ARPC or Authorization Response Cryptogram is a Ciphertext used for a process called Online Authorization.

The ARPC is the result of the Authorization Request Cryptogram and the Card Issuer’s Authorization Response Cryptogram encrypted by a DES key.

The ARPC is sent to the card in the authorization response. The card validates the ARPC to ensure that it is communicating with the valid Card Issuer.

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« This page (revision-3) was last changed on 08-Mar-2015 21:55 by jim