cryptography-core/dev.whyoleg.cryptography.algorithms/AES/CMAC

CMAC

@SubclassOptInRequired(markerClass = [CryptographyProviderApi::class])

interface CMAC : AES<AES.CMAC.Key> (source)

AES Cipher-based Message Authentication Code (CMAC) as defined in NIST SP 800-38B.

Computes and verifies authentication tags using AES as the underlying block cipher.

val key = provider.get(AES.CMAC).keyGenerator().generateKey()
val tag = key.signatureGenerator().generateSignature(data)
key.signatureVerifier().verifySignature(data, tag)

Types

Companion

object Companion : CryptographyAlgorithmId<AES.CMAC>

Key

@SubclassOptInRequired(markerClass = [CryptographyProviderApi::class])

interface Key : AES.Key

An AES-CMAC key that provides MAC computation via signatureGenerator and verification via signatureVerifier.

Properties

open override val id: CryptographyAlgorithmId<AES.CMAC>

The typed identifier that uniquely distinguishes this algorithm and is used to look it up from a CryptographyProvider.

Functions

keyDecoder

abstract fun keyDecoder(): Decoder<AES.Key.Format, AES.CMAC.Key>

Returns a Decoder that decodes AES keys from the specified Key.Format.

keyGenerator

abstract fun keyGenerator(keySize: BinarySize = Key.Size.B256): KeyGenerator<AES.CMAC.Key>

Returns a KeyGenerator that generates AES keys of the given keySize.