Advanced Card Systems Limited ACR1281U Benutzerhandbuch
ACR1281U
Advanced Card Systems Ltd.
Page 60 of 81
02 : write with backup enabled (SLE4436, SLE5536 and SLE6636 only)
03 : write with carry and with backup enabled (SLE4436, SLE5536 and SLE6636 only)
BYTE
Byte value to be written to the card
• Response data format
SW1
SW2
• SW1, SW2
= 90 00 if no error
7.4 Present Code Memory Card
To submit the secret code to the memory card to enable the card personalization mode. The
following actions are executed:
following actions are executed:
- search a '1' bit in the presentation counter and write the bit to '0'
- present the specified code to the card
- present the specified code to the card
The ACR1281U does not try to erase the presentation counter after the code submission! This must
be done by the application software through a separate 'Write with carry' command.
be done by the application software through a separate 'Write with carry' command.
• Command format
Pseudo-APDU
CODE
CLA
INS
P1
P2
MEM_L
ADDR
Byte 1
Byte 2
Byte 3
FF
H
20
H
00
H
00
H
04
H
09
H
ADDR
Byte address of the presentation counter in the card
CODE
Three bytes secret code (PIN)
• Response data format
SW1
SW2
• SW1, SW2
= 90 00 if no error
7.5 Authenticate Memory Card (SLE4436, SLE5536 and SLE6636 only)
To read a card authentication certificate from a SLE5536 or SLE6636 card. The following actions
are executed by the ACR1281U:
are executed by the ACR1281U:
- select Key 1 or Key 2 in the card as specified in the command
- present the challenge data specified in the command to the card
- generate the specified number of CLK pulses for each bit of authentication data
- present the challenge data specified in the command to the card
- generate the specified number of CLK pulses for each bit of authentication data
computed by the card
- read 16 bits of authentication data from the card
- reset the card to normal operation mode
- reset the card to normal operation mode