NewAESCMAC creates a new AESCMAC object that implements the MAC interface.

NewHMAC creates a new instance of HMAC with the specified key and tag size.

ValidateCMACParams validates the parameters for an AES-CMAC against the recommended parameters.

ValidateHMACParams validates parameters of HMAC constructor.

AESCMAC represents an AES-CMAC struct that implements the MAC interface.

HMAC implementation of interface tink.MAC.