IMessageAuthenticationCode

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Interface IMessageAuthenticationCode

interface IMessageAuthenticationCode

Extends com.amazon.apmf.IStandard Interface for Message Authentication Code (MAC) algorithms. MACs provide data integrity and authenticity verification through cryptographic authentication tags.

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Methods

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getName()

string getName()

Get the name of the MAC algorithm.

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Returns

string The name of the algorithm.

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getTagLength()

i32 getTagLength()

Get the length of the authentication tag produced by this MAC algorithm.

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Returns

i32 The tag length in bytes.

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getHashAlgorithm()

IDigestAlgorithm* getHashAlgorithm()

Get the underlying hash algorithm for HMAC variants. Returns null for non-HMAC MAC algorithms.

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Returns

IDigestAlgorithm* The underlying digest algorithm, or null if not applicable.

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Constants

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HMAC_SHA256

string = "HmacSha256"

Constant representing HMAC with SHA-256. HMAC-SHA256 provides message authentication using SHA-256 hash function.

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HMAC_SHA384

string = "HmacSha384"

Constant representing HMAC with SHA-384. HMAC-SHA384 provides message authentication using SHA-384 hash function.

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HMAC_SHA512

string = "HmacSha512"

Constant representing HMAC with SHA-512. HMAC-SHA512 provides message authentication using SHA-512 hash function.