Module cose 

This file contains helper functions to aid in COSE deserialization

Functions

akp_priv 🔒

Helper function to parse the private key from an AKP CoseKey.

akp_pub 🔒

Helper function to parse the public key from an AKP CoseKey.

content_type 🔒

Helper function to extract the content type from a ProtectedHeader. The content type is a standardized header set on the protected headers of the signature object. Currently we only support registered values, but PrivateUse values are also allowed in the COSE specification.

cose_param 🔒

Helper function to look up a parameter in a CoseKey by its registered label.

ed25519_signing_key 🔒

Helper function to parse a ed25519 signing key from a CoseKey.

ed25519_verifying_key 🔒

Helper function to parse a ed25519 verifying key from a CoseKey.

key_id 🔒

Helper function to extract the key ID from a CoseKey. The key ID is a standardized header and always set in bitwarden-crypto generated encrypted messages or signatures.

mldsa44_verifying_key 🔒

Helper function to parse an ML-DSA-44 verifying key from a CoseKey.

mldsa_seed 🔒

Helper function to parse an ML-DSA signing key from a CoseKey. The Priv parameter contains the 32-byte seed, from which the full key pair is deterministically derived.

namespace 🔒

Helper function to extract the namespace from a ProtectedHeader. The namespace is a custom header set on the protected headers of the signature object.

okp_curve 🔒

Helper function to parse the OKP curve from a CoseKey.

okp_d 🔒

Helper function to parse the private key d from a CoseKey.

okp_x 🔒

Helper function to parse the public key x from a CoseKey.