Software Developer Guide, 5326-903, Rev A.0
3 Objects and Items
3.1 Overview
The reader presents smart card information as well as reader information as ASN.1 objects/items, whereby every object is identified by a unique Object Identifier (OID). A special kind of object is a Secure Identity Object (SIO).
3.2 SIO Processor
The HID SIO (Secure Identity Object™) is a data model for storing and transporting identity information in a single object. SIOs consist of a number of independent but associated data objects for such items as physical access control (for example, card numbers), finger print templates, and cash on card. The collection of this information in an SIO ensures the proper coupling of related data (that is, guaranteeing that one individual's card is not associated with another individual's fingerprint. Deploy SIOs in any number of form factors, including contactless and contact smart cards, smart phones, and USB tokens. When combined with an SIO interpreter on the authentication (or reader) side an SIO based system functions the same as a traditional card and reader systems with enhanced levels of Security, Portability
and Flexibility.
3.3 The OID Tree
OIDs are organized as a tree under an “invisible” root node. The following table shows the first root nodes.
Object sub tree sioApi manageSecureSession readerInformationApi hidMediaPdu nativeCardCommand humanInterfaceCommand contactSmartCardCtrl deviceSpecificCommand response errorResponse
Tag Value (hex) Description
0xA0
0xA1
0xA2
0xA3
0xA4
0xA5
0xA6
0xBC
0xBD
0xBE
SIO API, equivalent to SAMCommand
Establish and manage a secure session
Reader information API
HID media specific PDU
Native Smart Card commands
Control of human interfaces
Control of contact smart card parameters
Device specific command set
Response
Error Response
March 2012
© 2012 HID Global Corporation. All rights reserved.
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