//Selector function (Menu)
public List <string> SelectEncryption(string choice, string msg)
{
byte[] key;
byte[] iv;
byte[] encMsg;
byte[] decMsg;
switch (choice)
{
//DEC
//Selects and uses DES encryption
case "1":
key = RandomNumberGenerator(8);
iv = RandomNumberGenerator(8);
encWatch.Start();
encMsg = encryptor.DESEncrypt(msg, key, iv);
encWatch.Stop();
decWatch.Start();
decMsg = decryptor.DESDecrypt(encMsg, key, iv);
decWatch.Start();
return(ReturnStrings(key, iv, encMsg, decMsg, encWatch, decWatch));
//TripleDES
//Selects and uses TripleDES encryption
case "2":
key = RandomNumberGenerator(24);
iv = RandomNumberGenerator(8);
encWatch.Start();
encMsg = encryptor.TripleDESEncrypt(msg, key, iv);
encWatch.Stop();
decWatch.Start();
decMsg = decryptor.TripleDESDecrypt(encMsg, key, iv);
decWatch.Stop();
return(ReturnStrings(key, iv, encMsg, decMsg, encWatch, decWatch));
//AES
//Selects and uses AES encryption
case "3":
key = RandomNumberGenerator(32);
iv = RandomNumberGenerator(16);
encWatch.Start();
encMsg = encryptor.AESEncrypt(msg, key, iv);
encWatch.Stop();
decWatch.Start();
decMsg = decryptor.AESDecrypt(encMsg, key, iv);
decWatch.Start();
return(ReturnStrings(key, iv, encMsg, decMsg, encWatch, decWatch));
//Default Nothing Happens.
default:
return(null);
}
}