This project implements a Multiplicative Cipher, a classical encryption technique, enhanced with a custom-designed hashing function to dynamically modify the encryption key. The goal is to improve ...

def caesar_encrypt(plaintext, shift): """Encrypts the plaintext using Caesar Cipher with a given shift.""" encrypted_text = "" for char in plaintext: if char.isalpha(): # Process only alphabetic ...

Abstract: We propose a coherent receiver with LO phase modulation and experimentally demonstrate penalty-less optical decryption of PSK Y-00 quantum stream ciphers. The decryption process is ...