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ARPC

Overview#

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.

More Information#

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