Update Reader Key. HID Global OMNIKEY 5326 DFR

Software Developer Guide, 5326-903, Rev A.0

The plain command APDU for HF media (iCLASS), supported by the SIO Processor is:

FF 70 07 6B 15 A0 13 A1 11 80 01 04 84 0C 2B 06 01 04 01 81 E4 38 01 01 02 04 00

FF 70 07 6B 30 { Enc(plain APDU + PADDING, S-ENC) + C-MAC } 00

The command to send is encrypted according to clause 4.2.2.3.

Response:

9D

xx

// Tag = Response (1D)

// length of PAC Bits

PAC BIT STRING 1) // UNIVERSAL BIT_STRING TAG (1st byte) = 03

// Length of UNIVERSAL BIT_STRING (2nd byte) = nn

// Unused Bits (3rd byte) is the number of trailing 0s in the last byte

// PAC bits (ex 4th byte, nn-1 bytes) including required trailing zeros

Example response for 35bit PAC bit string 1):

9D

08

03 06 05 81 ED BE 15 60

1) Note: In use case of a secure channel is the PAC BIT STRING a server cryptogram (see

3.4).

4.3 Update Reader Key

Update the reader key with the Load Keys (see chapter Error! Reference source not

found.) command. Establish a secure channel and transmit the following command:

Example: Updating the reader key

FF 82 // Load Keys

20 80

10

11 22 33 44 55 66 77 88 99 00 AA BB CC DD EE FF

Response:

90 00

// Reader key slot number 80

// Le

// New reader key

// SW1 SW2

March 2012 Page 22 of 72

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