private DerivationStrategyBase ParseCore(string str)
{
bool legacy = false;
ReadBool(ref str, "legacy", ref legacy);
bool p2sh = false;
ReadBool(ref str, "p2sh", ref p2sh);
bool keepOrder = false;
ReadBool(ref str, "keeporder", ref keepOrder);
var match = MultiSigRegex.Match(str);
if (match.Success)
{
var sigCount = int.Parse(match.Groups[1].Value);
var pubKeys = match.Groups
.OfType <Group>()
.Skip(2)
.SelectMany(g => g.Captures.OfType <Capture>())
.Select(g => new BitcoinExtPubKey(g.Value.Substring(1), Network))
.ToArray();
DerivationStrategyBase derivationStrategy = new MultisigDerivationStrategy(sigCount, pubKeys)
{
LexicographicOrder = !keepOrder
};
if (legacy)
{
return(new P2SHDerivationStrategy(derivationStrategy));
}
derivationStrategy = new P2WSHDerivationStrategy(derivationStrategy);
if (p2sh)
{
derivationStrategy = new P2SHDerivationStrategy(derivationStrategy);
}
return(derivationStrategy);
}
else
{
var key = _Network.Parse <BitcoinExtPubKey>(str);
DerivationStrategyBase strategy = new DirectDerivationStrategy(key)
{
Segwit = !legacy
};
if (p2sh && !legacy)
{
strategy = new P2SHDerivationStrategy(strategy);
}
return(strategy);
}
}
/// <summary>
/// Create a multisig derivation strategy from public keys
/// </summary>
/// <param name="pubKeys">The public keys belonging to the multi sig</param>
/// <param name="sigCount">The number of required signature</param>
/// <param name="options">Derivation options</param>
/// <returns>A multisig derivation strategy</returns>
public DerivationStrategyBase CreateMultiSigDerivationStrategy(BitcoinExtPubKey[] pubKeys, int sigCount, DerivationStrategyOptions options = null)
{
options = options ?? new DerivationStrategyOptions();
DerivationStrategyBase derivationStrategy = new MultisigDerivationStrategy(sigCount, pubKeys.ToArray(), options.Legacy)
{
LexicographicOrder = !options.KeepOrder
};
if (options.Legacy)
{
return(new P2SHDerivationStrategy(derivationStrategy, false));
}
derivationStrategy = new P2WSHDerivationStrategy(derivationStrategy);
if (options.P2SH)
{
derivationStrategy = new P2SHDerivationStrategy(derivationStrategy, true);
}
return(derivationStrategy);
}
/// <summary>
/// Create a multisig derivation strategy from public keys
/// </summary>
/// <param name="pubKeys">The public keys belonging to the multi sig</param>
/// <param name="sigCount">The number of required signature</param>
/// <param name="options">Derivation options</param>
/// <returns>A multisig derivation strategy</returns>
public DerivationStrategyBase CreateMultiSigDerivationStrategy(BitcoinExtPubKey[] pubKeys, int sigCount, DerivationStrategyOptions options = null)
{
options = options ?? new DerivationStrategyOptions();
DerivationStrategyBase derivationStrategy = new MultisigDerivationStrategy(sigCount, pubKeys.ToArray(), options.ScriptPubKeyType == ScriptPubKeyType.Legacy, !options.KeepOrder, options.AdditionalOptions);
if (options.ScriptPubKeyType == ScriptPubKeyType.Legacy)
{
return(new P2SHDerivationStrategy(derivationStrategy, false));
}
if (!_Network.Consensus.SupportSegwit)
{
throw new InvalidOperationException("This crypto currency does not support segwit");
}
derivationStrategy = new P2WSHDerivationStrategy(derivationStrategy);
if (options.ScriptPubKeyType == ScriptPubKeyType.SegwitP2SH)
{
derivationStrategy = new P2SHDerivationStrategy(derivationStrategy, true);
}
return(derivationStrategy);
}