Complete coverage of JWA/JWE/JWK/JWS/JWT, not just JWT+minimum tool set. Supports JWS messages with multiple signatures, both compact and JSON serialization Supports JWS with detached payload Supports JWS with unencoded payload (RFC7797) Supports JWE messages with multiple recipients, both compact and JSON serialization Most operations work with either JWK or raw keys e.g. *rsa.PrivateKey, *ecdsa.