public override byte[] BitcoinSerialize()
{
using (var buf = new MemoryStream())
{
// Version, for some reason.
buf.WriteLittleEndian(NetworkParameters.ProtocolVersion);
// Then a vector of block hashes. This is actually a "block locator", a set of block
// identifiers that spans the entire chain with exponentially increasing gaps between
// them, until we end up at the genesis block. See CBlockLocator::Set()
buf.Write(new VarInt((ulong) _locator.Count).Encode());
foreach (var hash in _locator)
{
// Have to reverse as wire format is little endian.
buf.Write(Utils.ReverseBytes(hash.Bytes));
}
// Next, a block ID to stop at.
buf.Write(_stopHash.Bytes);
return buf.ToArray();
}
}
private byte[] HashTransactionForSignature(SigHash type, bool anyoneCanPay)
{
using (var bos = new MemoryStream())
{
BitcoinSerializeToStream(bos);
// We also have to write a hash type.
var hashType = (uint) type + 1;
if (anyoneCanPay)
hashType |= 0x80;
bos.WriteLittleEndian(hashType);
// Note that this is NOT reversed to ensure it will be signed correctly. If it were to be printed out
// however then we would expect that it is IS reversed.
return Utils.DoubleDigest(bos.ToArray());
}
}
