indispensable-cosef/at.asitplus.signum.indispensable.cosef/CoseAlgorithm/MAC

MAC

@Serializable(with = CoseAlgorithmSerializer::class)

sealed class MAC : CoseAlgorithm.DataIntegrity, CoseAlgorithm.Symmetric, SpecializedMessageAuthenticationCode

Inheritors

Types

object Companion

@Serializable(with = CoseAlgorithmSerializer::class)

data object HS256 : CoseAlgorithm.MAC

@Serializable(with = CoseAlgorithmSerializer::class)

data object HS256_64 : CoseAlgorithm.MAC

SHA-265 with truncated output. Beware: This maps to HMAC.SHA256, but HMAC.SHA256 maps to HS256!

@Serializable(with = CoseAlgorithmSerializer::class)

data object HS384 : CoseAlgorithm.MAC

@Serializable(with = CoseAlgorithmSerializer::class)

data object HS512 : CoseAlgorithm.MAC

@Serializable(with = CoseAlgorithmSerializer::class)

data object UNOFFICIAL_HS1 : CoseAlgorithm.MAC

Properties

open override val algorithm: MessageAuthenticationCode

open override val coseValue: Int

See COSE Algorithm Registry

val tagLength: BitLength

The tag length for COSE might not be the same as for the underlying HMAC

open val ~~value~~: Int

Functions

toCoseAlgorithm

fun SpecializedDataIntegrityAlgorithm.toCoseAlgorithm(): KmmResult<CoseAlgorithm.DataIntegrity>

fun SpecializedMessageAuthenticationCode.toCoseAlgorithm(): KmmResult<CoseAlgorithm.MAC>

Tries to find a matching COSE algorithm. Note that COSE imposes curve restrictions on ECDSA based on the digest.