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EMV Tag 91 - why the last 2 bytes are "0010"?

EMV Tag 91
in the following example, why the last 2 bytes are "0010"? example: TLV [910ABCF266A64FF136630010] I need most help Thanks!!!

Solution

  • The first 8 bytes are mandatory and contain the cryptogram.

    The optional 1–8 bytes that follow are proprietary. Therefore, you need to know what payment application (and version) you are using: e.g., Mastercard M/Chip, American Express AEIPS, etc.

    See 6.5.4 External Authenticate in EMV 4.3 Book 3