Introduction to ciphers and substitution. Alice and Bob and Carl and Julius: terminology and Caesar Cipher ; The key to the matter: generalizing the Caesar Cipher ; Multiplicative ciphers ; Affine ...

The arena of creating secure environments in the hardware and software industries is somewhat shrouded in mystery and misunderstanding. Certainly, some types of ciphers are relatively straightforward ...

1. Introduction -- 2. From Julius Caesar to simple substitution -- 3. Polyalphabetic systems -- 4. Jigsaw ciphers -- 5. Two-letter ciphers -- 6. Codes -- 7. Ciphers for spies -- 8. Producing random ...

Introduction The Shorter Oxford English Dictionary lists the 5th meaning of the word cipher as, “A secret manner of writing by any of various methods, intelligible only to those possessing the key ...

Curious how the Caesar Cipher works? This Python tutorial breaks it down in a simple, beginner-friendly way. Learn how to encode and decode messages using one of the oldest and most famous encryption ...

Ghana Chapter has joined the global community in commemorating Global Encryption Day 2025 with an insightful session that ...

A longstanding joke in the cybersecurity industry is that the only way to truly secure data and information is to store it offline on a machine that cannot be connected to power or the internet — and ...

CSL Dualcom, a popular maker of security systems in England, is disputing claims from [Cybergibbons] that their CS2300-R model is riddled with holes. The particular device in question is a ...

Secret code or foreign language? For machines, it might not matter. Without any prior knowledge, artificial intelligence algorithms have cracked two classic forms of encryption: the Caesar cipher and ...

From the time humans started communicating with one another, there has been the need to ensure that unauthorised people do not get access to the information not intended for them. Long before the ...