Caesar/ROT String Encryption
Well I know some people are wanting to encrypt there strings in there hacks, I dont code in C++ and I am just learning C#, One of my projects in C# for learning purposes was to convert some of my Delphi Encryptions, Here you have a C# Caesar/ROT encryption, don't laugh at my C# coding as im just learning but this seems to run very good and maybe it might help the guys who write in C++, It should be easyer to read than Delphi due to the similarties between C++ and C#
//Edit
Decided to include the whole class which also include the Vigener Cipher(uses a key). I personally would still convert the ROT cipher for your string encryption in C++ for the hacks.
Suggestions would be to change the sTable to include all readable alphabet Letters and numbers, even include special chars also this is a Rotation of 13 change this modifying this line
return Caesar(sSource, 13, false); change 13 to how ever many positions, to decrypt the encrypted string just set this line to True
//Edit
Decided to include the whole class which also include the Vigener Cipher(uses a key). I personally would still convert the ROT cipher for your string encryption in C++ for the hacks.
Code:
/*
Class : StringCrypt.cs
Aurthor: Departure
Url : www.Cheesydoodle.com
Info:
Encrypt Strings with Vigenere Cipher and ROT Cipher(Caesar Cipher, Rot13 ect..)
Based on information from wiki
*/
internal class StringCrypt
{
public static string Vigenere(string sSource, string sKey, int iTableSize = 94, bool bDecrypt = false)
{
//Variables
int i = 32;
int iPosText;
int iPosKey;
string sTable = "";
string sResult = "";
//Create Table
while (i < (iTableSize + 32))
{
sTable += ((char)i);
i++;
}
//Make Key same size as Cipher
while (sSource.Length >= sKey.Length)
{
sKey = string.Concat(sKey, sKey);
}
//Vigenere Routine
i = 0;
while (i <= (sSource.Length - 1))
{
if (sTable.IndexOf(sSource[i]) == -1)
sResult += sSource[i];
else
{
iPosText = sTable.IndexOf(sSource[i]);
iPosKey = sTable.IndexOf(sKey[i]);
if (bDecrypt)
sResult += sTable[(((iPosText + iTableSize) - iPosKey) % iTableSize)];
else
sResult += sTable[((iPosText + iPosKey) % iTableSize)];
}
i++;
}
return sResult;
}
public static string Caesar(string sSource, int iKey, bool bDecrypt = false)
{
//Variables
string sResult = "";
string sTable = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
int iPosText;
int i;
//Convert to Uppercase
sSource = sSource.ToUpper();
//Caesar Routine
i = 0;
while (i <= (sSource.Length - 1))
{
if (sTable.IndexOf(sSource[i]) == -1)
sResult += sSource[i];
else
{
iPosText = sTable.IndexOf(sSource[i]);
if (bDecrypt)
sResult += sTable[(((iPosText + sTable.Length) - iKey) % sTable.Length)];
else
sResult += sTable[((iPosText + iKey) % sTable.Length)];
}
i++;
}
return sResult;
}
public static string ROT13(string sSource)
{
return Caesar(sSource, 13, false);
}
}
Suggestions would be to change the sTable to include all readable alphabet Letters and numbers, even include special chars also this is a Rotation of 13 change this modifying this line
return Caesar(sSource, 13, false); change 13 to how ever many positions, to decrypt the encrypted string just set this line to True