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COSE: Add fully specified algorithm identifiers #384

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Merged
JesusMcCloud merged 3 commits into from
Dec 9, 2025
Merged

COSE: Add fully specified algorithm identifiers #384

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f44605e
COSE: Add fully specified algorithm identifiers
nodh Dec 4, 2025
68b3c20
Merge branch 'development' into feature/cose-fully-specified-algorithms
nodh Dec 5, 2025
b2bf3dd
fix COSE mappings
JesusMcCloud Dec 5, 2025
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
* `RSAPadding`
* `SymmetricEncryptionAlgorithm` and its nested implementations
* Fix project setup on non-macOS build hosts
* COSE: Add identifiers `-9`, `-51`, `-53` for fully-specified algorithms for ECDSA, see [RFC 9864](https://www.rfc-editor.org/rfc/rfc9864.html#name-elliptic-curve-digital-sign)

### 3.18.2 / Supreme 0.10.2
* Fixes
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12 changes: 12 additions & 0 deletions ...sable-cosef/src/commonMain/kotlin/at/asitplus/signum/indispensable/cosef/CoseAlgorithm.kt
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Expand Up @@ -88,12 +88,21 @@ sealed interface CoseAlgorithm : Enumerable {
@Serializable(with = CoseAlgorithmSerializer::class)
data object ES256 : Signature(-7, SignatureAlgorithm.ECDSAwithSHA256)

@Serializable(with = CoseAlgorithmSerializer::class)
data object ESP256 : Signature(-9, SignatureAlgorithm.ECDSAwithSHA256)

@Serializable(with = CoseAlgorithmSerializer::class)
data object ES384 : Signature(-35, SignatureAlgorithm.ECDSAwithSHA384)

@Serializable(with = CoseAlgorithmSerializer::class)
data object ESP384 : Signature(-51, SignatureAlgorithm.ECDSAwithSHA384)

@Serializable(with = CoseAlgorithmSerializer::class)
data object ES512 : Signature(-36, SignatureAlgorithm.ECDSAwithSHA512)

@Serializable(with = CoseAlgorithmSerializer::class)
data object ESP512 : Signature(-52, SignatureAlgorithm.ECDSAwithSHA512)

// RSASSA-PSS with SHA-size
@Serializable(with = CoseAlgorithmSerializer::class)
data object PS256 : Signature(-37, SignatureAlgorithm.RSAwithSHA256andPSSPadding)
Expand Down Expand Up @@ -121,8 +130,11 @@ sealed interface CoseAlgorithm : Enumerable {
companion object : Enumeration<Signature> {
override val entries: Collection<Signature> by lazy {
setOf(
ESP256,
ES256,
ESP384,
ES384,
ESP512,
ES512,
PS256,
PS384,
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