Playfair Cipher in C (Encryption & Decryption)

The Playfair cipher or Playfair square or Wheatstone-Playfair cipher is a manual symmetric encryption technique. The scheme was invented in 1854 by Charles...

Monoalphabetic Cipher in C (Encryption & Decryption)

C Program: This file contains bidirectional Unicode text that may be interpreted or...

Caesar Cipher in C (Encryption & Decryption)

Caesar cipher, also known as Caesar's cipher, the shift cipher, Caesar's code or Caesar shift, is one of the simplest and most widely known encryption techniques....