public static string Serialize(Network network, ECDSAType type, bool isCompressed, byte[] privateKey)
{
if (privateKey.Length != KeyLength)
{
throw new WifException($"Private key should be {KeyLength} bytes, not {privateKey.Length}");
}
var prefix = BuildPrefix(network, type);
return(Base58Check.Encode(prefix, privateKey, isCompressed));
}
public static Script P2PKHUnlockingScript(ECDSAType signatureType, byte[] signature, byte[] publicKey)
{
if (signatureType != ECDSAType.ECTypeSecp256k1)
{
throw new NotImplementedException();
}
using (var ms = new MemoryStream(signature.Length + publicKey.Length + 2))
using (var bw = new BinaryWriter(ms))
{
bw.WriteVariableLengthBytes(signature);
bw.WriteVariableLengthBytes(publicKey);
return(new Script(ms.ToArray()));
}
}
public static Script P2PKHLockingScript(ECDSAType signatureType, byte[] publicKeyHash)
{
switch (signatureType)
{
case ECDSAType.ECTypeSecp256k1:
var bytes = new byte[25];
bytes[0] = (byte)OpCode.OP_DUP;
bytes[1] = (byte)OpCode.OP_HASH160;
bytes[2] = (byte)OpCode.OP_DATA_20;
Array.Copy(publicKeyHash, 0, bytes, 3, 20);
bytes[23] = (byte)OpCode.OP_EQUALVERIFY;
bytes[24] = (byte)OpCode.OP_CHECKSIG;
return(new Script(bytes));
}
throw new NotImplementedException();
}
private static IEnumerable <byte> BuildPrefix(Network network, ECDSAType type)
{
return(network.AddressPrefix.PrivateKey.Concat(new[] { (byte)type }));
}
