A simple method of encryption requires the use of a technique known as the Caesar cipher. The cipher works by giving a number value to a key. Each plaintext letter is replaced by a new letter ...

Caesar cipher is a very simple encryption method and is easily cracked if one studies the frequency of repeating letters. To improve the strength of the encryption method a more complex key could ...

ROT13 Cipher, based on Caesar Cipher (original illustration) The word PENCIL would be encoded as CRAPVY. Initially, the Simple Monoalphabetic ciphers were the most popular, as they were quick and ...