Deep learning project and theory videos every week! Next To Trump, Carney Opens G7 Summit With Warning The most powerful conventional engine of warfare ever built is headed for Iran 2 Dead, 32 Injured ...

In general, you want to avoid writing down sensitive information and just keeping it in your head but that's not always an option. If you have to write down a password, or some other sensitive ...

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 ...