group user box which has a corresponding user attribute with this
account ID.
② Access control function to a user box file in a group user box
When the user box to operate is selected, "User Box ID" of the user box is related to the task as
a user box attribute in addition to the user attribute. This task is permitted, to the user box
file with the user attribute and the user box attribute corresponding to the user attribute and
the user box attribute of itself, the printing, the E-mail transmission (include the S/MIME
transmission), the FTP transmission, the FAX transmission, the SMB transmission, download,
the removing to other user boxes, and the copy operations to other user boxes.
③ User attribute change of a group user box
The user attributes can be changed.
¾
If another account ID is specified, the user of another Account Name becomes an
¾
If public is specified, it becomes a public user box. It is necessary to register the user box
accessible group user box.
password. In this case, it is verified that the user box password satisfies the following
requirements.
・ It is composed of the characters and by the number of digits shown in Table 8.
¾
・ It shall not be composed of one kind of character.
Specify a registered user, and change to a personal user box for the registered user.
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6.1.6. F.PRINT(Secure Print Function)
F.PRINT is a series of security function related to the secure print such as the access control
function that allows the printing and displaying the list of the secure print file after
authenticating if a user is the authorized user to use the secure print file for the access to the
secure print file from the panel to the identified and authenticated user as a registered user.
6.1.6.1. Authentication function by the secure print password
When the user is identified and authenticated as the registered user, it authenticates that the
accessing user is a user to whom the use of the secure print file concerned is permitted, in
response to the access request to each secure print file.
z Offers the secure print password authentication mechanism that is authenticated by the
secure print password that consists of the character shown in Table 8.
¾
The secure print authentication mechanism by the separate session information is not
needed because it becomes only an access from the panel in the case of the secure print.
z Return “*" for each character as feedback for the entered secure print password.
z Resets the number of authentication failure when succeeding in the authentication.
z The access from the panel is not accepted for 5 seconds when the authentication is failed.
z When the authentication failure that becomes the 1-3 times in total for the secure print file
concerned is detected, the authentication function to the secure print file is locked.
¾
The administrator specifies the failure frequency threshold by the unauthorized access
detection threshold setting function.
z The lock is released by the lock release function to the secure print file of F.ADMIN executed.
6.1.6.2. Access control function to a secure print file
The secure print file access control operates when it is authenticated.
z The task to act for the user who is identified and authenticated has the authenticated secure
print internal control ID as the file attribute.
z This task is permitted the printing to the secure print file with a corresponding file attribute
to the file attribute of this task.
6.1.6.3. Registration function of a secure print file
When it is authenticated as a registered user in the registration request of the secure print file,
the user is permitted to register the secure print password with the concerned secure print file.
① Registration of the secure print password
The registered secure print password is verified to meet the following requirements.
¾
It is composed of the characters and by the number of digits shown in Table 8.
¾
It shall not be composed of one kind of character.
② Giving of the secure print internal control ID
When the verification of the secure print password is completed in a registration request of
the secure print file, the secure print internal control ID uniquely identified is set to the
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concerned secure print file.
6.1.7. F.OVERWRITE-ALL(All area overwrite deletion function)
F.OVERWRITE-ALL executes the overwrite deletion in the data area of HDD and initializes
the setting value of the password that is set to NVRAM as well. The object for the deletion or the
initialization is as follows.
<Object for the deletion:HDD>
z Secure print file
z User box file
z On memory image file
z Stored image file
z Remaining image file
z Image related file
z Transmission address data file
z User ID
z User password
z User box password
z Secure print password
z Account ID
z Account password
z S/MIME certificate
z Remaining TSF data
<Object for the initialization:NVRAM>
z Administrator Password
z SNMP password
z Operation setting of HDD lock function(OFF)
・・・HDD lock password is deleted.
z Operation setting of Encryption function(OFF) ・・・Encryption Passphrase is deleted.
z Trusted Channel setting data
・・・ Trusted Channel setting data is
deleted, because initialization has no
default value.
The deletion methods such as the data written in HDD and the written frequency is executed
according to the deletion method of all area overwrite deletion function set in F.ADMIN (Table 9).
The HDD lock password and the encryption passphrase cannot be used for being turned off the
operation setting of the HDD lock function and the encryption function. The setting of the
Enhanced Security function becomes invalid in the execution of this function. (Refer to the
description for the operation setting of the Enhanced Security function in F.ADMIN.)
6.1.8. F.CRYPT(Encryption key generation function)
F.CRYPT is generated the encryption key to encrypt all data written in HDD by using the
HDD encryption key generation algorithm (SHA-1) that is regulated by the KonicaMinolta
encryption specification standard. KonicaMinolta HDD encryption key generation algorithm
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(SHA-1) is the algorithm to generate the encryption key by using the SHA-1 regulated by FIPS
180-1.
When the encryption passphrase is decided in the encryption functional operation setting to
which the access is restricted in F.ADMIN, the encryption key of 128bit length is generated from
the encryption passphrase by applying the SHA-1 algorithm.
6.1.9. F.HDD(HDD verification function)
F.HDD is a check function to permit reading from and writing in the HDD only when it is
verified that the illegal HDD is not installed and is confirmed validity when the HDD lock
password is set to HDD
When the HDD lock password is set to HDD, the status of HDD is confirmed in the HDD
operation verifying at the time of TOE starting. When the HDD lock password certainly being
set is returned as the result of status confirmation, the access to HDD is permitted. If the HDD
lock password not being set is returned, the access to HDD is refused because of an illegitimate
possibility.
6.1.10. F.RESET(Authentication Failure Frequency Reset Function)
F.RESET is a function that releases the lock by resetting the authentication failure frequency
when the account locks in the administrator authentication and CE authentication.
①CE Authentication function lock release processing function
The function is executed by the specific operation, and the lock is released by clearing the
failure frequency of the CE authentication to 0 after CE authentication lock time.
②Administrator authentication function lock release processing function
The function is executed by OFF/ON of the main power supply, and the lock is released by
clearing the failure frequency of the administrator authentication to 0 after the administrator
authentication lock time.
6.1.11. F.TRUSTED-PASS (Trust Channel Function)
F.TRUSTED-PASS is a function that generates and achieves the Trusted Channel by using
SSL or TSL protocol when transmitting and receiving the following image file between PC and
MFP.
z
User box file (download from MFP to PC)
z
Image file that will be stored as a user box file (upload from PC to MFP)
z
Image file that will be stored as Secure Print file (upload from PC to MFP)
6.1.12. F.S/MIME (S/MIME Encryption Processing Function)
F.S/MIME is a function to encrypt the User box file when transmitting the User box file as
S/MIME.
<User box file Encryption Key generation>
z
The Encryption key is generated to encrypt the user box file by the pseudorandom number
Generation Algorithm which FIPS 186 provides. (Encryption key length is 128bit, 168bit,
192bit or 256bit.)
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<Encryption of User box file >
It is encrypted by AES which FIPS PUB 197 provides by using encryption key (128bit,
z
168bit and 256bit) to encrypt the user box file.
It is encrypted by the 3-Key-Triple-DES which SP800-67 provides by using the encryption
z
key (168bit) to encrypt the user box file.
<Encryption of User box file Encryption key>
The encryption key to encrypt the user box file is encrypted by RSA which FIPS 186 -1
z
provides.
The key length of the encryption key used in this case is 1024 bit, 2048bit, 3072bit or
z
4096bit.
6.2. TOE Security Strength of Function
The TOE security functions having probabilistic/permutational mechanisms are as follows.
The strength of each of the functions satisfies the SOF-Basic.
①
Administrator authentication mechanism, HDD lock password verification mechanism,
②
and encryption passphrase verification mechanism which F.ADMIN offers
CE authentication mechanism which F.SERVICE offers
③
Secure print authentication mechanism which F.PRINT offers
④
User box authentication mechanism which F.BOX offers
⑤
SNMP authentication mechanism which F.ADMIN-SNMP offers
⑥
User authentication mechanism which F.USER offers
6.3. Correspondence between TOE Security Functions and Function Requirements
The correspondence between TOE security function and TOE security function requirements
shows in Table 15. Table 15 shows that the TOE security function corresponds to at least one
TOE security function requirement.
6.4. Assurance Measures
The following table shows the assurance measures to meet the component of the TOE security
assurance requirements for EAL3 that are stipulated in Table 10.
Table10 Correspondence between TOE Assurance Requirements and assurance measures
TOE Security Assurance Requirement
Class ACM:
Configuration
management
Class ADO:
Delivery and
Operation
Component
TOE Security Assurance Requirement
CM capabilities
ACM_CAP.3
CM scope
ACM_SCP.1
Delivery
ADO_DEL.1
Delivery / operation instructions
ADO_IGS.1
・Service Manual [Security Function]
bizhub C253/C203
・Service Manual [Security Function]
bizhub C253/C203
Installation,
and start-up
generation
・Configuration management plan
・Configuration List
・CM record
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TOE Security Assurance Requirement
Component
TOE Security Assurance Requirement
ineo + 253/+ 203
・User’s Guide [Security Function]
bizhub C253/C203
・User’s Guide [Security Operations]
bizhub C253/C203
・User’s Guide[Security Operations]
ineo + 253/+ 203
Class ADV:
Development
Functional specification
ADV_FSP.1
Security function specifications
High-level design
ADV_HLD.2
Security high level design specifications
Representation
correspondence
ADV_RCR.1
Representation correspondence analysis report
Administrator guidance
AGD_ADM.1
User Guidance
AGD_USR.1
Development security
ALC_DVS.1
Development security instructions
Coverage
ATE_COV.2
Coverage analysis report
Depth
Class AGD:
Guidance Document
Class ALC:
Life Cycle Support
Class ATE:
Test
Class AVA:
Vulnerability
Assessment
・Service Manual[Security Function]
bizhub C253/C203
・Service Manual[Security Function]
bizhub C253/C203
ineo + 253/+ 203
・User’s Gide[Security operations]
bizhub C253/C203
・User’s Guide[Security operations]
bizhub C253/C203
・User’s Guide[Security operations]
ineo + 253/+ 203
ATE_DPT.1
Depth analysis report
Functional tests
ATE_FUN.1
Test specification and results report
Independent testing
ATE_IND.2
MFP control software including TOE
Misuse
AVA_MSU.1
Strength of TOE security
functions
AVA_SOF.1
Vulnerability analysis
AVA_VLA.1
※ no specific document
(Reflected in the guidance documents)
Vulnerability analysis report
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7. PP Claims
There is no conformance to a PP in this ST.
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8. Rational
8.1. Security Objectives Rationale
8.1.1. Necessity
The correspondence between the assumptions, threats and security objectives are shown in the
following table. It shows that the security objectives correspond to at least one assumption or
threat.
Table 11 Conformity of Security Objectives to assumptions and Threats
●
●
P.COMMUNICATION-DATA
T.ACCESS-SECURE-PRINT
●
T.BACKUP-RESTORE
T.ACCESS-GROUP-BOX
O.REGISTERED-USER
O.PRIVATE-BOX
O.PUBLIC-BOX
O.GROUP-BOX
O.SECURE-PRINT
O.CONFIG
O.OVERWRITE-ALL
O.CRYPT-KEY
O.CHECK-HDD
O.TRUSTED-PASS
O.CRYPTO-MAIL
OE.CRYPT
OE.LOCK-HDD
OE.FEED-BACK
OE-N.ADMIN
OE-N.SERVICE
OE-N.NETWORK
OE-N.SECRET
OE-N.SERVER
OE-N.SESSION
OE-N.SETTING-SECURITY
T.ACCESS-SETTING
T.ACCESS-PUBLIC-BOX
●
●
Security objectives
T.ACCESS-NET-SETTING
T.ACCESS-PRIVATE-BOX
T.BRING-OUT-STORAGE
T.DISCARD-MFP
A.SERVER
A.SETTING
A.SECRET
A.NETWORK
A.SERVICE
A.ADMIN
Assumption/Treat
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
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8.1.2. Sufficiency of Assumptions
The security objectives for the assumptions are described as follows.
z A.ADMIN(Personnel Conditions to be an Administrator )
This condition assumes that administrators are not malicious.
With OE-N.ADMIN, the organization that uses the MFP assigns personnel who are reliable in
the organization that uses the MFP, so the reliability of the administrator is realized.
z A.SERVICE(Personnel Conditions to be a Service Engineer)
This condition assumes the service engineer are not malicious.
With OE-N.SERVICE, the organization that manages the maintenance of the MFP educates
the service engineer. Also the administrator needs to observe the maintenance of the MFP, so
that the reliability of service engineers is assured.
z A.NETWORK(Network Connection Conditions for the MFP)
This condition assumes that there are no wiretapping activities for the intra-office LAN and
no access by an unspecified person from an external network.
OE-N.NETWORK regulates the wiretapping prevention by the installation of devices such as
a wiretapping detection device and device to perform the encryption communication on the
intra-office LAN. It also regulates the unauthorized access prevention from external by the
installation of devices such as firewall in order to block access to the MFP from the external
networks, so that this condition is realized.
z A.SECRET(Operating condition concerning confidential information)
This condition assumes each password and encryption passphrase using for the use of TOE
should not be leaked by each user.
OE-N.SECRET regulates that the administrator makes the user to execute the operation rule
concerning the secure print password, the user box password, user password and account
password and that the administrator executes the operation rule concerning the
administrator password, the HDD lock password, SNMP password, encryption passphrase
and account password. It also regulates that the service engineer executes the operation rule
concerning the CE password, and that the service engineer makes the administrator to
execute the operation rule concerning the administrator password, so that this condition is
realized.
z A.SETTING(Enhanced Security Function Operational Settings Condition)
This condition assumes the enhanced security function operational settings condition is
satisfied.
OE-N.SETTING-SECURITY regulates that this is used after the administrator activates the
enhanced security function, so that this condition is realized.
z A.SERVER(Management condition of user information management server connected with
the intra-official LAN)
This condition assumes that the requiring user information management server is managed
securely when "external server authentication" is used as the method of the user
authentication.
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OE-N.SERVER regulates that the person in charge of the organization executes the server
management which is necessary to maintain security such as the patch application, the
account management, and the access control for the user information management serve, so
that this condition is realized.
8.1.3. Sufficiency of Threats
The security objectives against threats are described as follows.
z T.DISCARD-MFP(Lease return and disposal of MFP)
This threat assumes the possibility of leaking information from MFP collected from the user.
O.OVERWRITE-ALL is that TOE offers the function to overwrite data for the deletion to all
area of HDD and initializes the information of NVRAM, so that the possibility of the threat is
removed by executing this function before MFP is collected.
Accordingly, this threat is countered sufficiently.
z T.BRING-OUT-STORAGE(Unauthorized taking out of HDD)
This threat assumes the possibility that the image data in HDD leaks by being stolen from
the operational environment under MFP used or by installing the unauthorized HDD and
taking away with the data accumulated in it.
For the above, the possibility of the threat is removed because at least either of the following
two measures is selected by the administrator.
①O.CRYPT-KEY generates the encryption key for TOE to encrypt data to be written in
HDD, and the encryption board encodes data by OE.CRYPT.
②OE.LOCK-HDD doesn't permit to read data from any other MFP, as a function of the
HDD, but the MFP where this HDD is installed.
In the above-mentioned, when only ② is selected, danger of leaking exists by taking out the
another HDD without the function of ② having been secretly replaced. For the above,
because the validity of HDD installed by TOE is verified by O.CHECK-HDD, data is not
written in the HDD replaced secretly. The possibility of the threat is removed consequently.
Accordingly, this threat is countered sufficiently.
z T.ACCESS-PRIVATE-BOX(Unauthorized access to personal user box using user function)
This threat assumes the possibility that an unauthorized operation is done by using the user
function for the personal user box which each user uses to store the image file.
O.REGISTERED-USER is assumed that only the user to whom TOE was registered is
permitted to use MFP installed TOE, furthermore, the operation of a personal user box and
the user box file in a personal user box is restricted only to the user who is the owner by
O.PRIVATE-BOX, so that the possibility of the threat is removed.
OE.FEED-BACK regulates to return the protected feedback for the entered password in the
user's authentication, and OE-N.SESSION also requires the log-off operation after the
operation ends, so that O.REGISTERED-USER and O.PRIVATE-BOX are supported
sufficiently.
Accordingly, this threat is countered sufficiently.
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z T.ACCESS-PUBLIC-BOX(Unauthorized access to public user box using user function)
This threat assumes the possibility that an unauthorized operation is done by using the user
function for the public user box which each user shares to store the image file.
O.REGISTERED-USER assumes that only the user to whom TOE was registered is
permitted to use MFP installing TOE, furthermore, the operation of the public user box and
the user box file in the public user box is restricted only to the user who is permitted by
O.PUBLIC-BOX, so that the possibility of the threat is removed.
OE.FEED-BACK regulates to return the protected feedback for the entered password in the
user's authentication and user box's authentication, and OE-N.SESSION requires the log-off
operation after the operation ends, so that O.REGISTERED-USER and O.PUBLIC-BOX are
supported sufficiently.
Accordingly, this threat is countered sufficiently.
z T.ACCESS-GROUP-BOX (Unauthorized access to a group user box using user function)
This threat assumes the possibility that an unauthorized operation is performed by using the
user function for the group box that is a storage area of image file used by user who is
permitted the use of the account, or the user box file in it.
O.REGISTERED-USER assumes that only the user to whom TOE was registered is
permitted to use MFP installed TOE, furthermore, the operation of the group user box and
user box file in the group user box is restricted only to the permitted userby O.GROUP-BOX,
so that the possibility of the threat is removed.
OE.FEED-BACK regulates to return the protected feedback for the entered password in the
user's authentication and account's authentication, and OE-N.SESSION also requires the
log-off
operation
after
the
operation
ends,
so
that
O.REGISTERED-USER
and
O.GROUP-BOX are supported sufficiently.
Accordingly, this threat is countered sufficiently.
z T.ACCESS-SECURE-PRINT(Unauthorized access to a secure print file)
This threat assumes the possibility that an unauthorized operation is done to the secure print.
O.REGISTERED-USER assumes that only the user to whom TOE was registered is
permitted to use MFP installing TOE, furthermore, the operation of the secure print is
limited only to the authorized user by O.SECURE-PRINT, so that the possibility of the threat
is removed.
OE.FEED-BACK regulates to return the protected feedback for the entered password in the
user's authentication and access authentication to the secure print, and OE-N.SESSION
requires the log-off operation after the operation ends, so that O.REGISTERED-USER and
O.SECURE-PRINT are supported sufficiently.
Accordingly, this threat is countered sufficiently.
z T.ACCESS-NET-SETTING(Unauthorized change in network setting )
This threat assumes the possibility of sending the user box file to the address that isn't
intended, when the network setting that relates to the transmission is illegally changed. This
is concerned about a possibility that the user box file is transmitted to the specified server
illegally without the change of the network environment constitution by the malicious person
by, for instance, illegally being changed the address of the SMTP server that relays E-mail for
the E-mail, or illegally being changed the address of the DNS server where the domain name
is inquired when the address of the SMTP server is used for a search of the domain name.
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For FTP transmission, by being likely to use the mechanism of the search of the domain name
is concerned about the similar possibility of the incident might be occurred by E-mailing.
Furthermore, when the network setting which is related to the address of MFP is modified
illegally, it assumes the possibility to use the print function to the unauthorized entity from
PC by the user who believes as TOE. Especially, it becomes a problem if a secure print file
which is required to be concealed from other users in the office is transmitted to the
unauthorized entity.
On the other hand, O.CONFIG regulates that the role to operate the network setting relating
to the transmission of TOE is limited to the administrator, and so the possibility of this threat
is removed.
OE.FEED-BACK regulates that the feedback protected is returned for the entered password
by the administrator's authentication and OE-N.SESSION requires to logoff after the
operation ends, so that O.CONFIG is supported sufficiently.
Accordingly, this threat is countered sufficiently.
z T.ACCESS-SETTING(Unauthorized change of function setting condition related to security)
This threat assumes the possibility of developing consequentially into the leakage of the user
box file and the secure print file by having been changed the specific function setting which
relates to security.
O.CONFIG regulates that only the administrator is permitted to perform the setting of the
enhanced security function that controls all setting function related to a series of security,
and so the possibility of the threat is removed.
OE.FEED-BACK regulates that the feedback protected is returned for the entered password
by the administrator's authentication, and OE-N.SESSION is also requested to logoff
respectively after the operations of the administrator mode ends, so that O.CONFIG is
supported sufficiently.
Accordingly, this threat is countered sufficiently.
z T.BACKUP-RESTORE(Unauthorized use of back-up function and restoration function)
This threat assumes a possibility that the user box file or the secure print file may leak since
the back-up function or the restoration function being illegally used. Moreover, this assumes
that because of a leak of confidential data such as the password, the various setting values
are falsified and there is a similar possibility that the user box file or the secure print file may
leak.
O.CONFIG regulates that the use of the back-up function and the restoration function is
permitted only to the administrator, so that the possibility of the threat is removed.
OE.FEED-BACK regulates that the protected feedback is returned for the entered password
by the administrator authentication and OE-N.SESSION is also requested the log-off
operation after the operation ends, and so O.CONFIG is sufficiently supported.
Accordingly, this threat is countered sufficiently.
8.1.4. Sufficiency of Organizational Security Policies
Security objective corresponding to organizational security policies is explained as follows.
z P.COMMUNICATION-DATA (secure communication of image file)
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This organizational security policies prescribes carrying out processing via trusted pass to a
correct destination or encrypting to ensure the confidentiality about the image file which
flows on a network.
O.TRUSTED-PASS offers the Trusted Channel to a correct destination in the transmition and
reception of an image such as from MFP to PC or from PC to MFP, for the user box file and
the secure print file that is a confidential image, so that the organizational security policies is
achieved.
Also, the security objective offers the transmission function to a correct destination by
encrypting the user box file transmitted by e-mail from MFP to PC by O.CRYPTO-MAIL, so
that the organizational security policies is achieved. Furthermore, O.CONFIG restricts the
Trusted Channel function setting data, the management of the user box files’ encryption by
e-mail and the transmission address data to the administrator. And then, OE.FEED-BACK
regulates that the protected feedback is returned for the entered password in the
administrator’s authentication, and OE.SESSION is also regulated to log off after the
operations of the administrator mode ends, so that O.CONFIG is supported.
Accordingly, this organizational security policies is sufficiently to achieve.
8.2. IT Security Requirements Rationale
8.2.1. Rationale for IT Security Functional Requirements
8.2.1.1. Necessity
The correspondence between the security objectives and the IT security functional
requirements are shown in the following table. It shows that the IT security functional
requirements correspond to at least one security objective.
Table 12 Conformity of IT Security Functional Requirements to Security Objectives
●
●
●
●
●
●
※ set.service
●
※ set.admin
●
OE.FEED-BACK
●
OE.LOCK-HDD
●
●
OE.CRYPT
●
●
O.CRYPTO-MAIL
●
●
O.TRUSTED-PASS
●
●
O.CHECK-HDD
●
●
O.CRYPT-KEY
O.CONFIG
●
●
O.OVERWRITE-ALL
O.SECURE-PRINT
set.admin
set.service
FCS_CKM.1
FCS_COP.1
FDP_ACC.1[1]
FDP_ACC.1[2]
FDP_ACC.1[3]
FDP_ACF.1[1]
FDP_ACF.1[2]
FDP_ACF.1[3]
FIA_AFL.1[1]
FIA_AFL.1[2]
O.GROUP-BOX
Requirements
O.PUBLIC-BOX
Functional
O.PRIVATE-BOX
Security
O.REGISTERED-USER
Security Objective
●
●
●
●
●
●
●
●
●
●
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※ set.admin
※ set.service
OE.FEED-BACK
OE.LOCK-HDD
OE.CRYPT
O.CRYPTO-MAIL
O.TRUSTED-PASS
O.CHECK-HDD
O.CRYPT-KEY
O.OVERWRITE-ALL
O.CONFIG
O.SECURE-PRINT
FIA_AFL.1[3]
FIA_AFL.1[4]
FIA_AFL.1[5]
FIA_AFL.1[6]
FIA_AFL.1[7]
FIA_AFL.1[8]
FIA_ATD.1
FIA_SOS.1[1]
FIA_SOS.1[2]
FIA_SOS.1[3]
FIA_SOS.1[4]
FIA_SOS.1[5]
FIA_SOS.1[6]
FIA_SOS.1[7]
FIA_SOS.2
FIA_UAU.2[1]
FIA_UAU.2[2]
FIA_UAU.2[3]
FIA_UAU.2[4]
FIA_UAU.2[5]
FIA_UAU.2[6]
FIA_UAU.6
FIA_UAU.7
FIA_UID.2[1]
FIA_UID.2[2]
FIA_UID.2[3]
FIA_UID.2[4]
FIA_UID.2[5]
FIA_UID.2[6]
FIA_UID.2[7]
FIA_USB.1
FMT_MOF.1[1]
FMT_MOF.1[2]
FMT_MOF.1[3]
FMT_MSA.1[1]
FMT_MSA.1[2]
FMT_MSA.1[3]
FMT_MSA.3[1]
FMT_MSA.3[2]
FMT_MTD.1[1]
FMT_MTD.1[2]
FMT_MTD.1[3]
FMT_MTD.1[4]
FMT_MTD.1[5]
FMT_MTD.1[6]
O.GROUP-BOX
Requirements
O.PUBLIC-BOX
Functional
O.PRIVATE-BOX
Security
O.REGISTERED-USER
Security Objective
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
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●
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※ set.service
※ set.admin
OE.FEED-BACK
OE.LOCK-HDD
OE.CRYPT
O.CRYPTO-MAIL
O.TRUSTED-PASS
O.CHECK-HDD
O.CRYPT-KEY
O.OVERWRITE-ALL
O.CONFIG
O.SECURE-PRINT
FMT_MTD.1[7]
FMT_MTD.1[8]
FMT_MTD.1[9]
FMT_MTD.1[10]
FMT_MTD.1[11]
FMT_MTD.1[12]
FMT_MTD.1[13]
FMT_SMF.1
FMT_SMR.1[1]
FMT_SMR.1[2]
FMT_SMR.1[3]
FMT_SMR.1[4]
FMT_SMR.1[5]
FMT_SMR.1[6]
FPT_RVM.1
FPT_SEP.1
FTA_SSL.3
FTP_ITC.1
FNEW_RIP.1
FIA_NEW.1
FCS_COP.1[E]
FIA_AFL.1[E]
FIA_UAU.2[E]
FIA_UAU.7[E]
O.GROUP-BOX
Requirements
O.PUBLIC-BOX
Functional
O.PRIVATE-BOX
Security
O.REGISTERED-USER
Security Objective
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●
Note) set.admin and set.service indicates the set of the requirements. And the security
objectives assumed to have the correspondence and presented by "●" also correspond to a
series of requirement set associated by ※ set.admin and ※ set.service shown in column.
8.2.1.2. Sufficiency
The IT security functional requirements for the security objectives are described as follows.
z O.REGISTERED-USER(Usage of a registered user)
This security objective limits the utilization of MFP installing TOE to only the registered user,
and needs various requirements that related to the user identification and authentication.
<Necessary requirement for identification and authentication of the user>
It identifies and authenticates that the user who accesses is a registered user by FIA_UID.2[3]
and FIA_UAU.2[3].
FIA_UAU.7 returns “*" for each entered character as feedback protected by the panel and
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supports the authentication.
In the case of the failure authentication from the panel, FIA_AFL.1 [8] refuses all input
acceptances from the panel for 5 seconds in every failure. When the authentication failure
reaches 1-3 times, FIA_AFL.1 [4] locks the authentication function for that user from then on.
This lock status is released by the administrator's release operation.
FMT_MOF.1[2] permits only the administrator the selection of the user authentication
methods which are "Machine authentication" and "External server authentication".
FMT_MTD.1[3] permits only the administrator the setting (modification) of the threshold of
the Authentication failure frequency which is the trial frequency of the failure authentication
in the user authentication.
FIA_SOS.1[6] secures the quality verification of the session information used in the user
authentication via the network, and FIA_SOS.2 secures the quality of the session information
which is generated and used.
<Necessary requirements for managing session of user who is identified and authenticated>
The duration of session of the user who is identified and authenticated contributes to reduce
the chance of attacking associated with unnecessary session connection, by ending the session
after the panel automatic logoff time elapses with FTA_SSL.3. when it logs in from the panel.
The change in the panel auto logoff time is limited to the administrator by FMT_MTD.1[3].
<Necessary requirement for managing the identification and authentication information of
the user>
When "the machine authentication" is chosen in a method of the user authentication by
FMT_MTD.1[1], the initial registration of a user password in the user’s registration is
permitted only by the administrator.
When "the machine authentication" has been selected in the method of the user authentication,
the registration of the user ID in the user registration is permitted to the administrator by
FMT_MTD.1[10]. When the "external server authentication" (has been selected in the user
authentication method, the user who is authenticated the identification is permitted from an
external server and registered automatically by this requirement.(This corresponds to the
user ID registration of the "external server".)At this registration, the external server accessing
TOE is identified the external server registered by FIA_UID.2[7]. This management behavior
is maintained as the role of the external server by FMT_SMR.1 [5]. In addition, the
registration function of user ID is specified for the administration function by FMT_SMF.1.
The setting change operation of an external server is limited to only the administrator by
FMT_MTD.1[3].
The quality of the user password is verified by FIA_SOS.1[3]. When "machine authentication"
is selected in the method of the user authentication, a change of the user password is limited to
the user itself and the administrator by FMT_MTD.1[2].
<Necessary requirement to keep the administrator secure>
⇒ refer to set.admin
<Necessary requirement to keep the service engineer secure>
⇒ refer to set.service
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<Role and management function for each management>
The role to do these managements is maintained as a administrator by FMT_SMR.1[2] and a
user by FMT_SMR.1[3]. Moreover, these management functions are specified by FMT_SMF.1.
This security objective is satisfied by the completion of these multiple functional requirements.
z O.PRIVATE-BOX(personal user box access control)
This security objective limits access to the personal user box and the user box file in the
personal user box to only the user who owns that user box, and needs various requirements
that relate to the access control.
<User box access control (a personal user box)>
By FDP_ACC.1[1] and FDP_ACF.1[1], the task of acting the user has a user ID, and is
permitted to display the list of the user box with a corresponding user attribute. In addition,
after the user box has been selected, when the user box ID is related to the task of acting a
use by FIA_ATD.1 and FIA_USB.1, the operation such as a print, a download, transmissions,
a movement, and a copy is permitted to the user box file that has a corresponding object
attribute to user ID and user box ID of the subject attribute.
<Management of a personal user box>
FMT_MSA.1[1] permits to the user and the administrator the change operation of the user
attribute of the user box where the user ID is set.
As for the registration of the user box, public is appointed to the user attribute of the user box
by FMT_MSA.3[1], and it is permitted only to the user being able to give the initial value to
change. In addition, when the job to store the non-registered user box into the user box
appointed is executed due to the same requirement, a user ID of the user who executes a job
concerned is appointed automatically.
<Necessary requirement to keep the administrator secure>
⇒ refer to set.admin
<Necessary requirement to keep the service engineer secure>
⇒ refer to set.service
<Role and controlling function for each management>
As the role of doing these managements, FMT_SMR.1[2] maintains an administrator and
FMT_SMR.1[3] maintains a user permitted the use of the user box. FMT_SMF.1 specifies
these management functions.
This security objective is satisfied by the completion of these multiple functional
requirements.
z
O.PUBLIC-BOX(a public user box access control)
This security objective permits the inspection of the public user box to all users, and limits
the setting of the public user box and the operation of the user box file in the public user box
only to the user who permitted the utilization of that public user box. And it needs the
various requirements that related to the access control.
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<User box access control (a public user box)>
FDP_ACC.1[1] and FDP_ACF.1[1] permits the list display operation to the user box where
public is set to the user attribute to the task of acting the user who has user ID.
It is required to be a user who is permitted the use of the user box to operate the user box file
in the public user box. FIA_UID.2[5] and FIA_UAU.2[5] identifies and authenticates that it is
a user who is permitted the use of the user box.
FIA_UAU.7 returns “*" for each entered character as feedback protected by the panel and
supports the authentication.
In the case of the failure authentication from the panel, FIA_AFL.1 [8] refuses all input
acceptances from the panel for 5 seconds in every failure. When the authentication failure
reaches 1-3 times, FIA_AFL.1 [6] locks the authentication function for that user from then on.
This lock status is released by the administrator's release operation.
FMT_MTD.1[3] permits only to the administrator the setting of the threshold of the
unauthorized access detection value that is the trial frequency of the failure authentication in
the authentication of the user who is permitted the use of the user box.
When FIA_ATD.1 and FIA_USB.1 relates a user box ID to the task of acting use,
FDP_ACC.1[1] and FDP_ACF.1[1] permit the user box file that has a corresponding object
attribute to the user box ID of the subject attribute and is set public to the user attribute of
user box, the operation such as a print, a download, transmissions, a movement, and a copy.
FIA_SOS.1[6] secures the quality verification of the session information used in the user box
authentication via the network, and FIA_SOS.2 secures the quality of the session information
which is generated and used.
<Management of a public user box>
FMT_MSA.1[2] permits the user who is permitted the use of the user box to operate the
change of the user attribute of use box which "Public" is set. FMT_MTD.1[4] permits the
change in the user box password only to the administrator and the user who is permitted to
the use of the user box. FIA_SOS.1[7] verifies the quality of the user box password. As for the
user box registration, FMT_MSA.3 specifies the public to the user attribute of the user box,
and permits only the user to be given the initial value to change it. Moreover, when the job
that stores an unregistered user box in the box where is specified by this requirement is
executed, the user ID of the user who executed a job concerned is automatically specified.
FMT_MTD.1[5] permits the registration of the user box password only to the user or the
administrator.
<Necessary requirement to keep the administrator secure>
⇒ refer to set.admin
<Necessary requirement to keep the service engineer secure>
⇒ refer to set.service
<Role and controlling function for each management>
As the role of doing these managements, FMT_SMR.1[2] maintains an administrator and
FMT_SMR.1[4] maintains a user permitted the use of the user box. FMT_SMF.1 specifies
these management functions.
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This security objective is satisfied by the completion of these multiple functional
requirements.
z O.GROUP-BOX (Group user box access control)
This security objective permits the browser of the group box only to the user who is permitted
the use of the account, and limits the operation of the user function of the box file in the group
user box, set of the group box only to the user who is permitted the use of the group user box,
and requires various requirements that relate to the access control.
<User box access control (a group user box)>
FDP_ACC.1[1] and FDP_ACF.1[1] permits a task to act for the user to operate the list to the
user box (group user box) where the user attribute corresponded with the Account Name
(account ID) in the security attribute of the subject is set.
It is required to be a user who is permitted the use of the group user box to operate the user
box file in the group user box. When the Account authentication method is “the method not
synchronized”, FIA_UID.2[6] and FIA_UAU.2[6] identifies and authenticates that it is a user
who is permitted the use of the group user box. When the account authentication method is
“synchronized method” and the Account that user belongs to is not registered,
FIA_UID.2[6] and FIA_UAU.2[6] identifies and authenticates that it is a user who is
permitted the use of the account.
FIA_UAU.7 returns “*”for each entered character as feedback protected by the panel and
supports the authentication.
In the case of the failure authentication from the panel, FIA_AFL.1[8] refuses all input
acceptances from the panel for 5 seconds in every failure. When the authentication failure
reaches 1-3 times, FIA_AFL.1[7]
locks the authentication function for that account from
then on.
This lock status is released by the administrator’s release operation.
FMT_MTD.1[3] permits only the administrator the setting of the threshold of the
unauthorized access detection value that is the trial frequency of the failure authentication in
the authentication of the user who is permitted the use of the group user box.
When FIA_ATD.1 and FIA_USB.1 relates to the user box ID under the task to act for user,
FDP_ACC.1[1] and FDP_ACF.1[1] permits the user box file that has a corresponding object
attribute to the account ID and the user box ID of the subject attribute the operation such as
print, download, transmissions, movement and copy.
<Necessary requirement to manage the group box>
FMT_MAS.1[3] permits the modification operation of the user attribute of the user box that is
set “account ID” to the user who is permitted the access to the group user box.
<Necessary requirement to manage the subject attribute related with the group user box>
FMT_MTD.1[12] restricts the registration of the account ID and account password only to the
administrator. Also, FMT_MTD.1[3] restricts the modification of the account ID and account
password only to the administrator.
FMT_MTD.1[13] restricts the registration of the belonging account assigned to the user, to
the administrator and to the user who is permitted the use of the account.
FIA_SOS.1[7] verifies the quality of the account password .
<Management of the account authentication method>
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FMT_MOF.1[3] restricts the behavior management of the account authentication function
and the stop operation management to the administrator.
<Necessary requirement to keep the administrator secure>
⇒ refer to set.admin
<Necessary requirement to keep the service engineer secure>
⇒ refer to set.service
<Role and controlling function for each management>
As the role of doing these managements, FMT_SMR.1[2] maintains an administrator and
FMT_SMR.1[6] maintains a user permitted the use of the group user box. FMT_SMF.1
specifies these management functions.
This security objective is satisfied by the completion of these multiple functional
requirements.
O.SECURE-PRINT(Secure print file access control)
This security objective limits the print of the secure print file only for the user, who is
permitted the use of the secure print file, and requires various requirements that relate to
the access control.
<Secure print file access control>
FDP_ACC.1[2] and FDP_ACF.1[2] permits the list display operation of every secure print
user box to the task of acting the user who has user ID.
As it must be a user who is permitted the use of the secure print file to print it, FIA_UID.2[4]
and FIA_UAU.2[4] identifies and authenticates that it is a user who is permitted the use of
the secure print file.
FIA_UAU.7 returns “*" for each entered character as feedback protected by the panel and
supports the authentication.
FIA_AFL.1 [8] refuses all input acceptances from the panel for 5 seconds in every failure.
When the authentication failure reaches 1-3 times, FIA_AFL.1 [5] locks the authentication
function for to the concerned secure print file. This lock status is released by the
administrator's release operation.
FMT_MTD.1[3] permits only to the administrator the setting of the threshold of the
authentication failure frequency that is the trial frequency of the failure authentication in
the authentication of the user who is permitted the use of the secure print file.
When FIA_ATD.1 and FIA_USB.1 relate the secure print internal control ID to the task of
acting use, FDP_ACC.1[2] and FDP_ACF.1[2] permit the print operation to the secure print
file that has a corresponding object attribute to the secure print internal control ID of the
subject attribute.
As for secure print internal control ID, FMT_MSA.3[2] gives the value uniquely identified
when the secure print file is registered.
<Secure print password>
FMT_MTD.1[8] permits only to the user the registration of the secure print password used
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for the authentication. FIA_SOS.1[5] verifies the quality of the secure print password.
<Necessary requirement to keep the administrator secure>
⇒ refer to set.admin
<Necessary requirement to keep the service engineer secure>
⇒ refer to set.service
<Role and controlling function for each management>
As the role of doing these managements, FMT_SMR.1[2] maintains an administrator and
FMT_SMR.1[3] maintains a user. Moreover, FMT_SMF.1 specifies these management
functions.
This security objective is satisfied by the completion of these multiple functional
requirements.
z O.CONFIG(Access limitation to an management function)
This security objective limits the setting related to the SMTP server, the setting related to the
DNS server, the setting related to the Enhanced Security function, the backup function, and
the restorations function to the administrator, and needs various requirements to limit the
access to a series of setting function and the management function.
<Management of network setting>
When the administrator attribute is associated with the task of substituting the use,
FDP_ACC.1[3] and FDP_ACF.1[3] permits the task of substituting the user to operate the
SMTP server group object, the DNS server group object and the settings for the MFP address
group object.
<Operation limitation of Backup and restoration function>
When the administrator attribute is related to the task of acting the use, the task of acting
the user is permitted the back-up operation of;
・ the user box files by FDP_ACC.1[1] and FDP_ACF.1[1].
・ the secure print files by FDP_ACC.1[2] and FDP_ACF.1[2].
In addition, the restoration operation is permitted for
・ the encryption passphrase object, the HDD lock password object, SMTP server group object,
DNS server group object and MFP address group object by FDP_ACC.1[3] and FDP_ACF.1[3].
Moreover, the restoration operation is permitted for
・ the encryption passphrase object, the HDD lock password object, the SMTP server group
object, the DNS server group object, and the MFP address group object by FDP_ACC.1[3] and
FDP_ACF.1[3].
Moreover, the restoration operation (modifying operation) of the followings is permitted only
to the administrator.
・the enhanced security setting data by FMT_MOF.1[1]
・ the user attribute of the user box by FMT_MSA.1[1] and FMT_MSA.1[2].
・ the user password by FMT_MTD.1[2].
・ the user ID, the SNMP password, the panel auto logoff time, the authentication failure
frequency, the secure print password, the external authentication setting data, the account
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ID, the account password, the S/MIME certificate, the transmission address data, the
trusted channel function setting data, the belonging account of user, CE authentication lock
time, administrator authentication lock time by FMT_MTD.1[3].
・ the user box password by FMT_MTD.1[4].
FMT_MTD.1[7] permits only to the administrator the backup operation (inquiry operation) of
the SNMP password, the user password, the user box password, and the secure print
password, the account password.
<Operational limitation of Enhanced Security function>
FMT_MOF.1[1] permits only the administrator and service engineer to disable the setting for
the enhanced security function.
<Management of HDD lock password and encryption passphrase>
When the administrator attribute is related to the task of acting the user, FDP_ACC.1[3] and
FDP_ACF.1[3] permit the setting operation to the HDD lock password object and the
encryption passphrase object to the task of acting the user. FIA_SOS.1[4] verifies the quality
of the HDD lock password and the encryption passphrase. In order to change the HDD lock
password and encryption passphrase, FIA_UAU.6 re-authenticates that a user is an
administrator by collating with the registered HDD lock password and encryption Passphrase
object. When the authentication is succeeded, the HDD lock password and the encryption
passphrase are allowed to be changed.
Moreover, when the CE attribute is related to the task of acting the user, FDP_ACC.1[3] and
FDP_ACF.1 [3] permit the setting operation to the HDD lock password object and the
encryption Passphrase object to the task of acting the user.
<Necessary requirement for accessing MIB object>
The SMTP server group object, the DNS server group object and the MFP address group
object exists as an MIB object as well, so that the restriction is necessary even in the access
from the SNMP.
FIA_UID.2[2] and FIA_UAU.2[2] identifies and authenticates that the user who accesses the
MIB object is an administrator.
FIA_AFL.1[3] locks the authentication function to access the MIB object when the failure
authentication reaches 1-3 times. This lock is released by the start of TOE or the lock release
operation by the administrator.
FMT_MTD.1[3] restricts the threshold setting of the unauthorized access detection value that
is the trial frequency of the failure authentication in the administrator authentication using
the SNMP password only to the administrator
FMT_MTD.1[3] restricts the change in the SNMP password to the administrator.
FIA_SOS.1[2] verifies the quality of the SNMP password.
FMT_MTD.1[11] restricts the initialization of the SNMP password only to the administrator
and the service engineer.
FMT_MOF.1[2] restricts the method of the SNMP password authentication function only to
the administrator.
< Operational Limit of Trusted Channel function setting data>
The registration of the Trusted Channel function setting data is permitted only to the
administrator by FMT_MOF.1[12]. The modification of the Trusted Channel function setting
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data is permitted only to the administrator by FMT_MTD.1[3]. The behavior of Trusted
Channel function is permitted only to the administrator by FMT_MOF.1[2].
<Operational Limit for S/MIME function>
The registration of the S/MIME certificate and the transmission address data is permitted
only to the administrator by FMT_MTD.1[12]. The modification of the S/MIME certificate and
the transmission address data is permitted only to the administrator by FMT_MTD.1[3]. The
behavior of the S/MIME function is permitted only to the administrator by the FMT_MOF.1[2].
<Necessary requirements to keep the administrator secure>
⇒ refer to set.admin
<Necessary requirements to keep the service engineer secure>
⇒ refer to set.service
<Role and controlling function for each management>
As the role of doing these managements, FMT_SMR.1[1] maintains a service engineer and
FMT_SMR.1[2] maintains an administrator. Moreover, FMT_SMF.1 specifies these
management functions.
This security objective is satisfied by the completion of these multiple functional
requirements.
z O.OVERWRITE-ALL(Complete over write deletion)
This security objective regulates that it deletes all data areas of HDD and initializes the
concealed information of NVRAM that is set by the user, and requires various requirements
that relate to the deletion.
FNEW_RIP.1 guarantees that these objective information not to be able to use the content of
any previous information by the deletion operation.
This security objective is satisfied by the completion of these multiple functional
requirements.
z O.CRYPT-KEY(Encryption key generation)
This security objective regulates that, when the encryption board is installed, the encryption
key necessary to encrypt all the data written in HDD is generated, and needs various
requirements that relate to the encryption key generation.
Using KonicaMinolta HDD encryption key generation mechanism (SHA-1) according to
KonicaMinolta encryption specification standard, FCS_CKM.1 generates the 128bit
encryption key. KonicaMinolta HDD encryption key generation algorithm is not the general
standard algorithm that is recognized, but it is the algorithm using SHA-1 specified with
FIPS 180-1, and so this is the algorithm with sufficient strength which does not undermine
the entropy of 128 bit, and does not undermine the strength level that is required by security
objective. (Refer to chapter 6 TOE summary specification for the description related to this
algorithm)
This security objective is satisfied by the completion of these multiple functional
requirements.
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z O.CHECK-HDD(Validity confirmation of HDD)
This security objective regulates that it verifies the validity of HDD in order to confirm the
unauthorized HDD doesn't exist, and needs various requirements that relate to the
verification of an external entity from TOE.
FIA_NEW.1 identifies HDD before the action from TOE to HDD, and cancels the scheduled
action when the identification fails.
This security objective is satisfied by the completion of this function requirement.
z O.TRUSTED-PASS(Usage of Trusted Channel)
This security objective generates the Trusted Channel in the transmission and reception such
as a user box file and a secure print file, and the requirement that relates with the Trusted
Channel is necessary. FTP_ITC.1 generates the Trusted Channel according to the
requirement from the remote Trusted IT product, and it is applied to the transmission and
reception, such as the user box file and the secure print file.
This security objective is satisfied by the completion of this function requirement,
z O.CRYPTO-MAIL (Usage of Encryption mail)
This security objective regulates the encryption of a user box file when transmitting the user
box file by e-mail, and various requirements related to the encryption are necessary.
FCS_CKM.1 generates the encryption key (128bit, 168bit, 192bit or 256bit) by using
Pseudorandom number Generation Algorithm according to FIPS 186.
FCS_COP.1 encrypts the user box file by using AES (encryption key: 128bit, 192bit or 256bit)
of FIPS PUB 197 (it becomes a transmission data of S/MIME). Also, the same requirement
encrypts the user box file by using 3-Key-Triple-DES (encryption key: 168bit) of SP800-67.
(By the same token, it becomes a transmission data of S/MIME.)
FCS-COP.1 encrypts these encryption keys are encrypted by RSA of FIPS 186-1 that is a
public key of S/MIME certificate of each destination.
This security objective is satisfied by the completion of these plural function requirements.
z OE.CRYPT(Encryption of HDD)
This security objective regulates that the data stored in HDD is encrypted by the encryption
board that is the entity of a necessary IT environment for the security maintenance of TOE,
and needs various requirements that relate to the encryption.
Applying FCS_COP.1[E], the encryption board encodes and decodes all the written data to
HDD by the 128bit encryption key using AES that conforms to FIPS PUB 197.
This security objective is satisfied by the completion of this function requirement.
z OE.LOCK-HDD(Access control of HDD)
This security objective regulates that it refuses the unauthorized access from MFP other than
the one that is set by the HDD which is the entity of a necessary IT environment for the TOE
security maintenance, and needs various requirements that verify that it is right MFP where
TOE is installed.
By FIA_UAU.2[E], HDD authenticates that the entity accessing to HDD is MFP, which HDD
is installed.
When the failure authentication reaches five times, FIA_AFL.1[E] refuses all the accesses to
HDD concerning reading and writing data.
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This security objective is satisfied by the combination of these multiple functional
requirements.
z OE.FEED-BACK(Feedback of password)
This security objective regulates that the application (used by client PC for accessing to MFP)
that is the entity of a necessary IT environment for the TOE security maintenance offers the
appropriate protected feedback for the entered user password, the entered user box password,
the entered administrator password and the entered account password.
By FIA_UAU.7[E], the application displays “*" for each character as feedback for entered
character data.
This security objective is satisfied by the completion of this function requirement.
The following is the compilation of set such as ①the set of necessary requirement to keep
administrator secure (set.admin), ②the set of necessary requirement to keep service engineer
secure (set.service).
¾ set.admin(Set of necessary requirement to keep administrator secure)
<Identification and Authentication of an administrator>
FIA_UID.2[2] and FIA_UAU.2[2] identifies and authenticates that the accessing user is a
administrator.
FIA_UAU.7 returns “*" for each character entered as feedback protected in the panel, and
supports the authentication.
FIA_AFL.1[8] refuses, in case of the failure authentication tried from the panel, all the input
receipts from the panel for five seconds in every failure. When the failure authentication
reaches 1-3 times, FIA_AFL.1[2] logoffs if it’s under authentication, and locks all the
authentication functions that use the administrator password from then on. The release
function is executed by starting TOE with turning OFF and ON the power supply, so that the
lock is released after the administrator authentication lock time passed.
FMT_MTD.1[3] permits only to the administrator the setting of the threshold of the
authentication failure frequency which is the trial frequency of the failure authentication in
the administrator authentication.<Management of session of identified and authenticated
administrator>
The duration of session of the administrator who is identified and authenticated contributes
to reduce the chance of attacking associated with unnecessary session connection by ending
the session after the panel automatic logoff time elapses by FTA_SSL.3. if it logs in from the
panel. The change in the panel auto logoff time is limited to the administrator by
FMT_MTD.1[3].
<Management of administrator's authentication information>
FIA_SOS.1[1] verifies the quality of the administrator password. Moreover, FIA_SOS.[6]
verifies the quality of session information used to authenticate the administrator via the
network, and FIA_SOS.2 secures the quality of session information that is generated and
used. FMT_MTD.1[6] restricts the change in the administrator password to the administrator
and the service engineer. When the administrator changes the administrator password,
FIA_UAU.6 re-authenticates it. In this re-authentication, when the failure authentication
reaches 1-3 times, FIA_AFL.1[2] logoffs it if it’s under authentication, and releases the
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authentication status of the administrator from then on. And it locks all the authentication
functions to use the administrator password. The release function is executed by starting
TOE with turning OFF and ON the power supply, so that the lock is released after the
administrator authentication lock time passed.
Moreover, FMT_MTD.1[11] restricts the initialization of the administrator password to the
administrator and the service engineer.
<Role and management function for each management>
FMT_SMR.1[1] have service engineer maintain the role to do these management, and
FMT_SMR.1[2] have the administrator do the same. Additionally, FMT_SMF.1 specifies these
management functions.
¾ set.service(Set of necessary requirement to keep service engineer secure)
<Identification and Authentication of a service engineer>
FIA_UID.2[1] and FIA_UAU.2[1] identifies and authenticates that the accessing user is a
service engineer.
FIA_UAU.7 returns "*" every one character entered as the feedback protected in the panel,
and supports the authentication.
FIA_AFL.1[8] refuses all the input receipts from the panel for five seconds at each failure,
and when the failure authentication reaches 1-3 times, FIA_AFL.1[1] logoffs it if it’s under
authentication, and locks all the authentication functions to use the CE password. The secret
lock release function is executed and the CE authentication lock time goes by, so that this lock
status is released.
FMT_MTD.1[3] permits only to the administrator the setting of the threshold of the
authentication failure frequency that is the trial frequency of the failure authentication in the
service engineer authentication. FMT_MTD.1[9] permits only to the service engineer the
setting of the CE authentication lock time.
<Management of service engineer's authentication information>
FIA_SOS.1[1] verifies the quality of the CE password. FMT_MTD.1[9] restricts the change in
the CE password to the service engineer. Moreover, FIA_UAU.6 re-authenticates it. In this
re-authentication, when the failure authentication reaches 1-3 times, FIA_AFL.1[1] releases
the authentication status of the service engineer and locks all the authentication functions to
use the CE password. The secret lock release function is executed and the CE authentication
lock time goes by, so that this lock status is released.
<Role and management function for each management>
FMT_SMR.1[1] maintains the role to do these management as a service engineer.
FMT_SMF.1 specifies these management functions.
FPT_RVM.1 and FPT_SEP.1 are the security function requirements immediately not related
to the security measures policy, though it not included in the explanation of the above-mentioned
sufficiency. But, they are shown to support the security function requirement which is included
in the explanation of the above-mentioned sufficiency in the mutual support described later.
Because these two security function requirements will relate to the security objective that
corresponds to the security function requirement supported respectively by two security function
requirements, the relation with the security objective is consequentially clear.
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8.2.1.3. Necessity of specified IT security function requirement
In this ST, FNEW_RIP.1 and FIA_NEW.1 is stated as an extended requirement. The necessity
that presents these requirements and the validity of the assurance requirement applied in
guaranteeing requirements is described as follows.
z Extended requirement:Necessity of FNEW_RIP.1
Regarding FNEW_RIP.1, FDP_RIP.1 is the closest requirement in the viewpoint of remaining
information protection, but the requirement needs to regulate the protection of not only user
data, but also the TSF data. And so, it is improper in the function requirement concerned that
exists in the class of the user data protection, and it requires the extended requirement.
<Validity of requirement identification structure>
Because this requirement doesn't have the corresponding class in the data protection class of
integration of no division of the TSF data and the user data, a new class named FNEW was
set up, the same family name as the RIP family of the FDP class that indicates the remaining
information protection, and clarifies the identification.
Though the predicted management activity is assumed not to be existed, as for the timing of
information assuming not to be able to recycle in the requirement is stipulated concretely,
especially, the parameter treated as changeability are not guessed in this requirement. In
addition, it is shown that the execution record has been left at the predicted audit activity
with the user identification.
Extended requirement:Necessity of FIA_NEW.1
Regarding FIA_NEW.1, FIA_UID.1 or FIA_UID.2 is the closest requirement in the viewpoint
of identification. But the verification act of HDD doesn't approve the act accessed from an
external entity by TOE, but approval the act that TOE itself assigns to an external entity. It is
improper in the function requirement concerned, and the extended requirement is necessary.
<Validity of requirement identification structure>
Because this requirement is one of the identification requirements, the family named NEW is
set as a family added to the FIA class, and clarifies the identification.
As an activity that is predicted on management, FIA_UID requirement and similar
management items are assumed. Also, an activity that is predicted on audit, FIA_UID
requirement and similar audit item are assumed.
8.2.1.4. Assurance validity of specified IT security function requirement
Two specified function requirements (FNEW_RIP.1, FIA_NEW.1) are not the greatly extended
concept of the function requirement provided by CC part 2, and high contents of novelty. This is
not the one to assume the necessity of presenting the TSP model specially or the possibility of a
potential hiding channel in order to evaluate this function requirement accurately.
Therefore, it is possible to assure sufficiently the validity of the function that these functional
requirements show by the set of the assurance requirement of EAL3, and a special assurance
requirement and the assurance requirement required at EAL4 or higher are not required.
8.2.1.5. Dependencies of the IT Security Functional Requirements
The dependencies of the IT security functional requirements components are shown in the
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following table. When a dependency regulated in CC Part 2 is not satisfied, the reason is
provided in the section for the “dependencies Relation in this ST.”
Table 13 Dependencies of IT Security Functional Requirements Components
N/A:Not Applicable
Functional
Requirements
Component for
this ST
Dependencies on CC Part 2
FCS_CKM.2 or FCS_COP.1,
FCS_CKM.4,
FMT_MSA.2
FCS_CKM.1
FCS_CKM.1 or FDP_ITC.1,
FCS_CKM.4,
FMT_MSA.2
FCS_COP.1
Dependencies Relation in this ST
FCS_COP.1, FCS_COP.1[E]
<The reason not to apply①FCS_CKM.4, ②
FMT_MSA.2>
① The encryption key is regularly kept for the stored
data. Moreover, an arbitrary access to the storage
medium is difficult, and there is no necessity of the
encryption key cancellation.
② TOE does not have the security attribute to be
managed for the encryption key, and so it is not
necessary to regulate a security attribute that is
secure.
FCS_CKM.1 ( only a part of the phenomenon )
The satisfied events: The encryption key for
enciphering the attached file by the S/MIME
communication is generated.
<The reason not to satisfy a part of the FCS_CKM.1
or FDP_ITC.1>
・It seems proper to use FDP_ITC.1 because the
public key to encrypt the encryption key for the
data encryption of S/MIME is imported outside of
TSC, but S/MIME certificate is registered by the
administrator’s operation. In that case, it is
unnecessary to consider whether it passes
thorough the untrusted channel or not. There is
not inevitability to apply the security requirement
(The use under the condition that A.NETWORK is
realized).
・ Also, the attribute information of imported
encryption key doesn’t apply to the security
attribute used for the access control, etc., is not
related to the initialization, etc., and the
application is difficult.
・In FMT_MTD.1[12], it is expressed as registration
of TSF data, and the object of import operation is
assigned to an appropriate role.
・As a result, the event corresponding to the key
management is explained by using not the security
requirement that is showed in the dependencies
but other security requirement, so that it’s no
problem even if this dependencies is not satisfied.
<The reason not apply FCS_CKM.4>
The Encryption Key is stored constantly for the
stored data. The arbitrary access to the storring
media is difficult, so it is not necessary to cancel the
Encryption Key.
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Functional
Requirements
Component for
this ST
Dependencies on CC Part 2
Dependencies Relation in this ST
<The reason not apply FMT_MSA.2>
The regulation of the secure security attribute is
unnecessary because the encryption key of
3-Key-Triple-DES which is generated at every
transmission does not have a security attribute
which should be managed to the encryption key.
FDP_ACC.1[1]
FDP_ACF.1
FDP_ACF.1[1]
FDP_ACC.1[2]
FDP_ACC.1[3]
FDP_ACF.1
FDP_ACF.1
FDP_ACC.1,
FMT_MSA.3
FDP_ACC.1,
FMT_MSA.3
FDP_ACC.1,
FMT_MSA.3
FIA_AFL.1[1]
FIA_AFL.1[2]
FIA_AFL.1[3]
FIA_AFL.1[4]
FIA_AFL.1[5]
FIA_AFL.1[6]
FIA_AFL.1[7]
FIA_AFL.1[8]
FIA_UAU.1
FIA_UAU.1
FIA_UAU.1
FIA_UAU.1
FIA_UAU.1
FIA_UAU.1
FIA_UAU.1
FIA_UAU.1
FIA_ATD.1
FIA_SOS.1[1]
FIA_SOS.1[2]
FIA_SOS.1[3]
FIA_SOS.1[4]
FIA_SOS.1[5]
FIA_SOS.1[6]
None
None
None
None
None
None
None
None
FDP_ACF.1[2]
FDP_ACF.1[3]
FDP_ACC.1[1],
FMT_MSA.3[1]
FDP_ACC.1[2]
FMT_MSA.3[2]
FDP_ACC.1[3]
<The reason not to apply FMT_MSA.3>
There is no necessity for applying this requirement
because the object attribute doesn't exist.
FIA_UAU.2[1]
FIA_UAU.2[2]
FIA_UAU.2[2]
FIA_UAU.2[3]
FIA_UAU.2[4]
FIA_UAU.2[5]
FIA_UAU.2[6]
FIA_UAU.2[1], FIA_UAU.2[2], FIA_UAU.2[3],
FIA_UAU.2[4], FIA_UAU.2[5], FIA_UAU.2[6]
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
FIA_SOS.2
FIA_UAU.2[1]
FIA_UAU.2[2]
FIA_UAU.2[3]
FIA_UAU.2[4]
FIA_UAU.2[5]
FIA_UAU.2[6]
FIA_UAU.6
FIA_UAU.7
None
FIA_UID.1
FIA_UID.1
FIA_UID.1
FIA_UID.1
FIA_UID.1
FIA_UID.1
N/A
FIA_UID.2[1]
FIA_UID.2[2]
FIA_UID.2[3]
FIA_UID.2[4]
FIA_UID.2[5]
FIA_UID.2[6]
None
FIA_UAU.1
FIA_UID.2[1]
FIA_UID.2[2]
FIA_UID.2[3]
FIA_UID.2[4]
FIA_UID.2[5]
None
None
None
None
None
N/A
FIA_UAU.2[1], FIA_UAU.2[2], FIA_UAU.2[3],
FIA_UAU.2[4], FIA_UAU.2[5], FIA_UAU.2[6]
N/A
N/A
N/A
N/A
N/A
FDP_ACF.1[1]
FDP_ACF.1[2]
FDP_ACF.1[3]
FIA_SOS.1[7]
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Functional
Requirements
Component for
this ST
Dependencies on CC Part 2
Dependencies Relation in this ST
FIA_UID.2[6]
None
N/A
FIA_UID.2[7]
FIA_USB.1
None
FIA_ATD.1
FMT_SMF.1,
FMT_SMR.1
FMT_SMF.1,
FMT_SMR.1
N/A
FIA_ATD.1
FMT_SMF.1,
FMT_SMR.1[1], FMT_SMR.1[2]
FMT_SMF.1,
FMT_SMR.1[2]
FMT_MOF.1[3]
FMT_SMF.1,
FMT_SMR.1
FMT_SMF.1,
FMT_SMR.1[2]
FMT_MSA.1[1]
FDP_ACC.1 or FDP_IFC.1,
FMT_SMF.1,
FMT_SMR.1
FDP_ACC.1 or FDP_IFC.1,
FMT_SMF.1,
FMT_SMR.1
FDP_ACC.1[1],
FMT_SMF.1,
FMT_SMR.1[2], FMT_SMR.1[3]
FDP_ACC.1[1],
FMT_SMF.1,
FMT_SMR.1[2], FMT_SMR.1[4]
FDP_ACC.1 or FDP_IFC.1,
FMT_SMF.1,
FMT_SMR.1
FDP_ACC.1[1],
FMT_SMF.1,
FMT_SMR.1[2], FMT_SMR.1[6]
FMT_MSA.1,
FMT_SMR.1
FMT_MSA.1,
FMT_SMR.1
FMT_MSA.1[1], FMT_MSA.1[2],
FMT_SMR.1[3]
FMT_MOF.1[1]
FMT_MOF.1[2]
FMT_MSA.1[2]
FMT_MSA.1[3]
FMT_MSA.3[1]
Neither is applicable.
<The reason not to apply FMT_MSA.1>
This is the internal control ID that is identified
uniquely, and this does not require the management
FMT_MSA.3[2]
FMT_MTD.1[1]
FMT_MTD.1[2]
FMT_MTD.1[3]
FMT_MTD.1[4]
FMT_MTD.1[5]
FMT_MTD.1[6]
FMT_MTD.1[7]
FMT_MTD.1[8]
FMT_MTD.1[9]
FMT_MTD.1[10]
such as change or deletion, after this is assigned once.
FMT_SMF.1,
FMT_SMR.1
FMT_SMF.1,
FMT_SMR.1
FMT_SMF.1,
FMT_SMR.1
FMT_SMF.1,
FMT_SMR.1
FMT_SMF.1,
FMT_SMR.1
FMT_SMF.1,
FMT_SMR.1
FMT_SMF.1,
FMT_SMR.1
FMT_SMF.1,
FMT_SMR.1
FMT_SMF.1,
FMT_SMR.1
FMT_SMF.1
FMT_SMR.1
<FMT_SMR.1>
The assignment of FMT_MSA.3.2 is not applicable.
FMT_SMR.1 is the dependency that is set relating to
the following and so there is no necessity of
application.
FMT_SMF.1,
FMT_SMR.1[2]
FMT_SMF.1,
FMT_SMR.1[2] , FMT_SMR.1[3]
FMT_SMF.1,
FMT_SMR.1[2]
FMT_SMF.1,
FMT_SMR.1[2], FMT_SMR.1[4]
FMT_SMF.1,
FMT_SMR.1[2], FMT_SMR.1[3]
FMT_SMF.1,
FMT_SMR.1[1], FMT_SMR.1[2]
FMT_SMF.1,
FMT_SMR.1[2]
FMT_SMF.1,
FMT_SMR.1[3]
FMT_SMF.1
FMT_SMR.1[1]
FMT_SMF.1
FMT_SMR.1[2], FMT_SMR.1[5]
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Functional
Requirements
Component for
this ST
Dependencies on CC Part 2
Dependencies Relation in this ST
FMT_MTD.1[11]
FMT_SMF.1
FMT_SMR.1
FMT_MTD.1[12]
FMT_SMF.1
FMT_SMR.1
FMT_MTD.1[13]
FMT_SMF.1
FMT_SMR.1
FMT_SMF.1
FMT_SMR.1[1]
FMT_SMR.1[2]
FMT_SMR.1[3]
FMT_SMR.1[4]
FMT_SMR.1[5]
None
FIA_UID.1
FIA_UID.1
FIA_UID.1
FIA_UID.1
FIA_UID.1
FMT_SMF.1
FMT_SMR.1[2]
FMT_SMR.1[6]
N/A
FIA_UID.2[1]
FIA_UID.2[2]
FIA_UID.2[3]
FIA_UID.2[5]
FIA_UID.2[7]
FMT_SMR.1[6]
FPT_RVM.1
FPT_SEP.1
FTA_SSL.3
FIA_UID.1
FIA_UID.2[6]
None
None
None
None
N/A
N/A
N/A
N/A
None
None
FDP_ITC.1 or FCS_CKM.1,
FCS_CKM.4,
FMT_MSA.2
N/A
N/A
FCS_CKM.1
FTP_ITC.1
FNEW_RIP.1
FIA_NEW.1
FIA_UAU.1
FIA_UID.1
<The reason not to apply①FCS_CKM.4, ②
FMT_MSA.2>
① The encryption key is regularly kept for the stored
data. Moreover, an arbitrary access to the storage
medium is difficult, and there is no necessity of the
encryption key cancellation.
② TOE does not have the security attribute to be
managed for the encryption key, it is not necessary
to be regulated a security attribute that is secure.
FIA_UAU.2[E]
N/A
FIA_UAU.1
<The reason not to apply FIA_UID.1>
This regulates the access to HDD installed in MFP.
There are no multiple access routes because the access
to HDD is done through a general IDE interface.
In other words, when the some users access, it is
unnecessary for this processing the authentication
information that each user accessing is needed, and
there is no necessity of the identification of the entity
to access.
FIA_UAU.2[2], FIA_UAU.2[3], FIA_UAU.2[5]
FCS_COP.1[E]
FIA_AFL.1[E]
FIA_UAU.2[E]
FIA_UAU.7[E]
FMT_SMF.1
FMT_SMR.1[1]
FMT_SMR.1[2]
FMT_SMF.1
FMT_SMR.1[2]
8.2.1.6. Mutual Support Correlations of IT Security Functional Requirements
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The IT security function requirements to operate effectively other security functional
requirements which are not specified in the analysis of the dependencies relation of the
functional requirement are shown in the table below.
Table 14 Mutual Support Correlations of IT Security Functional Requirements
N/A:Not Applicable
Functional requirement component
that operates other security functional requirements validly
IT Security
Functional
Requirement
①Bypass
Prevention
②Interference/
Destruction
FMT_MTD.1[3]
FMT_MTD.1[12]
FMT_MTD.1[3]
FMT_MTD.1[12]
N/A
N/A
N/A
FMT_MSA.1[1]
FMT_MSA.1[2]
FMT_MSA.1[3]
FPT_SEP.1
N/A
FCS_COP.1
N/A
FDP_ACC.1[1]
FDP_ACC.1[2]
FDP_ACC.1[3]
FIA_AFL.1[1]
FIA_AFL.1[2]
FIA_AFL.1[3]
FIA_AFL.1[4]
FIA_AFL.1[5]
FIA_AFL.1[6]
FIA_AFL.1[7]
N/A
N/A
N/A
FIA_UAU.2[2]
FIA_UAU.2[3]
FIA_UAU.2[5]
FIA_UAU.2[6]
FIA_UAU.2[2]
FIA_UAU.2[3]
FIA_UAU.2[4]
FIA_UAU.2[6]
FIA_UAU.2[1]
FIA_UAU.2[2]
N/A
N/A
N/A
N/A
N/A
N/A
N/A
FIA_AFL.1[8]
FIA_ATD.1
FIA_SOS.1[1]
FIA_SOS.1[2]
FIA_SOS.1[3]
FIA_SOS.1[4]
FIA_SOS.1[5]
FIA_SOS.1[6]
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
FIA_SOS.1[7]
N/A
FIA_SOS.2
FIA_UAU.2[1]
N/A
FPT_RVM.1
FIA_UAU.2[2]
FPT_RVM.1
FIA_UAU.2[3]
FPT_RVM.1
FDP_ACF.1[2]
FDP_ACF.1[3]
④Disabling
Detection
Prevention
Prevention
FCS_CKM.1
FDP_ACF.1[1]
③Deactivation
FMT_MOF.1[1]
N/A
N/A
N/A
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
N/A
N/A
N/A
FMT_MOF.1[1]
N/A
FPT_SEP.1
FMT_MOF.1[1]
N/A
FPT_SEP.1
FMT_MOF.1[1]
N/A
FMT_MTD.1[3]
FMT_MTD.1[3]
FMT_MTD.1[3]
FMT_MTD.1[3]
FMT_MTD.1[3]
FMT_MTD.1[3]
FMT_MTD.1[3]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[3]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
FMT_MOF.1[1]
N/A
N/A
FMT_MTD.1[9]
FMT_MTD.1[3]
FMT_MTD.1[6]
FMT_MTD.1[7]
FMT_MTD.1[11]
FMT_MTD.1[1]
FMT_MTD.1[2]
N/A
FMT_MOF.1[1]
N/A
N/A
FMT_MOF.1[1]
N/A
FMT_MOF.1[1]
N/A
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Functional requirement component
that operates other security functional requirements validly
IT Security
Functional
Requirement
①Bypass
Prevention
FIA_UAU.2[4]
FPT_RVM.1
FIA_UAU.2[5]
FPT_RVM.1
FIA_UAU.2[6]
FPT_RVM.1
FIA_UAU.6
FIA_UAU.7
FIA_UID.2[1]
FIA_UID.2[2]
FIA_UID.2[3]
FIA_UID.2[4]
FIA_UID.2[5]
FIA_UID.2[6]
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
FIA_UID.2[7]
N/A
FIA_USB.1
FMT_MOF.1[1]
FMT_MOF.1[2]
FMT_MOF.1[3]
FMT_MSA.1[1]
FMT_MSA.1[2]
FMT_MSA.1[3]
FMT_MSA.3[1]
FMT_MSA.3[2]
FMT_MTD.1[1]
FMT_MTD.1[2]
FMT_MTD.1[3]
FMT_MTD.1[4]
FMT_MTD.1[5]
FMT_MTD.1[6]
FMT_MTD.1[7]
FMT_MTD.1[8]
FMT_MTD.1[9]
FMT_MTD.1[10]
FMT_MTD.1[11]
FMT_MTD.1[12]
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
FMT_MTD.1[13]
N/A
FMT_SMF.1
FMT_SMR.1[1]
FMT_SMR.1[2]
FMT_SMR.1[3]
FMT_SMR.1[4]
FMT_SMR.1[5]
N/A
N/A
N/A
N/A
N/A
N/A
②Interference/
Destruction
Prevention
FMT_MTD.1[7]
FMT_MTD.1[3]
FMT_MTD.1[7]
FMT_MTD.1[8]
FMT_MTD.1[4]
FMT_MTD.1[5]
FMT_MTD.1[7]
FMT_MTD.1[3]
FMT_MTD.1[7]
FMT_MTD.1[12]
N/A
N/A
N/A
N/A
FMT_MTD.1[10]
N/A
N/A
FMT_MTD.1[3]
FMT_MTD.1[12]
③Deactivation
④Disabling
Detection
Prevention
FMT_MOF.1[1]
N/A
FMT_MOF.1[1]
N/A
FMT_MOF.1[1]
FMT_MOF.1[3]
N/A
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[3]
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
FMT_MTD.1[3]
FMT_MOF.1[1]
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
N/A
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
FMT_MOF.1[1]
N/A
N/A
N/A
N/A
N/A
N/A
N/A
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
N/A
N/A
N/A
N/A
N/A
N/A
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Functional requirement component
that operates other security functional requirements validly
IT Security
Functional
Requirement
①Bypass
Prevention
②Interference/
Destruction
③Deactivation
④Disabling
Detection
Prevention
Prevention
FMT_SMR.1[6]
N/A
N/A
FMT_MOF.1[1]
FMT_MOF.1[3]
N/A
FPT_RVM.1
FPT_SEP.1
FTA_SSL.3
N/A
N/A
N/A
N/A
N/A
FMT_MTD.1[3]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
N/A
N/A
N/A
FTP_ITC.1
N/A
FMT_MTD.1[3]
FMT_MTD.1[12]
FMT_MOF.1[1]
N/A
FIA_NEW.1
FPT_RVM.1
N/A
FMT_MOF.1[1]
N/A
FNEW_RIP.1
N/A
N/A
N/A
N/A
FCS_COP.1[E]
FIA_AFL.1[E]
FIA_UAU.2[E]
FIA_UAU.7[E]
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
FMT_MOF.1[1]
N/A
N/A
N/A
N/A
①
Bypass Prevention
<By-pass prevention of functional requirement that relates to administrator>
As for FDP_ACF.1[1] that regulates the user box access control, FDP_ACF.1[2] that
regulates the secure print file access control, and FDP_ACF.1[3] that regulates the setting
management access control, the by-pass prevention is supported by FIA_UAU.2[2] that
regulates the administrator’s identification and authentication.
Furthermore, because FIA_UAU.2[2] is called by FPT_RVM.1 without fail, the by-pass
prevention is supported.
<By-pass prevention of functional requirement that relates to service engineer>
As for FDP_ACF.1[3] that regulates the setting management access control, the by-pass
prevention is supported by FIA_UAU.2[1] that regulates the service engineer’s identification
and authentication.
In addition, FIA_UAU.2[1] is called by FPT_RVM.1 without fail, the by-pass prevention is
supported.
<By-pass prevention of functional requirement that relates to user box>
As for FDP_ACF.1[1] that regulates the user box access control, the by-pass prevention is
supported by FIA_UAU.2[3] that regulates the authentication of the user, FIA_UAU/2[6]
that regulates the account authentication.
FIA_UAU.2[5] also contributes to the by-pass
prevention of FDP_ACF.1[1] for the access to the public user box.
In addition, because FIA_UAU.2[3] that regulates the authentication of the user,
FIA_UAU.2[6] that regulates the account authentication and FIA_UAU.2[5] that regulates
the authentication of the user who is permitted the use of the public user box are called by
FPT_RVM.1 without fail, and so the by-pass prevention is supported.
<By-pass prevention of functional requirement that relates to secure print>
As for FDP_ACF.1[2] that regulates the secure print file access control, the by-pass
prevention is supported by FIA_UAU.2[3] that regulates the authentication of the user,
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FIA_UAU.2[6] that regulates the account authentication and FIA_UAU.2[4] that
authenticates the authorized user to use the secure print file.
In addition, because FIA_UAU.2[3] that regulates the authentication of the user,
FIA_UAU.2[6] that regulates the account authentication and FIA_UAU.2[4] that regulates
the authentication of the authorized user to use the secure print file are called by
FPT_RVM.1 without fail, so that the by-pass prevention is supported.
<By-pass prevention of validity verification of HDD>
FIA_NEW.1 that verifies the validity of HDD is called by FPT_RVM.1 without fail, so that
the by-pass prevention is supported.
②
Interference and Destruction Prevention
<Maintenance of user box access control>
The user attribute that is the security attribute of the user box, when "Public" is set, permits
the modification only to the user who is allowed to use the user box or the administrator by
When "User ID" is set, FMT_MSA.1[1] permits the modification only to the user and the
administrator. When “Account ID” is set, FMT_MSA.1[3] permits the modification only to
the user who are allowed to use the account and administrator. Moreover, by FPT_SEP.1,
only the subject of three types such as the authenticated user who is assumed by the user
box access control, the authenticated administrator, and the user who is permitted the use
of the authenticated public user box, can operate the user box and the user box file.
With four requirements in the above-mentioned, FDP_ACF.1[1] is supported in the
prevention of interference and destruction from other illegal subject.
<Maintenance of secure print file access control>
FPT_SEP.1 permits the operation of the secure print file only to the three types of subject
which are the authenticated user who is assumed by the secure print file access control, the
authenticated administrator, and the authenticated user who is permitted the use of secure
print file. FDP_ACF.1[2] is supported in the interference and destruction prevention from
other illegal subject.
<Maintenance of setting management access control>
Only the subject that acts the authenticates administrator who is assumed by the set
management access control and the authenticated service engineer can operate the object
regulated for by the setting management access control by FPT_SEP.1, and the prevention
of an illegal interference and destruction from other illegal subject are supported for
FDP_ACF.1[3].
<Management of CE password>
The modification operation of the CE password has been permitted only to the service
engineer by FMT_MTD.1[9]. This supports the prevention of unauthorized interference and
destruction of FIA_UAU.2[1].
<Management of administrator password>
The modification operation of the administrator password is permitted only to the
administrator and the service engineer by FMT_MTD.1[6]. The initialization of the
administrator password is permitted only to the administrator and the service engineer by
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FMT_MTD.1[11]. This supports the prevention of unauthorized interference and destruction
of FIA_UAU.2[2].
<Management of SNMP password>
The modification operation of the SNMP password is permitted to the administrator by
FMT_MTD.1[3]. The inquiry operation is permitted to the administrator by FMT_MTD.1[7],
and the initialization operation is permitted only to the administrator and the service
engineer by FMT_MTD.1[11]. This supports the prevention of unauthorized interference
and destruction of FIA_UAU.2[2].
<Management of user password>
The registration of the user password is permitted to the administrator by FMT_MTD.1[1].
The modification operation is permitted to the administrator and the user by
FMT_MTD.1[2], and the inquiry operation is permitted only to the administrator by
FMT_MTD.1[7]. This supports the prevention of unauthorized interference and destruction
of FIA_UAU.2[3].
<Management of account password>
The registration of the account password is permitted to the administrator by
FMT_MTD.1[12]. The modification operation is permitted to the administrator by
FMT_MTD.1[3], and the inquiry operation is permitted only to the administrator by
FMT_MTD.1[7]. This supports the prevention of unauthorized interference and destruction
of FIA_UAU.2[6].
<Management of secure print password>
The registration of the secure print password is permitted only to the user by
FMT_MTD.1[8], and the inquiry operation is permitted only to the administrator by
FMT_MTD.1[7]. The modification is permitted only to the administrator by FMT_MTD.1[3].
This supports the prevention of unauthorized interference and destruction of FIA_UAU.2[4].
<Management of user box password>
The registration of the user box password is permitted to the administrator and the user by
FMT_MTD.1[5], and the modification operation is permitted to the administrator and the
user who is permitted the use of the public user box by FMT_MTD.1[4]. The inquiry
operation is permitted only to the administrator by FMT_MTD.1[7]. This supports the
prevention of unauthorized interference and destruction of FIA_UAU.2[5].
<Management of user ID>
The registration of user ID is limited only to the administrator by FMT_MTD.1[10], and
when the external server authentication is used, the user who is not registered in MFP is
automatically registered with successful user authentication. Moreover, FMT_MTD.1[3]
permits the modification operation only to the administrator. This supports the prevention
of unauthorized interference and destruction of FIA_UID.2[3].
<Management of account ID, account name>
The registration of the account ID is permitted only to the administrator by FMT_MTD.1[12].
And the modification operation is permitted only to the administrator by FMT_MTD.1[3],
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Moreover the modification operation of the belonging account of user is permitted only to the
administrator by FMT_MTD.1[3]. This supports the prevention of unauthorized interference
and destruction of FIA_UAU.2[6].
<Management of setting data for the external server authentication>
The setting of the external server authentication setting data used for the external server
authentication is permitted only to the administrator by FMT_MTD.1[10]. This supports the
prevention of unauthorized interference and destruction of FIA_UID.2[7].
<Management of auto logoff time>
FMT_MTD.1[3] permits the modification operation of the panel auto logoff time only to the
administrator. This supports the prevention of unauthorized interference and destruction of
FTA_SSL.3.
<Management of authentication failure frequency threshold>
The modification operation of the authentication frequency failure threshold which is set in
all the authentication activities such as the service engineer authentication, the
administrator authentication, the user authentication, the secure print authentication, the
user authentication, and the MIB object access authentication is permitted only to the
administrator by FMT_MTD.1[3]. This supports the prevention of unauthorized interference
and
destruction
of
FIA_AFL.1[1],
FIA_AFL.1[5], FIA_AFL.1[6],
FIA_AFL.1[2],
FIA_AFL.1[3],
FIA_AFL.1[4],
FIA_AFL.1[7].
<Management of trusted channel function>
The registration of the trusted channel function setting data is restricted only to the
administrator by FMT_MTD.1[12]. Also, the modification operation is permitted only to the
administrator by FMT_MTD.1[3]. This supports the prevention of unauthorized interference
and destruction of FTP_ITC.1.
<Management of CE authentication lock time>
The setting of the CE authentication lock time is permitted only to the service engineer by
FMT_MTD.1[9]. This supports the prevention of unauthorized interference and destruction
of FIA_AFL.1[2].
<Management of administrator authentication lock time>
The setting of the administrator authentication lock time is permitted only to the service
engineer by FMT_MTD.1[3]. This supports the prevention of unauthorized interference and
destruction of FIA_AFL.1[1].
<Management of S/MIME certificate>
The registration of the S/MIME certificate is restricted only to the administrator by
FMT_MTD.1[12]. Also, the modification operation is permitted only to the administrator by
FMT_MTD.1[3]. This supports the prevention of unauthorized interference and destruction
of FCS_CKM.1, FCS_COP.1.
③
Deactivation Prevention
<Maintenance of Enhanced Security function>
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FMT_MOF.1[1] permits only to the administrator and the service engineer the operation
setting of the Enhanced Security function. The Enhanced Security function influences all
the security structures of TOE, and this supports the deactivation prevention of all the
security functions achieved by the security requirements of TOE except FCS_COP.1,
FMT_MOF.1[1], FMT_MOF.1[3], FIA_SOS.1[6], FIA_SOS.2, and FNEW_RIP.1.
<Maintenance of account authentication function>
FMT_MOF.1[3] permits the administrator the operation setting (management of stop
operation) of account authentication function. This supports the deactivation prevention of
FIA_UID.2[6], FIA_UAU.2[6], FIA_AFL.1[7], FMt_SMR.1[6] related with the account
authentication.
④
Disabling Detection
The requirement that supports the disabling detection doesn’t exist. 11
8.2.2. Rational for Minimum Strength of Function
The MFP that is loaded with this TOE is connected to an intra-office LAN with appropriately
controlled connections with external networks. Therefore, there is no possibility that it is directly
attacked by unspecified people via the Internet. As long as it has a strength level that can
counter the threat by users who are users of the TOE and a person who can enter the office and
not user of the TOE as an agent, it is acceptable, as explicitly described in section 3.3. Therefore,
this TOE regulates security objectives by assuming an unskilled attacker and thus, the selection
of the SOF-Basic as the minimum strength of function is reasonable.
8.2.3. Rationale for IT Security Assurance Requirements
This TOE is installed and used in an environment where adequate security is maintained in
terms of the physical, personnel, and connectivity. Nonetheless, adequate effectiveness in the
environment where the TOE is used must be assured. As a general commercial office product,
the execution of tests based on function specifications and high level design, and analysis of the
strength of function and a search for vulnerabilities are required. In addition, it is desirable that
it has a development environment control, a configuration management for the TOE and a
secure distribution procedure. And therefore the selection of EAL3, which provides an adequate
assurance level, is reasonable.
The secure requirement dependency analysis is assumed to be appropriate because the
package EAL has been selected, therefore details are not discussed.
8.2.4. Consistency rationale for the set of IT security functional requirement
The followings show the rationale in which the IT security requirement with a possibility to
compete does not exist.
11
Though this is not shown in the mutual support analysis, FIA_AFL.1 requirement supports respectively
against the attack that aims at the disabling of each authentication function. This is sufficient to maintain the
security objective of this TOE. (This content is specified by the dependency analysis.)
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<IT security functional requirement>
z Though several access control policies are set up by repeating the access control requirement
(FDP_ACC.1 etc.), and it regulates the access control related to the followings, such as ①
user box, ② secure print, ③ MFP addresses. These do not cover each other the same
controlled object by several policies, and so they do not compete each other.
z FNEW_RIP.1 is applied as an extended requirement that regulates the deletion of the
protective assets, but the threat concerning the possibility of an unauthorized deletion is not
targeted in this case because of the concept of emphasis on confidentiality. Therefore, the
requirement for the competing data deletion protection has not been selected at all.
z The structure, that a competition possibility is suggested, doesn't exist from the relations
between requirements by dependency, correlation by mutual support, and the various
analysis of validity of security functional requirement to TOE security objectives.
<IT security assurance requirement>
z EAL that is the assurance package is applied. Therefore, it is confirmed that the possibility of
the competition between security assurance requirements doesn't exist regardless of this ST.
8.3. Rational for TOE Summary Specifications
8.3.1. Rational for the TOE Security Functions
8.3.1.1. Necessity
The conformity of the TOE security functions and the TOE security functional requirements
are shown in the following table. It shows that the TOE security functions correspond to at least
one TOE security functional requirement.
Table 15 Conformity of TOE Security Functions to TOE Security Functional Requirements
F.S/MIME
F.TRUSTED-PASS
F.RESET
F.HDD
F.CRYPT
TOE Security
F.OVERWRITE-ALL
F.PRINT
F.BOX
F.USER
F.SERVICE
F.ADMIN-SNMP
F.ADMIN
TOE Security Function
Functional
Requirement
FCS_CKM.1
FCS_COP.1
FDP_ACC.1[1]
FDP_ACC.1[2]
FDP_ACC.1[3]
FDP_ACF.1[1]
FDP_ACF.1[2]
FDP_ACF.1[3]
FIA_AFL.1[1]
FIA_AFL.1[2]
FIA_AFL.1[3]
FIA_AFL.1[4]
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
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FIA_AFL.1[5]
FIA_AFL.1[6]
●
●
FIA_AFL.1[7]
●
FIA_AFL.1[8]
●
FIA_ATD.1
FIA_SOS.1[1]
FIA_SOS.1[2]
FIA_SOS.1[3]
FIA_SOS.1[4]
FIA_SOS.1[5]
●
●
●
●
FIA_SOS.1[6]
●
FIA_SOS.1[7]
FIA_SOS.2
FIA_UAU.2[1]
FIA_UAU.2[2]
FIA_UAU.2[3]
FIA_UAU.2[4]
FIA_UAU.2[5]
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
FIA_UAU.2[6]
FIA_UAU.6
●
●
FIA_UAU.7
FIA_UID.2[1]
FIA_UID.2[2]
FIA_UID.2[3]
FIA_UID.2[4]
FIA_UID.2[5]
FIA_UID.2[6]
●
●
●
●
●
●
●
●
●
●
●
●
FIA_UID.2[7]
●
FIA_USB.1
FMT_MOF.1[1]
FMT_MOF.1[2]
●
●
●
FMT_MOF.1[3]
●
FMT_MSA.1[1]
FMT_MSA.1[2]
FMT_MSA.1[3]
FMT_MSA.3[1]
FMT_MSA.3[2]
FMT_MTD.1[1]
FMT_MTD.1[2]
FMT_MTD.1[3]
FMT_MTD.1[4]
FMT_MTD.1[5]
FMT_MTD.1[6]
FMT_MTD.1[7]
FMT_MTD.1[8]
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
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F.S/MIME
Requirement
F.TRUSTED-PASS
Functional
F.RESET
F.HDD
F.CRYPT
TOE Security
F.OVERWRITE-ALL
F.PRINT
F.BOX
F.USER
F.SERVICE
F.ADMIN-SNMP
F.ADMIN
TOE Security Function
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F.S/MIME
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F.TRUSTED-PASS
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F.RESET
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F.HDD
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F.CRYPT
F.PRINT
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TOE Security
F.OVERWRITE-ALL
F.BOX
F.USER
F.SERVICE
F.ADMIN-SNMP
F.ADMIN
TOE Security Function
Functional
Requirement
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FMT_MTD.1[9]
FMT_MTD.1[10]
FMT_MTD.1[11]
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FMT_MTD.1[12]
●
FMT_MTD.1[13]
FMT_SMF.1
FMT_SMR.1[1]
FMT_SMR.1[2]
FMT_SMR.1[3]
FMT_SMR.1[4]
FMT_SMR.1[5]
FMT_SMR.1[6]
FPT_RVM.1
FPT_SEP.1
FTA_SSL.3
FTP_ITC.1
FNEW_RIP.1
FIA_NEW.1
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8.3.1.2. Sufficiency
The TOE security functions for the TOE security functional requirements are described.
z FCS_CKM.1
FCS_CKM.1 regulates the various conditions of the encryption key generated along with the
encryption of HDD, use of S/MIME function.
F.CRYPT generates the encryption key of 128bit by using KonicaMinolta HDD encryption key
generation algorithm (SHA-1).
F.S/MIME generates the encryption key of 128bit, 192bit, or 256bit for AES by using the
Pseudorandom number Generation Algorithm. Also, similarly, it generates the encryption key
of 168bit for 3-Key-Triple-DES by using Pseudorandom number Generation Algorithm.
Accordingly, this functional requirement is satisfied.
z FCS_COP.1
FCS_COP.1 regulates the various conditions of the encryption key that is generated along
with the encryption of HDD.
F.S/MIME performs the data encryption by using 3-Key-Triple-DES with the encryption key
of 168bit in the S/MIME function.
Also, it performs the encryption by using AES with the encryption key of 128bit, 192bit or
256bit. The encryption key that is used to encrypt the data is encrypted by using RSA with
the encryption key of 1024bit, 2048bit, 3072bit or 4096bit.
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Accordingly, this functional requirement is satisfied.
z FDP.ACC.1[1]
FDP_ACC.1.[1] regulates the relationship between the subject controlled to the user box and
the user box file which are the object, and the operation.
F.ADMIN performs the user box access control for the task of acting for the user to display
the list of user box and back-up the user box file.
F.BOX performs the user box access control for the task of acting for the user to display the
user box’s list, and to print, transmit, download, move or copy the user box file.
Accordingly, this functional requirement is satisfied.
z FDP_ACC.1[2]
FDP_ACC.1[2] regulates the relationship between the subject controlled to the secure print
file that is the object and the operation.
F.ADMIN performs the secure print file access control for the task of substituting the user to
back up the secure print file.
F.PRINT performs the secure print file control for the task of substituting the user to display
and print the list of secure print file.
Accordingly, this functional requirement is satisfied.
z FDP_ACC.1[3]
FDP_ACC.1[3] regulates the relationship between the subjects controlled to the HDD lock
password object, Encryption passphrase object, SMTP server group object, DNS server group
object and MFP address group object which are the object and the operation.
F.ADMIN performs the setting management access control for the task of substituting the
user to set and restore SMTP server group object, DNS server group object and MFP address
group object.
F.ADMIN-SNMP performs the setting management access control for the task of substituting
the user to set SMTP server group object, DNS server group object and MFP address group
object.
F.SERVICE performs the setting management access control for the task of substituting the
user to set HDD lock password object and encryption passphrase object.
Accordingly, this functional requirement is satisfied.
z FDP_ACF.1[1]
FDP_ACF.1[1] regulates the regulation of relationship between the subject controlled to the
user box and the user box file which are an object, and the operation.
F.ADMIN performs the user box access control to which the following rules are applied.
¾ It permits the administrator the list display operation of the user box on the occasion of the
user box setting.
¾ It permits the administrator the back-up operation of the user box file.
F.BOX performs the user box access control to which the following rules are applied.
¾ It permits the user the list display of the user box (personal user box) that has a
corresponding object attribute to user ID.
¾ It permits the user the operation of the user box file in the selected personal user box such
as the print, the transmission, the download, the movement and the copy.
¾ It permits the user the list display operation of the user box (public user box) that sharing
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is set.
¾ It permits the user who is permitted the use of a user box the operation of user box file in
the selected public user box such as the print, the transmission, the download, the
movement and the copy.
¾ It permits the user the list display of the user box (group user box) that has a
corresponding object attribute to account ID.
¾ It permits the user the operation of the user box file in the selected group user box such as
the print, the transmission, the download, the movement and the copy.
Accordingly, this functional requirement is satisfied.
z FDP_ACF.1[2]
FDP_ACF.1[2] regulates the regulation of the relationship between the subject controlled to
the secure print file which is the object, and the operation.
F.ADMIN performs the secure print file access control to which the following rules are
applied.
¾ It permits the administrator the backup operation of the secure print file.
F.PRINT performs the secure print file access control to which the following rules are applied.
¾ It permits the user the list display operation of the secure print file.
¾ It permits the printing operation of the selected secure print file to the user who is allowed
to use the secure print file.
Accordingly, this functional requirement is satisfied.
z FDP_ACF.1[3]
FDP_ACF.1[3] regulates the regulation of the relationship between the subject controlled to
the HDD lock password object, the encryption passphrase object, the SMTP server group
object, the DNS server group object and the MFP address group object that are the object, and
the operation.
F.ADMIN performs the setting management access control to which the following rules are
applied.
¾ It permits the administrator the setting, the back-up and the restoration of the HDD lock
password object and the encryption passphrase object.
¾ It permits the administrator the setting and the restoration operations of the SMTP server
group object, the DNS server group object and the MFP address group object.
F.ADMIN-SNMP performs the secure print file access control to which the following rules are
applied.
¾ It permits the administrator the setting operation of the SMTP server group object, the
DNS server group object and the MFP address group object.
F.SERVICE performs the setting management access control to which the following rules are
applied.
¾ It permits the service engineer the setting operation of the HDD lock password object and
the encryption passphrase object (initialization operation).
Accordingly, this functional requirement is satisfied.
z FIA_AFL.1[1]
FIA_AFL.1[1] regulates the action for the authentication failure to the service engineer
authentication. In the service engineer authentication for accessing the service mode or
changing the service code, when the authentication failure of failure frequency threshold (1-3
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times) that the administrator set is detected, F.SERVICE logs off from the service mode
authentication status and locks the authentication function.
F.RESET clears the failure frequency and releases the lock status after the secret lock release
function is executed and CE authentication lock time passes, by the reboot of TOE with the
power supply turned OFF and ON.
Accordingly, this functional requirement is satisfied.
z FIA_AFL.1[2]
FIA_AFL.1[2] regulates the action of the authentication failure to the administrator
authentication. In the administrator authentication for accessing the administrator mode or
changing the administrator password, when the authentication failure of failure frequency
threshold (1-3 times) that the administrator set is detected, F.ADMIN logs off from the
authentication status to the administrator mode and locks the authentication function.
F.RESET clears the failure frequency and releases the lock status, after the administrator
authentication lock time passes by the reboot of TOE with the power supply turned OFF and
ON.
Moreover, F.SERVICE clears the authentication failure frequency and releases the lock
status by the lock release function that is available in the service mode.
Accordingly, this functional requirement is satisfied.
z FIA_AFL.1[3]
FIA_AFL.1[3] regulates the action for the authentication failure to the administrator
authentication when accessing to the MIB object by using SNMP. In the authentication using
the SNMP password for accessing to the MIB object, when the authentication failure of
failure
frequency
threshold
(1-3
times)
that
the
administrator
set
is
detected,
F.ADMIN-SNMP denies the access to the MIB object and locks an authentication function.
F.RESET releases the lock status by the reboot of TOE by turning OFF and ON the power
supply that clears the times of failure in each authentication function.
F.ADMIN clears the authentication failure frequency and releases the lock status by the lock
release function that is available in the administrator mode.
Accordingly, this functional requirement is satisfied.
z FIA_AFL.1[4]
FIA_AFL.1[4] regulates the action for the authentication failure to the authentication of the
user. In the user authentication for accessing of user or changing the user password by user,
when the authentication failure of failure frequency threshold (1-3 times) that the
administrator sets is detected, F.USER logs off if it’s under the authentication status and
locks the authentication function of the concerned user from then on.
Accordingly, this functional requirement is satisfied.
F.ADMIN clears the authentication failure frequency and releases the lock status by the lock
release function that is available in the administrator mode.
z FIA_AFL.1[5]
FIA_AFL.1[5] regulates the action for the authentication failure to the authentication of the
user permitted the use of the secure print file. In the authentication of a user permitted the
use of the secure print file, when the authentication failure of failure frequency threshold (1-3
times) that an administrator sets is detected, F.PRINT denies the access to the secure print
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file and locks an authentication function.
F.ADMIN clears the authentication failure frequency and releases the lock status by the lock
release function that is available in the administrator mode.
Accordingly, this functional requirement is satisfied.
z FIA_AFL.1[6]
FIA_AFL.1[6] regulates the action for the authentication failure to the authentication of the
user permitted the use of the public user box. In the authentication for accessing the public
user box and changing a public user box password, when the authentication failure of failure
frequency threshold (1-3 times) that an administrator sets is detected, F.BOX logs off if it’s
under authentication and locks an authentication function.
F.ADMIN clears the authentication failure frequency and releases the lock status by the lock
release function that is available in the administrator mode.
Accordingly, this functional requirement is satisfied.
z FIA_AFL.1[7]
FIA_AFL.1[7] regulates the action for the authentication failure to the account
authentication. In case that the account authentication is operated when the user accesses,
the authentication failure of failure frequency threshold (1-3 times) that the administrator
sets is detected, so that F.USER locks the authentication function of the concerned account
from then on.
F.ADMIN clears the authentication failure frequency and releases the lock status by the lock
release function that is available in the administrator mode.
Accordingly, this functional requirement is satisfied.
z FIA_AFL.1[8]
FIA_AFL.1[8] regulates the action for the authentication failure to the various
authentication on the panel.
F.SERVICE rejects all input receipts from a panel when the authentication failure is detected
in the authentication of service engineer for accessing the service mode.
F.ADMIN rejects all input receipts from a panel when the authentication failure is detected
in the administrator authentication for accessing the administrator mode.
F.USER rejects all input receipts from a panel when the authentication failure is detected in
the user authentication for the access of user from a panel. Moreover, it rejects all input
receipts from a panel when the authentication failure is detected in the account
authentication from a panel.
F.BOX rejects all input receipts from a panel when the authentication failure is detected in
the authentication for accessing to the public user box from a panel.
F.PRINT rejects all input receipts from a panel when the authentication failure is detected in
the authentication of a user permitted the use of the secure print file.
These series of operation is released automatically in five seconds.
Accordingly, this functional requirement is satisfied.
z FIA_ATD.1
FIA_ATD.1 regulates the security attribute related by the user.
F.BOX assigns user box ID to the task of substituting the user.
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F.PRINT assigns the internal control ID of the secure print to the task of substituting the
user.
F.USER assigns account name (account ID) to the task of substituting the user.
Accordingly, this functional requirement is satisfied.
z FIA_SOS.1[1]
FIA_SOS.1[1] regulates the quality of the administrator password and the CE password.
F.ADMIN verifies the quality of the administrator password that is composed of ASCII code
(0x21-0x7E, except 0x22 and 0x2B) in total of 92 characters by eight digits, is not composed of
one kind of character and does not correspond to the value currently set.
F.SERVICE verifies the quality of CE password and the administrator password that is
composed of ASCII code (0x21-0x7E, except 0x22 and 0x2B) in total of 92 characters with
eight digits, is not composed of one kind of characters and does not correspond to the value
currently set.
Accordingly, this functional requirement is satisfied.
z FIA_SOS.1[2]
FIA_SOS.1[2] regulates the quality of the SNMP password.
F.ADMIN verifies that the quality of the SNMP password (Privacy password, Authentication
password) is composed of ASCII code (0x20-0x7E) in total of 95 characters by eight or more
digits. F.ADMIN-SNMP also verifies that the quality of the SNMP password (Privacy
password, Authentication password) is composed of ASCII code (0x20-0x7E) in total of 95
characters with eight or more digits.
Accordingly, this functional requirement is satisfied.
z FIA_SOS.1[3]
FIA_SOS.1[3] regulates the quality of the user password.
F.ADMIN verifies that the quality of the user password is composed of ASCII code
(0x20-0x7E) in total of 95 characters by eight or more digits. Also it verifies that the first 8
characters are not composed of one kind of characters. F.USER verifies that the quality of the
user password is composed of ASCII code (0x20-0x7E) in total of 95 characters by eight or
more digits. Also it verifies that the first 8 characters are not composed of one kind of
characters. Accordingly, this functional requirement is satisfied.
z FIA_SOS.1[4]
FIA_SOS.1[4] regulates the quality of the HDD lock password and the encryption passphrase.
F.ADMIN verifies that the quality of the HDD lock password and the encryption passphrase
is composed of ASCII code (0x21-0x7E, except 0x22, 0x28, 0x29, 0x2C, 0x3A, 0x3B, 0x3C,
0x3E, 0x5B, 0x5C, 0x5D) in total of 83 characters by 20 digits, is not composed of one kind of
characters and does not correspond to the value currently set.
Accordingly, this functional requirement is satisfied.
z FIA_SOS.1[5]
FIA_SOS.1[5] regulates the quality of the secure print password.
F.ADMIN verifies that the quality of the secure print password and the user box password is
composed of ASCII code (0x21-0x7E, except 0x22 and 0x2B) in total of 93 characters by eight
digits and is not composed of one kind of characters.
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F.BOX verifies that the quality of the secure print password and the user box password is
composed of ASCII code (0x21-0x7E, except 0x22 and 0x2B) in total of 93 characters by eight
digits and is not composed of one kind of characters.
F.PRINT verifies that the quality of the secure print password and the user box password is
composed of ASCII code (0x21-0x7E, except 0x22 and 0x2B) in total 93 characters by eight
digits and is not composed of one kind of characters.
Accordingly, this functional requirement is satisfied.
z FIA_SOS.1[6]
FIA_SOS.1[6] regulates the quality of the session information.
F.ADMIN verifies that a space quality is more than 1010 as the quality of session information.
F.BOX verifies that a space quality is more than 1010 as the quality of session information.
F.USER verifies that a space quality is more than 1010 as the quality of session information.
Accordingly, this functional requirement is satisfied.
z FIA_SOS.1[7]
FIA_SOS.1[7] regulates the quality of the account password and the user box password. .
F.ADMIN verifies that the quality of the user box password or the account password is
composed of ASCII code (0x20-0x7E) in total of 95 characters by eight digits. And it verifies
that the first 8 characters are not composed of one kind of characters.
F.BOX verifies that the quality of the user box password is composed of ASCII code
(0x20-0x7E) in total of 95 characters by eight digits. And it verifies that the first 8 characters
are not composed of one kind of characters.
Accordingly, this functional requirement is satisfied.
z FIA_SOS.2
FIA_SOS.2 regulates the generation of session information and its quality.
F.ADMIN generates the secrets that are the space quality of 1010 or more to session
information in the administrator authentication.
F.BOX generates the secrets that are the space quality of 1010 or more to session information
in the user box authentication.
F.USER generates the secrets that are the space quality of 1010 or more to session
information in the user authentication.
Accordingly, this functional requirement is satisfied.
z FIA_UAU.2[1]
FIA_UAU.2[1] regulates the authentication of the service engineer.
F.SERVICE authenticates that the user who accesses the service mode by using the CE
password is the service engineer.
Accordingly, this functional requirement is satisfied.
z FIA_UAU.2[2]
FIA_UAU.2[2] regulates the authentication of the administrator.
F.ADMIN authenticates that the user who accesses the administrator mode by using the
administrator password is the administrator.
F.ADMIN-SNMP authenticates that the user who accesses the MIB object by using the
SNMP password (Privacy password, Authentication password) is the administrator.
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Accordingly, this functional requirement is satisfied.
z FIA_UAU.2[3]
FIA_UAU.2[3] regulates the authentication of the User.
F.USER authenticates that the user is the user who is registered by using the user password
that is set to each user.
Accordingly, this functional requirement is satisfied.
z FIA_UAU.2[4]
FIA_UAU.2[4] regulates the authentication of the authorized user to use the secure print file.
F.PRINT authenticates that the user is the authorized user to use the secure print file by
using the secure print password that is set to each file.
Accordingly, this functional requirement is satisfied.
z FIA_UAU.2[5]
FIA_UAU.2[5] regulates the authentication of the authorized user to use the public user box.
F.BOX authenticates that the user is the authorized user to use the public user box by using
the user box password that is set to each user box.
Accordingly, this functional requirement is satisfied.
z FIA_UAU.2[6]
FIA_UAU.2[5] regulates the authentication of the account.
When the method of the account authentication is the method not synchronized, F.USER
certifies the user who is permitted the use of the account with an account password that is set
for each account.
Accordingly, this functional requirement is satisfied.
z FIA_UAU.6
FIA_UAU.6 regulates the re-authentication for the important operation such as changing a
password.
F.ADMIN re-authenticates the administrator at the operation for the change of the
administrator password. Along with the change operation of the HDD lock password and
encryption passphrase, by collating the registered HDD lock password and registered
encryption passphrase, it re-authenticates the administrator who has known each of
confidential information.
F.SERVICE re-authenticates the service engineer at the operation of the change of the CE
password.
Accordingly, this functional requirement is satisfied.
z FIA_UAU.7
FIA_UAU.7 regulates the return of “*" as the feedback under the authentication.
F.ADMIN returns “*" for each character for entered administrator password from the panel in
the authentication and re-authentication of administrator, and prevents a direct display of
the administrator password.
F.SERVICE returns “*" for each character for the entered CE password from the panel in the
authentication and re-authentication of the service engineer, and prevents a direct display of
the CE password.
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F.PRINT returns “*" for each character for the entered secure print password from the panel in
the authentication of the authorized user who can use the secure print file, and prevents the
direct display of the secure print password.
F.USER returns "*" for each character for the entered user password from the panel in the
authentication of the user, and prevents a direct display of the user password.
Moreover, it returns
"*" for each character for the entered account password from the panel
in the authentication of the account, and prevents a direct display of the of the account
password.
F.BOX returns "*" for each character for the entered
user box password from the panel in the
authentication of the user who is permitted the use of the public user box, and prevents a
direct display of the user box password.
Accordingly, this functional requirement is satisfied.
z FIA_UID.2[1]
FIA_UID.2[1] regulates the identification of the service engineer.
F.SERVICE identifies the user who accesses the service mode is a service engineer.
Accordingly, this functional requirement is satisfied.
z FIA_UID.2[2]
FIA_UID.2[2] regulates the identification of the administrator.
F.ADMIN identifies the user who accesses the administrator mode is an administrator.
F.ADMIN-SNMP identifies the user, who accesses the MIB object, is an administrator.
Accordingly, this functional requirement is satisfied.
z FIA_UID.2[3]
FIA_UID.2[3] regulates the identification of the user.
F.USER identifies the user who is registered by the user ID that is set to each user.
Accordingly, this functional requirement is satisfied.
z FIA_UID.2[4]
FIA_UID.2[4] regulates the identification of the user who is permitted the use of the secure
print file.
F.PRINT identifies a user who is permitted the use of the secure print file by selecting the
secure print file as an operation target.
Accordingly, this functional requirement is satisfied.
z FIA_UID.2[5]
FIA_UID.2[5] regulates the identification of the user who is permitted the use of the public
user box.
F.BOX identifies the user who is permitted the use of the public user box by selecting the user
box as the operation target.
Accordingly, this functional requirement is satisfied.
z FIA_UID.2[6]
FIA_UID.2[6] regulates the identification of the account.
F.USER identifies as a registered account by the account ID that is set for each account, when
the method of the account authentication is the method not synchronized.
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Accordingly, this functional requirement is satisfied.
z FIA_UID.2[7]
FIA_UID.2[7] regulates the identification of the external server.
F.USER identifies the external server which is accessed for the inquiry of user information
when the external server authentication is selected for the user authentication method.
Accordingly, this functional requirement is satisfied.
z FIA_USB.1
FIA_USB.1 regulates the security attribute association to subject that substitutes the user.
F.PRINT associates the "secure pint internal control ID" of the concerned secure print file to
the task of substituting the user when authenticated for the access to the secure print file.
F.BOX associates the "User Box ID" of the concerned user box or the concerned user box file to
the task of substituting the user when authenticated for the access to the user box or the user
box file.
F.USER associates the "Account ID" to the task of substituting the user in the case that the
account authentication is the method not synchronized when authenticated for the account
and in the case that the account authentication is the synchronized method when
authenticated for the user.
Accordingly, this functional requirement is satisfied.
z FMT_MOF.1[1]
FMT_MOF.1[1] regulates the behavior management of the enhanced security function.
F.ADMIN provides the settings of the enhanced security function in the administrator mode,
and manages the stop operation of the concerned function. In addition, although it is possible
to change the back-up data acquired by back-up operation and to set off the Enhanced
Security function as a result of performing the restoration operation, F.ADMIN limits the
back-up and restoration operation only to the administrator. Although the execution of the
HDD logical format and the overwrite deletion function of all area makes the Enhanced
Security setting invalid, F.ADMIN permits the operation only to the administrator.
F.SERVICE offers the HDD logical format function, HDD physical format function, the HDD
installation setting function and the initialization function to make the Enhanced Security
function invalid in the service mode along with execution and manages the setting-off
operation of the Enhanced Security function.
Accordingly, this functional requirement is satisfied.
z FMT_MOF.1[2]
FMT_MOF.1[2] regulates the behavior management of the Trusted Channel function, the
S/MIME function, the user authentication and the SNMP password authentication.
F.ADMIN offers a setting function of the user authentication function, a setting function of
the encryption method of the Trusted Channel function, a setting function of the encryption
method of the S/MIME function in the administrator mode, and permits the setting of the
operational mode for each function.
F.ADMIN-SNMP permits the administrator who is authenticated by the SNMP password the
setting operation of the SNMP password authentication.
Accordingly, this functional requirement is satisfied.
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z FMT_MOF.1[3]
FMT_MOF.1[3] regulates the behavior management and the stop operation management of
the account authentication function.
F.ADMIN offers a setting function of the account authentication function in the
administrator mode and permits the operation of a setting of the operational mode of each
function and a stop function of the account authentication.
Accordingly, this functional requirement is satisfied.
z FMT_MSA.1[1]
FMT_MSA.1[1] regulates the management of the user attribute of user box (When user ID is
set).
F.ADMIN permits the change operation of the user attribute that is set to the user box in the
administrator mode. Also, F.ADMIN permits the administrator the back-up and restoration
operation, so that it is possible to change the back-up data which is acquired by the back-up
operation and to change the user attribute of the user box as a result of restoration.
In addition, when a user concerned owns a personal user box by the deletion operation of
registered user, the user box is changed to the public user box.
F.BOX permits the authenticated user the change of the user attribute of the user box where
the user ID of the user concerned is set.
Accordingly, this functional requirement is satisfied.
z FMT_MSA.1[2]
FMT_MSA.1[2] regulates the management of the user attribute of user box (When public is
set).
F.ADMIN permits the administrator the back-up and restoration operation, so that it is
possible to change the back-up data which is acquired by the back-up operation and to change
the user attribute of the user box as a result of restoration.
F.BOX permits the change of the user attribute of the user box where the public is set to the
authenticated user who is permitted the use of the public user box.
Accordingly, this functional requirement is satisfied.
z FMT_MSA.1[3]
FMT_MSA.1[3] regulates the management of the user attribute of the user box ( When the
account ID is set).
F.ADMIN permits the change operation of the user attribute that is set to the user box in the
administrator mode. Also F.ADMIN permits the administrator the back-up and restoration
operation, so that it is possible to change the back-up data which is acquired by the back-up
operation and to change the user attribute of the user box as a result of restoration.
In addition, when a user concerned owns a group user box by the deletion operation of
registered user, the user box is changed to the public user box.
F.BOX performs the authenticated user to change the user attribute of the group user box
that is set the account ID of the concerned user to the user attribute of the user box and
corresponds with the belonging account of user whom the account ID was authenticated.
Accordingly, this functional requirement is satisfied.
z FMT_MSA.3[1]
FMT_MSA.3[1] regulates the default value of the user attribute that is the security attribute
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given when the user box is generated.
F.ADMIN sets "public" to the user attribute of the user box as a default value in the user box
registration operation that is executed in the administrator mode. User is permitted the
change this to any value (user ID or account ID of the registered user).
F.BOX sets "public" to the user attribute of the user box as a default value in the user box
registration operation that is executed by the authenticated user. User is permitted the
change this to any value (user ID or account ID of the registered user).
In addition, when the job which is stored to the user box which specifies the unregistered user
box is performed, the "User ID" of the user who executes the job concerned is set as a default
value and is stored to the unregistered user box. (The case of the specifying the unregistered
user box cannot change the user attribute because there is no timing to set an initial value
where the default value is changed.)
Accordingly, this functional requirement is satisfied.
FMT_MSA.3[2]
FMT_MSA.3[2] regulates the secure print internal control ID that is set at the time of
registration of secure print file.
F_PRINT grants the secure print internal control ID that is identified uniquely to the
concerned secure print file at the time of registration of secure print file.
Accordingly, this functional requirement is satisfied.
z FMT_MTD.1[1]
FMT_MTD.1[1] regulates the management of the user password.
When "Machine authentication" is selected as the method of the user authentication,
F.ADMIN offers the registration operation of the user password regarding the user
registration in the administrator mode. In addition, F.ADMIN permits the administrator the
back-up and restoration operation, so that it is possible to change the back-up data which is
acquired by back-up operation and to register the user password as a result of performing the
restoration operation.
Accordingly, this functional requirement is satisfied.
z FMT_MTD.1[2]
FMT_MTD.1[2] regulates the management of the user password.
When "Machine authentication" is selected as the method of the user authentication,
F.ADMIN offers the change of the user password registered in the administrator mode. In
addition, F.ADMIN permits the administrator back-up and restoration operation, so that it is
possible to change the back-up data which is acquired by back-up operation and to change the
user password as a result of performing the restoration operation.
When "Machine authentication" is selected as the method of the user authentication, F.USER
permits the authenticated user the change of user’s own password.
Accordingly, this functional requirement is satisfied.
z FMT_MTD.1[3]
FMT_MTD.1[3] regulates the management of a user ID, a SNMP password, the panel auto
logoff time, the failure number of times threshold, the setting data of the external server
authentication, a secure print password, a account ID, a account password, the S/MIME
certificate, the transmission address data, the setting data of the trusted channel function,
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the belonging account of user and the administrator authentication lock time.
F.ADMIN permits the operation to change the SNMP password, the panel auto logoff time,
the setting data of authentication failure frequency threshold, the setting data of the external
server authentication, the account ID, the account password, the S/MIME certificate, the
transmission address data, the setting data of the trusted channel function, the belonging
account of user and the administrator authentication lock time in the administrator mode. In
addition, F.ADMIN permits the administrator the back-up and restoration operation, and so
it is possible to change the back-up data which is acquired by back-up operation, and to
change user ID, a SNMP password, the panel auto logoff time, the failure number of times
threshold, a secure print password, the setting data of the external server authentication, the
account ID, the account password, the S/MIME certificate, the transmission address data, the
setting data of the trusted channel function, the belonging account of user and the
administrator authentication lock time as a result of performing the restoration operation.
F.ADMIN-SNMP permits the change operation of the SNMP password to the administrator
authenticated by the SNMP password.
Accordingly, this functional requirement is satisfied.
z FMT_MTD.1[4]
FMT_MTD.1[4] regulates the management of the user box password.
F.ADMIN permits the change operation of the user box password that is set to the public user
box in the administrator mode. In addition, F.ADMIN permits the administrator the back-up
and restoration operation, and so it is possible to change the back-up data which is acquired
by back-up operation, and to change the user box password as a result of performing the
restoration operation.
F.BOX permits the change operation of the user box password to the authenticated user as
the user who is permitted the use of the user box concerned.
Accordingly, this functional requirement is satisfied.
z FMT_MTD.1[5]
FMT_MTD.1[5] regulates the management of the user box password.
F.ADMIN permits the registration operation of the user box in the administrator mode, that
is, the registration operation of the user box password that is set to the public user box. In
addition, F.ADMIN permits the administrator the back-up and restoration operation, and so
it is possible to change the back-up data which is acquired by back-up operation, and to
register the user box password as a result of performing the restoration operation.
F.BOX permits the authenticated user the registration operation of the user box, that is, the
registration operation of the user box password that is set to the public user box.
Accordingly, this functional requirement is satisfied.
z FMT_MTD.1[6]
FMT_MTD.1[6] regulates the management of the administrator password.
F.ADMIN permits the change operation of the administrator password in the administrator
mode. It is possible to change the CE authentication lock time as a result of performing the
back-up and the restoration operation.
F.SERVICE permits the change operation of the administrator password in the service mode.
Accordingly, this functional requirement is satisfied.
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z FMT_MTD.1[7]
FMT_MTD.1[7] regulates the management of the SNMP password, the User password, the
User box password, the Secure Print password and the account password.
F.ADMIN permits the administrator the back-up and restoration operation, and so it is
possible to browse the SNMP password, the User password, the User box password, the
Secure Print password and the account password by means of the back-up data which is
acquired by back-up operation.
Accordingly, this functional requirement is satisfied.
z FMT_MTD.1[8]
FMT_MTD.1[8] regulates the management of the Secure print password.
F.PRINT permits the registration of the secure print password to the user along with the
registration of the secure print file.
Accordingly, this functional requirement is satisfied.
z FMT_MTD.1[9]
FMT_MTD.1[9] regulates the management of the CE password and the CE authentication
lock time.
F.SERVICE permits the change operation of the CE password and the CE authentication lock
time in the service mode.
Accordingly, this functional requirement is satisfied.
z FMT_MTD.1[10]
FMT_MTD.1[10] regulates the management of the user ID.
F.ADMIN permits the registration of the user ID in the administrator mode.
F.USER registers the user ID of the authenticated user, when the "External server
authentication" is selected for the user authentication method and if the user who succeeds in
the user authentication is not registered in the MFP. (This is equal to the registration to an
external server.)
Accordingly, this functional requirement is satisfied.
z FMT_MTD.1[11]
FMT_MTD.1[11] regulates the management of the administrator password and the SNMP
password.
F.ADMIN permits the initialization operation of the administrator password and the SNMP
password, that is performed along with the execution of the overwrite deletion operation of all
area in the administrator mode.
F.SERVICE permits the initialization operation of the administrator password and the
SNMP password, which is performed along with the execution of the initializing function in
the service mode.
Accordingly, this functional requirement is satisfied.
z FMT_MTD.1[12]
FMT_MTD.1[12] regulates the management of the account ID, the account password, the
S/MIME certificate, the transmission address data and the setting data of the trusted
channel function.
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F.ADMIN permits the registrations operation of the account ID, the account password, the
S/MIME certificate, the transmission address data and the setting data of the trusted
channel function in the administrator mode.
Accordingly, this functional requirement is satisfied.
z FMT_MTD.1[13]
FMT_MTD.1[13] regulates the management of the belonging account.
F.ADMIN permits the registration setting operation of the belonging account related with the
user in the administrator mode.
F.USER sets the concerned account as the belonging account of user by the authentication
success when a user is authenticated as the user who is permitted the use of the account in
the account authentication.
Accordingly, this functional requirement is satisfied.
z FMT_SMF.1
FMT_SMF.1 specifies the security management function.
F.ADMIN provides the following security management functions.
¾ Operation setting function of user authentication function
¾ Operation setting function of account authentication function
¾ Operation setting function of trusted channel function (Encryption method setting, etc.)
¾ Operation setting function of S/MIME function (Encryption method setting, etc.)
¾ Setting function of authentication failure frequency threshold
¾ Back-up and restoration function
It consequentially corresponds to the inquiry function of the following TSF data.
・SNMP password
・User password
・User box password
・Secure Print password
・Account password
It also corresponds to the modification function of the following TSF data.
・SNMP password
・User password
・User box password
・Secure print password
・Account password
・User ID
・User attribute of the user box
・Panel auto log-off time
・Operational setting data of the Enhanced Security function
・Authentication failure frequency threshold of the authentication operation prohibited
function
・Account ID
・S/MIME certificate
・Transmission address data
・Setting data of the Trusted Channel function
・Belonging Account of user
・CE authentication lock time
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・Administrator authentication lock time
¾ Stop function of the Enhanced Security function
・Operational setting function of the Enhanced Security function
・HDD logical format function
¾ Registration/Modification function of the user attribute of the user box
¾ Modification function of the administrator password
¾ Registration/Modification function of the user box password
¾ Registration function of the User ID
¾ Registration/Modification function of the User password when "Machine authentication" is
selected as the method of the user authentication
¾ Modification function of the SNMP password (Privacy password and Authentication
password)
¾ Operational setting function of the SNMP password authentication function
¾ Setting function of the Panel auto logoff time
¾ Registration/Modification function of the account ID and the account password
¾ Registration/Modification function of the S/MIME certificate
¾ Registration/Modification function of the transmission address data
¾ Registration/Modification function of the setting data of the Trusted Channel function
¾ Registration/Modification function of the belonging account related with a user
¾ Modification function of the administrator authentication lock time
¾ Lock release function
This offers the following authentication functions.
・Authentication function in the access to the MIB object
・Authentication function in the access to the Public user box
・Authentication function in the access to the secure print
・User authentication function
・Account authentication function
F.ADMIN-SNMP offers security functions.
¾ Modification function of the SNMP password (Privacy password and Authentication
password)
¾ Operational setting function of the authentication of SNMP password
F.SERVICE offers the following security management functions.
¾ Modification function of the CE password
¾ Lock release function of the administrator authentication
¾ Modification function of the CE authentication lock time
¾ Modification function of the administrator password
¾ Initialization function of the administrator password
・Initialization function
¾ Initialization function of the SNMP password (Privacy password and Authentication
password)
・Initialization function
¾ Stop function of the Enhanced Security function
・HDD logical format function
・HDD physical format function
・HDD installation setting function
・Initialization function
F.USER offers the following security management functions.
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¾ Modification function of user’s own user password when "Machine authentication" is
selected as the method of the user authentication
¾ Automatic registration of the User ID for an unregistered user in MFP by the External
server when the "External server authentication" is selected as the method of the user
authentication
¾ Registration function of the account name when the account name is unregistered in the
case that the account authentication method is the method not synchronized.
F.BOX offers the following security management functions.
¾ Modification function of the user attribute of the user box
・Modification of a personal user box by the user (User ID ⇒ Public or Other User ID or
Account ID)
・Modification of a public user box by the user who is permitted the use of the public user
box (Public ⇒ User ID or Account ID)
・Modification of a group user box by the user who is permitted the use of the group user
box (Account ID ⇒ Public or User ID or Other Account ID)
¾ Overwrite function of the default value of the user attribute of the user box
¾ Registration/Modification of the user box password
¾ Automatic registration of a personal user box by the stored job in the user box that
specifies unregistered user box by the user.
F.PRINT offers the following security management functions.
¾ Registration of the Secure Print password
F.ADMIN and F.OVERWRITE-ALL offer the following security management functions.
¾ Stop function of the Enhanced Security function
・Overwrite deletion function of all area
¾ Initialization of the administrator password
・Overwrite deletion function of all area
¾ Initialization of the SNMP password (Privacy password and Authentication password)
・Overwrite deletion function of all area
Accordingly, this functional requirement is satisfied.
z FMT_SMR.1[1]
FMT_SMR.1[1] regulates the role as the service engineer.
F.SERVICE recognizes the user who is authenticated by the CE password as a service
engineer.
Accordingly, this functional requirement is satisfied.
z FMT_SMR.1[2]
FMT_SMR.1[2] regulates the role as an administrator.
F.ADMIN recognizes the user who is authenticated by the administrator password as an
administrator.
F.ADMIN-SNMP recognizes the user who is authenticated by the SNMP password(Privacy
password and Authentication password)as an administrator.
Accordingly, this functional requirement is satisfied.
z FMT_SMR.1[3]
FMT_SMR.1[3] regulates the role as a user.
F.USER recognizes the user who is authenticated by the user password as a user.
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The user who is authenticated as a user by F.USER is recognized as a user similarly by
succeeding to F.BOX and F.PRINT.
Accordingly, this functional requirement is satisfied.
z FMT_SMR.1[4]
FMT_SMR.1[4] regulates the role as a user who is permitted the use of the user box.
F.BOX recognizes the user who is authenticated by the user box password as the authorized
user who can use the public user box.
Accordingly, this functional requirement is satisfied.
z FMT_SMR.1[5]
FMT_SMR.1[5] regulates the role as an external server.
F.USER recognized the reference to the user information as an external server when it is
under the external server authentication.
Accordingly, this functional requirement is satisfied.
z FMT_SMR.1[6]
FMT_SMR.1[6] regulates the role as a user who is permitted the use of the account.
F.USER recognizes as a user who is permitted the use of the account by the account name of
the user concerned when the user authenticated in the case that the account authentication
method is the synchronized method. It recognizes as a user who is permitted the use of the
account when the account authenticated in the case of the account authentication method not
synchronized.
Accordingly, this functional requirement is satisfied.
FPT_RVM.1
FPT_RVM.1 regulates to support that a corresponding TSP execution function must be called
before each TOE security function is permitted to start its operation.
F.ADMIN definitely activates "Administrator authentication function" of which performance
is indispensable, before the use of various functions that can be performed only by
administrator is permitted.
F.ADMIN-SNMP definitely activates "Administrator authentication function" of which
performance is indispensable, before the use of network functions that can be performed only
by administrator is permitted.
F.SERVICE definitely activates "Service engineer authentication function" of which
performance is indispensable, before the use of various functions that can be performed only
by the service engineer is permitted.
F.USER definitely activates "User authentication function" of which performance is
indispensable, before the use of various functions that can be performed only by the user is
permitted. It surely starts ”Account authentication function” when the user access, in the case
that the account authentication method is the synchronized authentication method and in the
case that the account name is not registered to the user in the method not synchronized.
F.BOX definitely activates "Authentication function by the user box password" of which
performance is indispensable, before the use of various functions that can be performed only
by the authorized user who can use the public user box is permitted.
F.PRINT definitely activates "Authentication function by the secure print password" of which
performance is indispensable, before the use of various functions that can be performed only
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by the authorized user who can use the secure print is permitted.
F.HDD definitely activates "Validity verification function of HDD" of which performance is
indispensable, before writing HDD is permitted when HDD lock function is activated.
Accordingly, this functional requirement is satisfied.
z FPT_SEP.1
FPT_SEP.1 regulates maintaining of security domains for protecting against interference and
tampering by subjects who cannot be trusted and regulates separating of security domains of
subjects.
F.ADMIN maintains the administrator authentication domain that is provided various
functions permitted to operate only by administrator, and it does not permit the interference
by the unauthorized subject.
F.ADMIN-SNMP maintains the administrator authentication domain that is provided
various functions permitted to operate only by the administrator who is authenticated with
the SNMP password, and it doesn't permit the interference by the unauthorized subjects.
F.USER maintains the user authentication domain that is provided various functions
permitted to operate only by the authenticated user, and it doesn't permit the interference by
the unauthorized subject.
F.BOX maintains the user box authentication domain that is provided various functions
permitted to operate only by the authorized user who can use the public user box by the
authentication of the user box password, and it doesn't allow the interference by the
unauthorized subject.
F.PRINT maintains the secure print file authentication domain that is provided various
functions permitted to operate only by a user who is permitted to use the secure print file by
the authentication of the secure print password, and it doesn't allow the interference by the
unauthorized subject.
F.SERVICE maintains the service engineer authentication domain that is provided various
functions permitted to operate only by the service engineer, and it doesn't allow the
interference by the unauthorized subject.
Accordingly, this functional requirement is satisfied.
z FTA_SSL.3
FTA_SSL.3 regulates the forced termination of a session to an administrator accessing from a
panel.
F.ADMIN logs off automatically if the “panel auto log-off time” elapses from the last operation
at the time of access from the panel by the administrator, and denies the access to the
administrator authentication domain.
F.USER logs off automatically if the “panel auto log-off time” elapses from the last operation
at the time of access from the panel by the administrator, and denies the access to the user
authentication domain.
Accordingly, this functional requirement is satisfied.
z FTP_ITC.1
FTP_ITC.1 regulates the Trusted Channel.
F.TRUSTED-PASS generates the Trusted Channel by SSL/TSL responding to the request
from the Trusted IT product, and protects the communication data of the secure print file, the
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user box file or the image file that becomes the user box file in secure.
Accordingly, this functional requirement is satisfied.
z FNEW_RIP.1
FNEW_RIP.1 regulates that the object and the TSF data, that are targeted in the explicit
deletion operation can not be restored.
F.OVERWRITE-ALL deletes the user box file, the secure print file, the on-memory image file,
the stored image file, the remaining image file, the image related file, the transmission
address data file, the user ID, the user password, the user box password, the secure print
password, the remaining TSF data, the account ID, the account password and the S/MIME
certificate by performing the overwrite deletion to all area of HDD by means of the specified
method of overwrite deletion.
In addition, it initializes the NVRAM administrator password and the SNMP password, and
sets OFF the operations of the HDD lock function and the Encryption function.
Moreover, it deletes the setting data of the Trusted Channel function.
Accordingly, this functional requirement is satisfied.
z FIA_NEW.1
FIA_NEW.1 regulates the user identification before TSF takes any action to the user.
F.HDD provides the function to check the HDD status if HDD lock password is set, and if the
HDD lock password is not set, it doesn't perform the process of writing and reading to HDD.
Accordingly, this functional requirement is satisfied.
8.3.2. Rational for TOE Security Strength of Function
The TOE security functions having a probabilistic/permutational mechanism are as follows.
①
Administrator password authentication mechanism offered by F.ADMIN
②
CE authentication mechanism offered by F.SERVICE
③
Secure print password authentication mechanism offered by F.PRINT
④
User box password authentication mechanism offered by F.BOX
⑤
SNMP authentication mechanism offered by F.ADMIN-SNMP
⑥
User authentication mechanism offered by
⑦
HDD Lock password collation mechanism offered by F.ADMIN
⑧
Encryption Passphrase collation mechanism offered by F.ADMIN
⑨
Account Authentication mechanism offered by F.USER
It used the password composed from ①&② an 8-digits and 92 kinds of character, ③ an
8-digits and 93 kinds of character, ⑤&⑥ an 8-digits and 95 kinds of character, ④&⑨ an
8-digits and 95 kinds of character, and ⑦&⑧ an 20-digits and 83 kinds of character. Among
these, ① ~ ⑥ , ⑨
locks the authentication function by the continuous three times of
authentication failure by operating the authentication operation prohibition function.
The ①, ④ and ⑥ use the session information secretly in access via network. The secrets use
the value of 1010 or more that is generated by TOE. Moreover, it uses the session information
with the value of 1010 or more that is given externally.
Accordingly, as claimed in Section 6.2, the strength of function of mechanisms adequately
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satisfies the SOF-Basis, and it is consistent with the minimum strength of function: SOF-Basic
that is claimed for the TOE security functional requirement for the security strength of function,
stipulated in item 5.1.2.
8.3.3. Mutually Supported TOE Security Functions
The TOE security functional requirements that are satisfied by a combination of IT security
functions that are identifies in the TOE summary specifications, are as shown in the text
regarding the rationale in the section of 8.3.1.
8.3.4. Rationale for Assurance Measures
The required document for the evaluation assurance level EAL3 is covered by the reference
document shown in the assurance measures described in paragragh 26.4. The TOE security
assurance requirements are satisfied through development, test condition, vulnerability analysis,
the development environment control, configuration management, life cycle management, and
delivery procedures in accordance with the document provided as the assurance measures, as
well as the preparation of a proper guidance document.
8.4. PP claims rationale
There is no PP that is referenced by this ST.
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