Implementation Three Pass Protocol on Multiplicative Cipher

Abstract

A three-pass protocol one of the frameworks in cryptography that provides privacy and multiplicative cipher is one of the traditional cryptographic algorithms that based on symmetric key encryption algorithms. In this research, we used the three-pass protocol method with the multiplicative cipher by combine them, this combination allows the sender and the receiver to exchange and distribute encryption key securely, hence, they don't need to send the key because each of them using its personal key for the message encryption and decryption process, so, the security of the multiplicative cipher improved.