Format 04 is the PIN block format adopted by the PLUS network. The format combines the customer PIN and the related account number as follows:
· A 16-digit block is made from the digit 0, the length of the PIN, the PIN, and a pad character (hexadecimal F). For example, for the 5-digit PIN 92389, the block is:
0592 389F FFFF FFFF
· Another 16-digit block is made from four zeros and the left-most 12 digits of the account number. For example, for the 16-digit account number 2283 4000 0012 3456, where the check digit is 6, the block is:
0000 2283 4000 0012
· The two blocks are exclusive-OR added:
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0592 |
389F |
FFFF |
FFFF |
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0000 |
2283 |
4000 |
0012 |
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PIN block: |
0592 |
1A1C |
BFFF |
FFED |
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Notes: |
Any transaction that requires a PIN block as a parameter accepts Format 04. The major impact of this format is on the account number field length: when a PIN block is formatted according to Format 04, the account number field becomes 18 digits in length.
For the PIN translation CA and CC commands, there are two format fields; if either is 04, the account number field must be 18 digits. If the account number is less than 18 digits, it must be right-justified and padded with X’F on the left.
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The following commands can use this format:
BC, BE, CA, CC, CG, DA, DC, EA, EC, EG, JC, JE.
When reviewing the details for these commands, consider the change to the account field that this format requires.