public BitcoinBlindedAddress(string base58, Network network)
: base(base58, network)
{
var prefix = network.GetVersionBytes(Base58Type.BLINDED_ADDRESS, true);
var version = network.GetVersionBytes(Base58Type.PUBKEY_ADDRESS, false);
var blech32 = network.GetBech32Encoder(Bech32Type.BLINDED_ADDRESS, false);
if (blech32 != null && NBitcoin.DataEncoders.Encoders.ASCII
.DecodeData(base58.Substring(0, blech32.HumanReadablePart.Length))
.SequenceEqual(blech32.HumanReadablePart))
{
var vchData = blech32.Decode(base58, out var witnessVerion);
bool p2pkh = !(version == null || !StartWith(prefix.Length, vchData, version));
var script = false;
var blinding = vchData.SafeSubarray(0, 33);
byte[] hash;
if (vchData.Length == 53)
{
hash = vchData.SafeSubarray(version.Length + 32, 20);
}
else
{
hash = vchData.SafeSubarray(version.Length + 32, vchData.Length - version.Length - 32);
script = true;
}
if (PubKey.TryCreatePubKey(blinding, out _BlindingKey))
{
if (witnessVerion == 0)
{
_UnblindedAddress = script? (BitcoinAddress) new BitcoinWitScriptAddress(new WitScriptId(hash), network): new BitcoinWitPubKeyAddress(new WitKeyId(hash), network);
}
else if (witnessVerion > 16 || hash.Length < 2 || hash.Length > 40)
{
throw new FormatException("Invalid Bitcoin Blinded Address");
}
}
else
{
throw new FormatException("Invalid Bitcoin Blinded Address");
}
}
else
{
var vchData = NBitcoin.DataEncoders.Encoders.Base58Check.DecodeData(base58);
bool p2pkh = true;
if (version == null || !StartWith(prefix.Length, vchData, version))
{
p2pkh = false;
version = network.GetVersionBytes(Base58Type.SCRIPT_ADDRESS, false);
if (version == null || !StartWith(prefix.Length, vchData, version))
{
throw new FormatException("Invalid Bitcoin Blinded Address");
}
}
if (vchData.Length != prefix.Length + version.Length + 33 + 20)
{
throw new FormatException("Invalid Bitcoin Blinded Address");
}
var blinding = vchData.SafeSubarray(prefix.Length + version.Length, 33);
if (PubKey.TryCreatePubKey(blinding, out _BlindingKey))
{
var hash = vchData.SafeSubarray(prefix.Length + version.Length + 33, 20);
_UnblindedAddress =
p2pkh
? (BitcoinAddress) new BitcoinPubKeyAddress(new KeyId(hash), network)
: new BitcoinScriptAddress(new ScriptId(hash), network);
}
else
{
throw new FormatException("Invalid Bitcoin Blinded Address");
}
}
}