Caesar Cipher

Tags

cryptography

A Substitution Cipher which [see page 10, permutes] the letters of the alphabet \( A \) forwards by some offset. For example A permutes to B in a ceaser-cipher with an offset of 1.

Decryption for a Caesar cipher is simply offseting the ciphertext character by the negative offset so B decrypts to A with an offset of 1 for the encryption.