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 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 ...

Microsoft is killing off an obsolete and vulnerable encryption cipher that Windows has supported by default for 26 years following more than a decade of devastating hacks that exploited it and ...

Tom Bowen is a senior editor who loves adventure games and RPGs. He's been playing video games for several decades now and writing about them professionally since 2020. Although he dabbles in news and ...

The mystery serial killer would claim the lives of at least five victims and was in the midst of his protracted cat-and-mouse game with police and the media. He had at that stage attacked two young ...

Trying to find the newest Rivals codes? This Roblox shooter made by Nosniy Games is all about battling it out in 1v1 to 5v5 matches until one side achieves the five wins needed for victory. All tested ...

7th January 2026: We checked for new Robox promo codes. Roblox codes are typically a source of fun cosmetics for your character. If you want to make your avatar stand out with a new t-shirt, hat, ...

Looking for the latest Titan Tower Defense codes? This long-running Roblox TDS game has been consistently updated for years, with codes that give you cash to purchase new units. In this guide, we’ll ...

January 8, 2026: We're still hunting around the hive for any new Bee Swarm Simulator codes we may have missed over Beesmas. What are some new Bee Swarm Simulator codes? Whether you're in the market ...

January 5, 2026: We added two new ZZZ codes for level-up materials, and removed three expired codes. What are the new Zenless Zone Zero codes? We love a freebie. Whether it's free Polychrome, ...