Abstract: This study presents an enhanced version of the classical Hill Cipher algorithm, utilizing a rectangular key matrix to expand the key space and improve the security of digital image ...

Abstract: The present study proposes a novel cryptographic algorithm using pseudoprimes to augment secure communication systems. Unlike algorithms based on RSA, which rely on large prime numbers, the ...

When new technology lands in children’s hands, they don’t read the manual. And they don’t tell their parents. They push every button, test every limit and try to break it. It’s how kids learn. And ...