MagTek IntelliStripe 320 99875168 - Manual (Page 120)

IntelliStripe 320 Command Reference
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Response APDU:
SW1 SW2
Possible SW1/SW2 combinations:
SW1/SW2 Meaning
9000
Normal completion, no errors
6300 No bits to write, couldn’t erase
6700 Lc gives incorrect length
6B00 P2 is incorrect
Internal Authenticate APDU
The Internal Authenticate is used to authenticate the card to the hosting terminal.
If the Internal Authenticate is performed with CBC enabled, the CBC mode remains in effect
until the card is powered down.
The specified address is a bit address. It specifies the address of the bit where a Dummy Write is
performed to start the Authentication operation. For more details, see the Gemplus
documentation.
In the Authentication operation a value called M is used. This value is specified by agreement
with Gemplus. The user has control over this value via the GAM326 value of M property
Command APDU:
CLA INS P1
P2 Lc Data Le
D0 88 CBC / Address Address 06 xx xx xx xx xx xx 02
CLA is always D0
INS is always 88
P1 gives an indication of Cipher Block Chaining and the upper bits of the bit address to
be used to start the Authentication operation:
Bits
Usage
0 CBC indication, 0 = no CBC, 1 = CBC
1-7 Address bits
P2 is the low order byte of the bit address used to start the Authentication operation.
Lc gives the length of the data to be used as the Random Number in the Authentication
operation, its value must always be 6.
Data is the Random Number to be used in the Authentication operation.
Le gives the length of the expected reply, which is always 2.