caesar-cipher-tool/ │ ├── main.py # Entry point — interactive CLI menu │ ├── modules/ │ ├── __init__.py │ ├── cipher.py # Core encrypt/decrypt logic │ ├── cracker.py # Brute force & frequency analysis ...

This project implements the classical Playfair cipher, a manual symmetric encryption technique based on digraph substitution. The program generates a 5×5 key matrix from a user-provided key (with the ...

Abstract: Protection of data from cyber attacks and illegal access involves the application of cryptographic methods. Using images to encrypt and hide information, visual cryptography presents a new ...

VanEck’s head of digital asset research Matthew Sigel said that Bitcoin miners are “sitting on a gold mine” as power-hungry AI demand reshapes electricity and data-center markets. He argued miners are ...