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  2. Caesar cipher - Wikipedia

    en.wikipedia.org/wiki/Caesar_cipher

    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 .

  3. Pigpen cipher - Wikipedia

    en.wikipedia.org/wiki/Pigpen_cipher

    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.

  4. Enigma machine - Wikipedia

    en.wikipedia.org/wiki/Enigma_machine

    t. e. 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.

  5. Google's AI translation tool seems to have invented its own ...

    techcrunch.com/2016/11/22/googles-ai-translation-

    8:00 AM PDTApril 28, 2024. All right, don't panic, but computers have created their own secret language and are probably talking about us right now. Well, that's kind of an oversimplification, and ...

  6. Kryptos - Wikipedia

    en.wikipedia.org/wiki/Kryptos

    Morse code. The translations of the International Morse code (sometimes called K0) that are ascribed to the copper slabs when read facing the south: E E VIRTUALLY E | E E E E E E INVISIBLE DIGETAL E E E | INTERPRETATIT E E SHADOW E E | FORCES E E E E E LUCID E E E | MEMORY E T IS YOUR | POSITION E SOS RQ. Solution of passage 1

  7. Code talker - Wikipedia

    en.wikipedia.org/wiki/Code_talker

    A code talker was a person employed by the military during wartime to use a little-known language as a means of secret communication. The term is most often used for United States service members during the World Wars who used their knowledge of Native American languages as a basis to transmit coded messages.

  8. Copiale cipher - Wikipedia

    en.wikipedia.org/wiki/Copiale_cipher

    The Copiale cipher is an encrypted manuscript consisting of 75,000 handwritten characters filling 105 pages in a bound volume. [1] Undeciphered for more than 260 years, the document was decrypted in 2011 with computer assistance. An international team consisting of Kevin Knight of the University of Southern California Information Sciences ...

  9. List of U.S. security clearance terms - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._security...

    SCI information may be either Secret or Top Secret, but in either case it has additional controls on dissemination beyond those associated with the classification level alone. In order to gain SCI Access, one would need to have a Single Scope Background Investigation (SSBI).

  10. Esoteric programming language - Wikipedia

    en.wikipedia.org/wiki/Esoteric_programming_language

    An esoteric programming language (sometimes shortened to esolang) is a programming language designed to test the boundaries of computer programming language design, as a proof of concept, as software art, as a hacking interface to another language (particularly functional programming or procedural programming languages), or as a joke.

  11. AI language translation startup DeepL nabs $300M on a $2B ...

    techcrunch.com/2024/05/22/deepl-the-ai-language...

    DeepL, which builds automated text translation and writing tools that compete against the likes of Google Translate and Grammarly, said on Wednesday that it has raised an additional $300 million ...