wiki. secretGeekCategory: crypto
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Cryptography: hidden writing. Cryptanalysis: the art or process of uncovering hidden writing without being told the key.
Caesar Cipher
The simplest cipher (and one of the oldest) the Caesar shift is named after Julius Caesar. The month of July is named after Julius, and he also has his own salad, his own method of having been delivered as a baby (which makes no sense as his mother and the surgeons deserve credi…
Leon Coin
Here are the rules of Leon Coin (lb-coin). The emoji: 🏅 ...is used as the official emoji until a new emoji issuing foundation is established as a subsidiary of unicode and a custom emoji is thus available. Alternatively I would like to create an SVG to act as the official lo…
Pigpen Cipher
Also known as: The Freemason's Cipher. A substitution cipher that has particularly distinctive looking characters. The encryption/decryption key can be quickly re-created by hand, once you know the basic idea. Give anyone twenty seconds with a pencil and paper, and they can r…
Steganography
Steganography is about *smuggling* information. It is the process of hiding one message inside another in such a way that a person finding the outer message will not realise that a second message is hidden within. Consider a prisoner who needs to receive a secret message. They k…
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