public static string EncodeBytes(byte[] payload, object key, JwsAlgorithm algorithm, IDictionary <string, object> extraHeaders = null, JwtSettings settings = null)
{
if (payload == null)
{
throw new ArgumentNullException(nameof(payload));
}
if (extraHeaders == null) //allow overload, but keep backward compatible defaults
{
extraHeaders = new Dictionary <string, object> {
{ "typ", "JWT" }
};
}
var jwtHeader = new Dictionary <string, object> {
{ "alg", algorithm.ToString() }
};
Dictionaries.Append(jwtHeader, extraHeaders);
byte[] headerBytes = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(jwtHeader));
var bytesToSign = Encoding.UTF8.GetBytes(Serialize(headerBytes, payload));
var signer = SignerUtilities.GetSigner("SHA-384withECDSA");
signer.Init(true, (ECPrivateKeyParameters)key);
signer.BlockUpdate(bytesToSign, 0, bytesToSign.Length);
byte[] signature = signer.GenerateSignature();
return(Serialize(headerBytes, payload, transcodeSignatureToConcat(signature, 96)));
}
