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The Enigma machine is a cipher device developed and used in the early- to mid-20th century to protect commercial, diplomatic, and military communication. It was employed extensively by Nazi Germany during World War II, in all branches of the German military. The Enigma machine was considered so secure that it was used to encipher the most top ...
Before Rejewski started work on the Enigma, the French had a spy, Hans-Thilo Schmidt, who worked at Germany's Cipher Office in Berlin and had access to some Enigma documents. Even with the help of those documents, the French did not make progress on breaking the Enigma. The French decided to share the material with their British and Polish allies.
In cryptography, a Caesar cipher, also known as Caesar's cipher, the shift cipher, Caesar's code, or Caesar shift, is one of the simplest and most widely known encryption techniques. It is a type of substitution cipher in which each letter in the plaintext is replaced by a letter some fixed number of positions down the alphabet.
This is a glossary of words related to the Mafia, primarily the Italian American Mafia and Sicilian Mafia . administration: the top-level "management" of an organized crime family -- the boss, underboss and consigliere. [1] associate: one who works with mobsters, but has not been asked to take the vow of Omertà; an almost confirmed, or made guy.
The pigpen cipher (alternatively referred to as the masonic cipher, Freemason's cipher, Rosicrucian cipher, Napoleon cipher, and tic-tac-toe cipher) [2] [3] is a geometric simple substitution cipher, which exchanges letters for symbols which are fragments of a grid. The example key shows one way the letters can be assigned to the grid.
Arbeit macht frei ( [ˈaʁbaɪt ˈmaxt ˈfʁaɪ] ⓘ) is a German phrase translated as "Work makes one free" or more idiomatically "Work sets you free" or "work liberates". The phrase originates from the 1873 novel Die Wahrheit macht frei ("The truth sets free") by Lorenz Diefenbach, a pastor and philologist, itself being a reference to John 8: ...
Book cipher. The King James Bible, a highly available publication suitable for the book cipher. A book cipher is a cipher in which each word or letter in the plaintext of a message is replaced by some code that locates it in another text, the key . A simple version of such a cipher would use a specific book as the key, and would replace each ...
Hard coding. Hard coding (also hard-coding or hardcoding) is the software development practice of embedding data directly into the source code of a program or other executable object, as opposed to obtaining the data from external sources or generating it at runtime . Hard-coded data typically can only be modified by editing the source code and ...