public void CanParseUnblindedSignature()
{
var requester = new Requester();
using var r = new Key(Encoders.Hex.DecodeData("31E151628AED2A6ABF7155809CF4F3C762E7160F38B4DA56B784D9045190CFA0"));
using var key = new Key(Encoders.Hex.DecodeData("B7E151628AED2A6ABF7158809CF4F3C762E7160F38B4DA56A784D9045190CFEF"));
var signer = new Signer(key);
var message = new uint256(Encoders.Hex.DecodeData("243F6A8885A308D313198A2E03707344A4093822299F31D0082EFA98EC4E6C89"), false);
var blindedMessage = requester.BlindMessage(message, r.PubKey, key.PubKey);
var blindSignature = signer.Sign(blindedMessage, r);
var unblindedSignature = requester.UnblindSignature(blindSignature);
var str = unblindedSignature.ToString();
Assert.True(UnblindedSignature.TryParse(str, out var unblindedSignature2));
Assert.Equal(unblindedSignature.C, unblindedSignature2 !.C);
Assert.Equal(unblindedSignature.S, unblindedSignature2.S);
str += "o";
Assert.False(UnblindedSignature.TryParse(str, out _));
Assert.Throws <FormatException>(() => UnblindedSignature.Parse(str));
byte[] overflow = new byte[64];
overflow.AsSpan().Fill(255);
Assert.False(UnblindedSignature.TryParse(overflow, out _));
Assert.Throws <FormatException>(() => UnblindedSignature.Parse(overflow));
}
/// <inheritdoc />
public override object ReadJson(JsonReader reader, Type?objectType, object?existingValue, JsonSerializer?serializer)
{
JArray arr = JArray.Load(reader);
var carr = ToFixedLengthByteArray(StringToBigInteger(arr[0].Value <string>()));
var sarr = ToFixedLengthByteArray(StringToBigInteger(arr[1].Value <string>()));
var signatureBytes = carr.Concat(sarr).ToArray();
var signature = ByteHelpers.ToHex(signatureBytes);
var sig = UnblindedSignature.Parse(signature);
return(sig);
}
