This command authenticates a certain sector of a card using a key from the secure EEPROM of the Baltech reader chip.

Depending on the value of the AuthMode variable, either key A or key B of the sector specified by the Block variable will be compared to the key specified in KeyIdx.

It is only possible to authenticate one sector at a time.


Parameters (request frame)

Name Type/Size Description
AuthMode Integer (8 bits) Authentication Mode. 0x60: Key A, 0x61: Key B.
Block Integer (8 bits) Block to authenticate.
KeyIdx Integer (8 bits) Index of key in EEPROM which shall be used for authentication (range: 0 to 31).

Returned values (response frame)