verifyMac

Verifies a Message Authentication Code (MAC).

You can use this operation when keys won't be shared but mutual data is present on both ends for validation. In this case, known data values are used to generate a MAC on both ends for verification without sending or receiving data in ciphertext or plaintext. You can use this operation to verify a DUPKT, HMAC or EMV MAC by setting generation attributes and algorithm to the associated values. Use the same encryption key for MAC verification as you use for GenerateMac.

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 can't be used across different Amazon Web Services accounts.

Related operations:

• GenerateMac