ACS AET62 NFC Reader with Fingerprint Sensor - Manual (Page 12)

6.2. Authentication
The “Authentication command” uses the keys stored in the reader to execute authentication with the
Mifare 1K/4K card (PICC). Two types of authentication keys are used: TYPE_A and TYPE_B.
Command Class INS P1 P2 P3 Data In
Authentication FF 88 00 Block Number
Key
Type
Key Number
Table 11: Load Authentication Keys APDU Format (6 Bytes) [Obsolete]
Command Class INS P1 P2 Lc Data In
Authentication FF 86 00 00 05 Authenticate Data Bytes
Table 12: Load Authentication Keys APDU Format (10 Bytes)
Byte1 Byte 2 Byte 3 Byte 4 Byte 5
Version
0x01
0x00
Block
Number
Key Type Key Number
Table 13: Authenticate Data Bytes (5 Byte)
Block Number: 1 Byte. This is the memory block to be authenticated.
Key Type: 1 Byte
0x60 = Key is used as a TYPE A key for authentication.
0x61 = Key is used as a TYPE B key for authentication.
Key Number: 1 Byte
0x00 ~ 0x1F = Key Location.
Note: For Mifare 1K Card, there are 16 sectors and each sector consists of 4 consecutive
blocks. E.g. Sector 0x00 consists of Blocks {0x00, 0x01, 0x02 and 0x03}; Sector 0x01 consists
of Blocks {0x04, 0x05, 0x06 and 0x07}; the last sector 0x0F consists of Blocks {0x3C, 0x3D,
0x3E
and 0x3F}.
Once the authentication is executed successfully, there is no need to execute the authentication again
provided that the blocks to be accessed are belonging to the same sector. Please refer to the Mifare
1K/4K specification for more details.
Response Data Out
Result SW1 SW2
Table 14: Load Authentication Keys Response Format (2 Bytes)
Results SW1 SW2 Meaning
Success 90 00 The operation is completed successfully.
Error 63 00 The operation is failed.
Table 15: Load Authentication Keys Response Codes
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