> Command_Prompt_Blog \

Mathematics

The Mathematics of Elliptic Curve Cryptography

In 1985, Neal Koblitz and Victor Miller independently proposed using elliptic curves for cryptography. Their idea seemed exotic at the time—why use curves when simple multiplication works? Four decades later, elliptic curve cryptography (ECC) secures your Bitcoin wallet, your TLS connections, and your iPhone's Secure Enclave. This

Hill Cipher: The Mathematics of Matrix Encryption

What if you could crack an encrypted military message by guessing just nine letters? The Hill cipher—invented in 1929 by mathematician Lester S. Hill—is elegant, mathematically beautiful, and fatally flawed. It was the first practical polygraphic cipher, encrypting multiple letters at once using matrix multiplication. This post explains

The Mathematics of RSA Encryption

The Mathematics of RSA Encryption

RSA is one of those things that sounds complex until someone explains it with a clear example. Let's break it down step-by-step, with small, human-readable numbers, so it's easy to follow and fun to understand. What is RSA? RSA is a powerful and widely-used asymmetric encryption