It can create a random monoalphabetic cipher, encrypt messages using that cipher, and decrypt the encrypted messages. See the code below −Exampleimport java.util.*; public class MonoalphabeticCipher { public static Map<Character, Character> randomMonoalphaCipher(String pool) { List<Character> ...
Caeser cipher is a monoalphabetic cipher in which each character in plaintext is transferred to another character by a distance of three. It is simply an additive cipher with a constant key value of 3.For example, if the plaintext contains the character 'a', the ciphertext counterpart will ...