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latestOpenAPI 3.0.0Apache 2.0 License2026-07-1415176206.9 KB

Verifies Authorization Request Cryptogram (ARQC) for a EMV chip payment card authorization. For more information, see Verify auth request cryptogram in the Amazon Web Services Payment Cryptography User Guide.

ARQC generation is done outside of Amazon Web Services Payment Cryptography and is typically generated on a point of sale terminal for an EMV chip card to obtain payment authorization during transaction time. For ARQC verification, you must first import the ARQC generated outside of Amazon Web Services Payment Cryptography by calling ImportKey. This operation uses the imported ARQC and an major encryption key (DUKPT) created by calling CreateKey to either provide a boolean ARQC verification result or provide an APRC (Authorization Response Cryptogram) response using Method 1 or Method 2. The ARPC_METHOD_1 uses AuthResponseCode to generate ARPC and ARPC_METHOD_2 uses CardStatusUpdate to generate ARPC.

For information about valid keys for this operation, see Understanding key attributes and Key types for specific data operations in the Amazon Web Services Payment Cryptography User Guide.

Cross-account use: This operation supports cross-account use when the key has a resource-based policy that grants access. For more information, see Resource-based policies.

Related operations:

  • VerifyCardValidationData

  • VerifyPinData

post/cryptogram/verify

Request body

KeyIdentifierstring required

The <code>keyARN</code> of the major encryption key that Amazon Web Services Payment Cryptography uses for ARQC verification.

TransactionDatastring password required

The transaction data that Amazon Web Services Payment Cryptography uses for ARQC verification. The same transaction is used for ARQC generation outside of Amazon Web Services Payment Cryptography.

AuthRequestCryptogramstring password required

The auth request cryptogram imported into Amazon Web Services Payment Cryptography for ARQC verification using a major encryption key and transaction data.

MajorKeyDerivationMode'EMV_OPTION_A' | 'EMV_OPTION_B' required

The method to use when deriving the major encryption key for ARQC verification within Amazon Web Services Payment Cryptography. The same key derivation mode was used for ARQC generation outside of Amazon Web Services Payment Cryptography.

Response

Success

KeyArnstring required

The <code>keyARN</code> of the major encryption key that Amazon Web Services Payment Cryptography uses for ARQC verification.

KeyCheckValuestring required
<p>The key check value (KCV) of the encryption key. The KCV is used to check if all parties holding a given key have the same key or to detect that a key has changed.</p> <p>Amazon Web Services Payment Cryptography computes the KCV according to the CMAC specification.</p>
AuthResponseValuestring password

The result for ARQC verification or ARPC generation within Amazon Web Services Payment Cryptography.