This is a tool to Encrypt/Decrypt a message with Playfair chiper algorithm. The Playfair cipher or Playfair square is a manual symmetric encryption technique and was the first literal digraph substitution cipher.
Simple, if you familiar with java code You can download the source and modify then compile it. If You not too familiar with java, You can download the jar files from DISTRIBUTION.The Interface is really simple. Look at the Screenshot below:
1. First, You must select Encryption or Decryption method.
2. Then enter your key (6 characters minimum). If your key less than 6 characters, it will raise an error popup.
3. Then choose, to replace the "J" letter with "I" or not.
4. Enter your text, then click start
5. Your Encrypted text will be printed in Output Text
6. After that, you can copy the result by clicking on Copy Output button
So, simple right? Have fun!
Change Log:
1. Fixing Output. Now in encryption method, the output will added with white space every 2 characters.
2. Fixing Input. In decryption method, all white space in Input will be removed
SCREENSHOT V.1.0.2
