static void TestRotors()
{
Rotor rotorIII = Rotor.III;
Rotor rotorVI = Rotor.VI;
Rotor rotorI = Rotor.I;
for (char ch = 'A'; ch <= 'Z'; ch++)
{
char ech = rotorIII.In(ch);
char och = rotorIII.Out(ech);
Console.WriteLine("{0} => {1} => {2}", ch, ech, och);
}
Console.WriteLine("________________________________");
Console.ReadLine();
for (char ch = 'A'; ch <= 'Z'; ch++)
{
char ech = rotorVI.In(ch);
char och = rotorVI.Out(ech);
Console.WriteLine("{0} => {1} => {2}", ch, ech, och);
}
Console.WriteLine("________________________________");
Console.ReadLine();
for (char ch = 'A'; ch <= 'Z'; ch++)
{
char ech = rotorI.In(ch);
char och = rotorI.Out(ech);
Console.WriteLine("{0} => {1} => {2}", ch, ech, och);
}
Console.WriteLine("________________________________");
Console.ReadLine();
Reflector reflector = Reflector.A;
rotorIII.Increment();
for (char ch = 'A'; ch <= 'Z'; ch++)
{
char c1 = rotorIII.In(ch);
char c2 = rotorVI.In(c1);
char c3 = rotorI.In(c2);
char r = reflector.Reflect(c3);
char c4 = rotorI.Out(r);
char c5 = rotorVI.Out(c4);
char c6 = rotorIII.Out(c5);
Console.WriteLine("{0} => {1} => {2} => {3} => {4} => {5} => {6} => {7}", ch, c1, c2, c3, r, c4, c5, c6);
char dc1 = rotorIII.In(c6);
char dc2 = rotorVI.In(dc1);
char dc3 = rotorI.In(dc2);
char dr = reflector.Reflect(dc3);
char dc4 = rotorI.Out(dr);
char dc5 = rotorVI.Out(dc4);
char dc6 = rotorIII.Out(dc5);
Console.WriteLine("{7} <= {6} <= {5} <= {4} <= {3} <= {2} <= {1} <= {0}", c6, dc1, dc2, dc3, dr, dc4, dc5, dc6);
Console.WriteLine("______________________________________________________________________________________");
Console.ReadLine();
}
}
static void TestRotors()
{
Rotor rotorIII = Rotor.III;
Rotor rotorVI = Rotor.VI;
Rotor rotorI = Rotor.I;
for (char ch = 'A'; ch <= 'Z'; ch++)
{
char ech = rotorIII.In(ch);
char och = rotorIII.Out(ech);
Console.WriteLine("{0} => {1} => {2}", ch, ech, och);
}
Console.WriteLine("________________________________");
Console.ReadLine();
for (char ch = 'A'; ch <= 'Z'; ch++)
{
char ech = rotorVI.In(ch);
char och = rotorVI.Out(ech);
Console.WriteLine($"{ch} => {ech} => {och}");
}
Console.WriteLine("________________________________");
Console.ReadLine();
for (char ch = 'A'; ch <= 'Z'; ch++)
{
char ech = rotorI.In(ch);
char och = rotorI.Out(ech);
Console.WriteLine($"{ch} => {ech} => {och}");
}
Console.WriteLine("________________________________");
Console.ReadLine();
Reflector reflector = Reflector.A;
rotorIII.Increment();
for (char ch = 'A'; ch <= 'Z'; ch++)
{
char c1 = rotorIII.In(ch);
char c2 = rotorVI.In(c1);
char c3 = rotorI.In(c2);
char r = reflector.Reflect(c3);
char c4 = rotorI.Out(r);
char c5 = rotorVI.Out(c4);
char c6 = rotorIII.Out(c5);
Console.WriteLine($"{ch} => {c1} => {c2} => {c3} => {r} => {c4} => {c5} => {c6}");
char dc1 = rotorIII.In(c6);
char dc2 = rotorVI.In(dc1);
char dc3 = rotorI.In(dc2);
char dr = reflector.Reflect(dc3);
char dc4 = rotorI.Out(dr);
char dc5 = rotorVI.Out(dc4);
char dc6 = rotorIII.Out(dc5);
Console.WriteLine($"{dc6} <= {dc5} <= {dc4} <= {dr} <= {dc3} <= {dc2} <= {dc1} <= {c6}");
Console.WriteLine("______________________________________________________________________________________");
Console.ReadLine();
}
}
/// <summary>
/// Emulate a key press on the Enigma Machine
/// </summary>
/// <param name="ch"></param>
/// <returns>Encrypted character</returns>
public char Process(char ch)
{
if (!CHARACTERS.Contains(ch))
{
return(ch);
}
//Console.Write("{0} => ", ch);
// first step runs through the plugboard
ch = PlugBoard[ch];
//Console.Write("{0} => ", ch);
// go IN through each rotor
for (int i = 0; i < Rotors.Count; i++)
{
ch = Rotors[i].In(ch);
//Console.Write("{0} => ", ch);
}
// feed through the reflector.
ch = Reflector.Reflect(ch);
//Console.Write("{0} => ", ch);
// go OUT through each rotor in reverse order
for (int i = Rotors.Count - 1; i >= 0; i--)
{
ch = Rotors[i].Out(ch);
//Console.Write("{0} => ", ch);
}
// back out through the plugboard again
ch = PlugBoard[ch];
//Console.WriteLine("{0}", ch);
for (int i = 0; i < Rotors.Count; i++)
{
if (!Rotors[i].Increment())
{
break;
}
}
return(ch);
}
public string Transform(
int[] wheelOrientations,
string cipherText)
{
HandleTransformErrors(wheelOrientations);
var currentlyRotatingWheel = 0;
Reflector reflector = new Reflector();
StringBuilder codeBuilder = new StringBuilder();
foreach (char cipherLetter in cipherText)
{
if (cipherLetter == ' ')
{
codeBuilder.Append(cipherLetter);
continue;
}
char wheelZeroEncrypt = CryptCharacter(0, wheelOrientations[0], cipherLetter, CryptType.Encrypt);
char wheelOneEncrypt = CryptCharacter(1, wheelOrientations[1], wheelZeroEncrypt, CryptType.Encrypt);
char wheelTwoEncrypt = CryptCharacter(2, wheelOrientations[2], wheelOneEncrypt, CryptType.Encrypt);
char reflectedResult = reflector.Reflect(wheelTwoEncrypt);
char wheelTwoDecrypt = CryptCharacter(2, wheelOrientations[2], reflectedResult, CryptType.Decrypt);
char wheelOneDecrypt = CryptCharacter(1, wheelOrientations[1], wheelTwoDecrypt, CryptType.Decrypt);
char wheelZeroDecrypt = CryptCharacter(0, wheelOrientations[0], wheelOneDecrypt, CryptType.Decrypt);
codeBuilder.Append(wheelZeroDecrypt);
wheelOrientations = RotateCurrentWheel(wheelOrientations, currentlyRotatingWheel);
currentlyRotatingWheel = SetCurrentlyRotatingWheel(wheelOrientations, currentlyRotatingWheel);
}
return(codeBuilder.ToString());
}