3. AKP Key Type

Algorithm Key Pair (AKP) is a generic key type for public and private keys used with algorithms. The alg JWK parameter or COSE Key Common parameter is REQUIRED for all AKP keys. The pub parameter contains public information and is REQUIRED. The priv parameter contains private information and MUST NOT be present in public keys.

For JWK, AKP key parameters are base64url encoded. For COSE keys, no encoding is needed. The examples use kty "AKP", alg "ML-DSA-44", pub, and priv; in COSE they use kty label 1, alg label 3, pub label -1, priv label -2, AKP value 7, and ML-DSA-44 value -48.