toJWK method
Convert the key to a JWK JSON object representation
Implementation
@override
Map<String, dynamic> toJWK({String? keyID, HMACAlgorithm? algorithm}) {
final keyBytes = decodeHMACSecret(key, isBase64Encoded);
Map<String, dynamic> jwk = {
'kty': 'oct',
'use': 'sig',
'k': base64Unpadded(base64Url.encode(keyBytes)),
};
if (keyID != null) jwk['kid'] = keyID;
if (algorithm != null) jwk['alg'] = algorithm.name;
return jwk;
}