public static bool IsAddress(string _address, out byte?_version)
{
try
{
if (_address.StartsWith("bc1") || _address.StartsWith("tb1"))
{
#region Bech32
if (_address.Length == 42)
{
_version = (byte?)(_address.StartsWith("bc1") ? 0x00 : 0x6F);
}
else if (_address.Length == 62)
{
_version = (byte?)(_address.StartsWith("bc1") ? 0x05 : 0xC4);
}
else
{
_version = null;
return(false);
}
try
{
Bech32.Bech32Decode(_address, out byte[] _hrp);
return(true);
}
catch
{
return(false);
}
#endregion
}
else
{
#region Base58
byte[] _bytes = Base58.Decode(_address);
if (_bytes.Length != 25)
{
throw new Exception();
}
_version = _bytes[0];
byte[] _byteBody = new byte[21];
Array.Copy(_bytes, 0, _byteBody, 0, 21);
byte[] _byteCheck = new byte[4];
Array.Copy(_bytes, 21, _byteCheck, 0, 4);
string _checkSum = HexPlus.ByteArrayToHexString(_byteCheck);
byte[] _sha256A = SHA.EncodeSHA256(_byteBody);
byte[] _sha256B = SHA.EncodeSHA256(_sha256A);
Array.Copy(_sha256B, 0, _byteCheck, 0, 4);
string _caleSum = HexPlus.ByteArrayToHexString(_byteCheck);
return(_checkSum == _caleSum);
#endregion
}
}
catch
{
_version = null;
return(false);
}
}
