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Sample EMV tag 91 Values

Anyone have knowledge on EMV tags and provide EMV tag Format and Sample value for Tag 91- Issuer Authentication Data and Issuer Script Template 1 and 2.

Solution

  • Issuer Authentication Data are represented using EMV Tag 91 in BER-TLV format. For more details please check EMV Book 3 (A1 Data Elements by Name) enter image description here

    example: TLV [910ABCF266A64FF136630010]
    TAG Issuer Authentication Data -> 91
    LEN -> 0A (10 DEC)
    VALUE -> BC F2 66 A6 4F F1 36 63 00 10

    Using the same way Issuer Script Template 1 is represented using EMV tag 71 and Issuer Script Template 2 is represented using EMV tag 72. enter image description here

    example: TLV [72127210860E84DA00CB0910230E1B119D26C2DA]
    TAG Issuer Script Template 2 -> 72
    LEN ->12 (18 DEC)
    VALUE->72 10 86 0E 84 DA 00 CB 09 10 23 0E 1B 11 9D 26 C2 DA