public byte[] GenerateKey()
{
byte[] firstKey, secondKey, thirdKey;
firstKey = FirstLfsr.GenerateKey();
secondKey = SecondLfsr.GenerateKey();
thirdKey = ThirdLfsr.GenerateKey();
var resultKey = new byte[BytesMessageLength];
for (int i = 0; i < BytesMessageLength; ++i)
{
resultKey[i] = (byte)((firstKey[i] & secondKey[i]) | (~firstKey[i] & thirdKey[i]));
}
return(resultKey);
}
public void Initialize(string InitialState, long bytesMessageLength)
{
var fixedBinaryString = GetFixedBinaryString(InitialState);
if (fixedBinaryString.Length != Taps2[0])
{
throw new ArgumentException($"Initial state length was not right. Try setting it to default value '{Taps2[0]}' ");
}
InitialState2 = Convert.ToInt32(InitialState, 2);
InitialState1 = Convert.ToInt32(InitialState.PadLeft(Taps1[0], '1'), 2);
InitialState3 = Convert.ToInt32(InitialState.PadLeft(Taps3[0], '1'), 2);
BytesMessageLength = bytesMessageLength;
FirstLfsr.Initialize(InitialState1, BytesMessageLength);
SecondLfsr.Initialize(InitialState2, BytesMessageLength);
ThirdLfsr.Initialize(InitialState2, BytesMessageLength);
}