public static byte[] createSeed(byte[] masterKey)
{
byte[] array = BaseFunctions.secureRandom(32);
byte[] array2;
if (masterKey == null)
{
array2 = new byte[array.Length];
array.CopyTo(array2, 0);
}
else
{
array2 = new byte[masterKey.Length + array.Length];
masterKey.CopyTo(array2, 0);
array.CopyTo(array2, masterKey.Length);
}
return(HashBaseFunction.createBinaryHash(array2));
}
public static byte[] createSeed(byte[] masterKey)
{
byte[] buffer = BaseFunctions.secureRandom(32);
byte[] buffer2;
if (masterKey == null)
{
buffer2 = new byte[buffer.Length];
buffer.CopyTo(buffer2, 0);
}
else
{
buffer2 = new byte[masterKey.Length + buffer.Length];
masterKey.CopyTo(buffer2, 0);
buffer.CopyTo(buffer2, masterKey.Length);
}
return(HashBaseFunction.createBinaryHash(buffer2));
}
public static byte[] createSerialNumber(string pin)
{
return(HashBaseFunction.createBinaryHash(DateTime.Now.ToString("yyyyMMddHHmmssfff") + pin));
}
public static byte[] createCryptKey(byte[] serialNumber, string pin)
{
string text = BaseFunctions.HexEncoder(serialNumber);
return(HashBaseFunction.createBinaryHash(text.Substring(text.Length - 4, 4) + pin + text.Substring(0, 2)));
}
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);
}
public static byte[] createCryptKey(byte[] serialNumber)
{
string _str = BaseFunctions.HexEncoder(serialNumber);
return(HashBaseFunction.createBinaryHash(_str.Substring(serialNumber.Length - 4) + _str.Substring(0, 6)));
}
