• UCAF validation

    Ramesh sir could you explain what are fields come in picture when we have to validate is the transaction is UCAF and it will be good if you explain what data comes in that field.

    Posted By:
    sachin1991vijaygmailcom

Answer

  • For VISA CAVV is placed in DE 126.9, which issuer will validate and take a decision accordingly for 3DS trxn.

    Answered By:
    RameshChugh

  • Generally, UCAF generation logic iss fully described in according MasterCard 3DS specifications. But to make our life easier - there's one popular web-resource in card domain: https://paymentcardtools.com/card-security-values

    There you can generate UCAF easily (also this resource contains many useful crypto calculators).

    Answered By:
    volosnikpk

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