ACR3901U-S1 – Reference Manual
Version 1.09
www.acs.com.hk
Page 68 of 96
Response Data Format (
abData
field in the
RDR_to_PC_DataBlock
)
SW1
SW2
ErrorCnt
90h
Where:
SW1
= 90h
SW2 (ErrorCnt)
= Error Counter. FFh indicates the verification is correct. 00h
indicates the password is locked (or exceeded the maximum number
of retries). Other values indicate the current verification has failed.
7.2.4.5.
INITIALIZE_AUTHENTICATION
Command Format (
abData
field in the
PC_to_RDR_XfrBlock
)
Pseudo-APDU
CLA
INS
P1
P2
Lc
Q(0)
Q(1)
…
Q(7)
FFh
84h
00h
00h
08h
Where:
Byte Address
Memory address location of the memory card
Q(0),Q(1)…Q(7)
Host random number, 8 bytes
Response Data Format (
abData
field in the
RDR_to_PC_DataBlock
)
SW1
SW2
Where:
SW1 SW2
= 90 00h if no error
7.2.4.6.
VERIFY_AUTHENTICATION
Command Format (
abData
field in the
PC_to_RDR_XfrBlock
)
Pseudo-APDU
CLA
INS
P1
P2
Lc
Q1(0)
Q1(1)
…
Q1(7)
FFh
82h
00h
00h
08h
Where:
Byte Address
Memory address location of the memory card
Q1(0),Q1(1)…Q1(7)
Host challenge, 8 bytes
