Identiv uTrust 4711F - 6 Commands Description; Generic APDU; Working with Desfire and MIFARE Plus Tokens; Papdu_Get_Uid

Document Version 1.2
Last revised on
2017-09-26
Page 27 of 92
Reference Manual for uTrust 4701F and uTrust 4711F Readers
6. Commands description
6.1. Generic APDU
6.1.1. Working with DESFire and MIFARE Plus tokens
To work with DESFire EV1 and MIFARE Plus tokens, please refer to the according application notes
[AN337] and [AN338], respectively.
Please note that, since these application notes contain information available only under NDA with
NXP, you’d need to sign an NDA with NXP to be allowed to receive them.
6.1.2. PAPDU_GET_UID
GET UID will retrieve the UID or SNR or PUPI of the user token. This command can be used for all
supported technologies.
Command APDU:
CLA
INS
P1
P2
Lc
Data in
Le
0xFF
0xCA
0x00
0x00
-
-
XX
Setting Le = 0x00 can be used to request the full UID or PUPI is sent back.(e.g. for ISO14443A single 4
bytes, double 7 bytes, triple 10 bytes, for ISO14443B 4 bytes PUPI).
Response APDU:
Data
Status Word
Requested bytes of UID
SW1, SW2
6.1.3. PAPDU_ESCAPE_CMD
Usually escape commands are transmitted through SCardControl as defined in PCSC API using
IOCTL_CCID_ESCAPE. But on some environments, the driver will block this IOCTL unless the registry
has been edited to allow it. Hence this vendor specific APDU was defined to transmit Escape
commands to the reader as below
Command APDU:
CLA
INS
P1
P2
Lc
Data in
Le
0xFF
0xCC
0x00
0x00
Length of data
Escape Command Buffer
XX
Response APDU:
Data
Status Word
Reader Response
SW1, SW2