public static bool TryParse(string str, out PartialSignature?sig)
{
if (str == null)
{
throw new ArgumentNullException(nameof(str));
}
sig = null;
try
{
var bytes = Encoders.Hex.DecodeData(str);
if (bytes.Length < 2 + 33 + 1 || bytes[0] != 0x22 || bytes[1] != 0x02)
{
return(false);
}
var pk = new NBitcoin.PubKey(bytes.AsSpan().Slice(2, 33).ToArray());
var siglen = bytes[2 + 33];
if (siglen < 75 && bytes.Length != 2 + 33 + 1 + siglen)
{
return(false);
}
var sigBytes = bytes.AsSpan().Slice(2 + 33 + 1).ToArray();
if (!TransactionSignature.IsValid(sigBytes))
{
return(false);
}
var s = new TransactionSignature(sigBytes);
sig = new PartialSignature(pk, s);
return(true);
}
catch
{
return(false);
}
}
private CetSigs CreateCetSigs()
{
if (FundingKey is null || OffererRewards is null)
{
throw new InvalidOperationException("Invalid state for creating CetSigs");
}
var refund = BuildRefund();
var signature = refund.SignInput(FundingKey, GetFundCoin());
var cetSig = new CetSigs()
{
OutcomeSigs = OffererRewards
.Select(o => (o.Key, SignCET(FundingKey, o.Key)))
.ToDictionary(kv => kv.Key, kv => kv.Item2),
RefundSig = new PartialSignature(FundingKey.PubKey, signature)
};
return(cetSig);
}