public string Create(HashAlgorithm algorithm, byte[] privateKey, Dictionary <string, string> payload)
{
var header = new Dictionary <string, string>();
header.Add("alg", algorithm.ToString());
header.Add("typ", "JWT");
var encodedHeader = this.ToJsonBase64Url(header);
var encodedPayload = this.ToJsonBase64Url(payload);
string signature = string.Empty;
if (algorithm == HashAlgorithm.RS256)
{
signature = Base64Url.Encode(EncodeHS256(privateKey, $"{encodedHeader}.{encodedPayload}"));
}
else if (algorithm == HashAlgorithm.RS256)
{
// TODO: also need to do RS256
throw new NotImplementedException();
}
return($"{encodedHeader}.{encodedPayload}.{signature}");
}
private string ToJsonBase64Url(Dictionary <string, string> dict)
{
return(Base64Url.Encode(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(dict))));
}