public byte[] GetTokenSeed(string masterkey)
{
byte[] result;
try
{
result = HOTPCipher.decryptData(BaseFunctions.HexDecoder(this._cryptoData.CryptoKey.Trim()), HOTPCipherInitialize.createCryptKey(BaseFunctions.HexDecoder(this._cryptoData.InternalSerialNumber.Trim()), (masterkey == null || masterkey.Length < 1) ? new byte[0] : BaseFunctions.convertStringToByteArray(masterkey)));
}
catch
{
result = null;
}
return(result);
}
public bool Export(string pin, string deviceType, string masterKey, TokenCryptoData tokenCryptoData, out string tokenBlob)
{
tokenBlob = null;
bool result;
try
{
if (pin == null || pin.Length < 4 || deviceType == null || deviceType.Length != 2)
{
result = false;
}
else
{
byte[] blob = new byte[114];
byte[] cryptoBlock = new byte[48];
byte[] _oTPOffSet = new byte[]
{
(byte)tokenCryptoData.TokenBaseParams.OTPOffSet
};
byte[] _oTPTotalDigits = new byte[]
{
(byte)tokenCryptoData.TokenBaseParams.OTPTotalDigits
};
byte[] _movingFactorType = new byte[]
{
(byte)tokenCryptoData.TokenBaseParams.MovingFactorType
};
byte[] _hOTPMovingFactorDrift = new byte[]
{
(byte)tokenCryptoData.TokenBaseParams.HOTPMovingFactorDrift
};
byte[] _dvType = new byte[]
{
(char.Parse(deviceType.Substring(0, 1)) <= '9' && char.Parse(deviceType.Substring(0, 1)) >= '0') ? byte.Parse(deviceType.Substring(0, 1)) : ((byte)char.Parse(deviceType.Substring(0, 1))),
(char.Parse(deviceType.Substring(1, 1)) <= '9' && char.Parse(deviceType.Substring(1, 1)) >= '0') ? byte.Parse(deviceType.Substring(1, 1)) : ((byte)char.Parse(deviceType.Substring(1, 1)))
};
byte[] _pin = HashBaseFunction.createBinaryHash(BaseFunctions.convertStringToByteArray(pin));
byte[] _movingFactor = BitConverter.GetBytes(tokenCryptoData.CryptoData.MovingFactor);
byte[] _serialNumber = BaseFunctions.HexDecoder(tokenCryptoData.CryptoData.InternalSerialNumber);
byte[] _internalKey = tokenCryptoData.GetTokenSeed(masterKey);
Buffer.BlockCopy(_internalKey, 0, cryptoBlock, 0, 32);
Buffer.BlockCopy(_movingFactor, 0, cryptoBlock, 32, 8);
Buffer.BlockCopy(_oTPTotalDigits, 0, cryptoBlock, 40, 1);
Buffer.BlockCopy(_oTPOffSet, 0, cryptoBlock, 41, 1);
Buffer.BlockCopy(_movingFactorType, 0, cryptoBlock, 42, 1);
Buffer.BlockCopy(_hOTPMovingFactorDrift, 0, cryptoBlock, 43, 1);
Buffer.BlockCopy(_dvType, 0, blob, 0, 2);
Buffer.BlockCopy(_pin, 0, blob, 2, 32);
Buffer.BlockCopy(_serialNumber, 0, blob, 34, 32);
Buffer.BlockCopy(HOTPCipher.encrypt(cryptoBlock, HOTPCipherInitialize.createCryptKey(_serialNumber, pin)), 0, blob, 66, 48);
tokenBlob = BaseFunctions.HexEncoder(blob);
result = true;
}
}
catch (Exception ex)
{
SAFLOGGER.Write(SAFLOGGER.LOGGEREventID.EXCEPTION, "SAFCORE", new string[]
{
"http://sfexpand.SAFCore.BLOBStructInfSrv.softfinanca.com/",
Assembly.GetExecutingAssembly().FullName.ToString(),
ex.ToString()
});
tokenBlob = null;
result = false;
}
return(result);
}