public string Encrypt(string message, string key)
{
int tmp;
string output = "";
message = utilityObject.messageFilter(message);
for (int i = 0; i < message.Length; i++)
{
tmp = ((int)charsToNumbersObject[(int)message[i] - 97] + Convert.ToInt32(key) - 97) % 26;
output += charsToNumbersObject[tmp];
}
output = utilityObject.toCapitalLetters(output);
return(output);
}
// final function
public string Encrypt(string plainText, string key)
{
string localMessage;
string localKey;
char[,] localMatrix;
string[] localDiagrams;
string localCipher;
Utilities utilityObject = new Utilities();
char[] charsToNumbersObject = utilityObject.getCharsToNumbersMap();
//filter message and key
localMessage = utilityObject.messageFilter(plainText);
localKey = utilityObject.messageFilter(key);
// working on key >>
// remove key duplication
localKey = removeDuplicates(localKey);
// matrix generation
localMatrix = matrixFilling(localKey, charsToNumbersObject);
// working on message >>
// message handling
localMessage = plainTextHandling(localMessage);
// convert message to diagrams
localDiagrams = toDiagrams(localMessage);
// generating Cipher
localCipher = diagramsMapping(localDiagrams, localMatrix);
// to Capital Letters
localCipher = utilityObject.toCapitalLetters(localCipher);
return localCipher;
}
public string Decrypt(string CipherText, string key)
{
string localMessage;
string localKey;
char[,] localMatrix;
string[] localDiagrams;
string localCipher;
Utilities utilityObject = new Utilities();
char[] charsToNumbersObject = utilityObject.getCharsToNumbersMap();
//filter message and key
localMessage = utilityObject.messageFilter(CipherText);
localKey = utilityObject.messageFilter(key);
// working on key >>
// remove key duplication
localKey = removeDuplicates(localKey);
// matrix generation
localMatrix = matrixFilling(localKey, charsToNumbersObject);
// working on message >>
// message handling
localMessage = plainTextHandling(localMessage);
// convert message to diagrams
localDiagrams = toDiagrams(localMessage);
// generating Cipher
localCipher = diagramsMappingDec(localDiagrams, localMatrix);
// localCipher = diagramsMapping(localDiagrams, localMatrix);
// to Capital Letters
localCipher = utilityObject.toCapitalLetters(localCipher);
return(localCipher);
}