/// <summary>
/// Serializes a signature to its Protobuf representation
/// </summary>
/// <returns></returns>
public Format.Schema.Signature Serialize()
{
Format.Schema.Signature sig = new Format.Schema.Signature()
{
Z = ByteString.CopyFrom(this.Z.ToByteArray())
};
foreach (RistrettoElement element in this.Parameters)
{
sig.Parameters.Add(ByteString.CopyFrom(element.Compress().ToByteArray()));
}
return(sig);
}
/// <summary>
/// Deserializes a signature from its Protobuf representation
/// </summary>
/// <param name="sig"></param>
/// <returns></returns>
static public Either <Error, TokenSignature> Deserialize(Format.Schema.Signature sig)
{
try
{
List <RistrettoElement> parameters = new List <RistrettoElement>();
foreach (ByteString parameter in sig.Parameters)
{
parameters.Add((new CompressedRistretto(parameter.ToByteArray())).Decompress());
}
Scalar z = Scalar.FromBytesModOrder(sig.Z.ToByteArray());
return(new Right(new TokenSignature(parameters, z)));
}
catch (InvalidEncodingException)
{
return(new InvalidFormat());
}
catch (ArgumentException e)
{
return(new DeserializationError(e.ToString()));
}
}
