ACR1281U-C1 – Application Programming Interface
Version 1.08
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5.1.3.4.
Verify password
This command verifies whether the memory card’s password matches the user’s entered PIN.
Command
Pseudo-APDU
Command
Class
INS
P1
P2
Lc
RP
PW (0)
PW (1)
PW (2)
Verify
Password
FFh
20h
00h
03h
Where:
PW (0), PW (1), PW (2)
= Password to be sent to memory card.
P2
(1 Byte)
=
0000 00r pb
Where the two bits “r p” indicates the password to compare
r = 0: Write password,
r = 1: Read password,
p = Password set number
r p = 01b for the secure code.
Response
Response
Data Out
Result
SW1
ErrorCnt
Where:
SW1
= 90h
ErrorCnt
(1 byte)
= Error Counter
FFh indicates the verification is correct. 00h indicates the password is locked
(exceed maximum number of retries). Other values indicate the current
verification is failed.