The Affine cipher is a monoalphabetic substitution cipher that uses mathematical functions to encrypt and decrypt messages. In this cipher, each letter in the plaintext is first mapped to a number ...

Custom Modular Cipher is a symmetric encryption algorithm that uses modular arithmetic to transform each character of the plaintext using a linear equation. It is inspired by the classical Affine ...

Abstract: Computing Modular multiplicative inverse is an important step in many arithmetic algorithms used in Cryptography. For example, Montgomery modular multiplication [2] is required to find out ...