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  2. Pigpen cipher - Wikipedia

    en.wikipedia.org/wiki/Pigpen_cipher

    The pigpen cipher uses graphical symbols assigned according to a key similar to the above diagram. [1]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.

  3. Nyctography - Wikipedia

    en.wikipedia.org/wiki/Nyctography

    Nyctography (in Nyctography:) is a form of substitution cipher writing created by Lewis Carroll (Charles Lutwidge Dodgson) in 1891. It is written with a nyctograph (a device invented by Carroll) and uses a system of dots and strokes all based on a dot placed in the upper left corner. Using the Nyctograph, one could quickly jot down ideas or ...

  4. Thomas Brierley grave cipher - Wikipedia

    en.wikipedia.org/wiki/Thomas_Brierley_grave_cipher

    The cipher at the foot of the gravestone says "Holiness of the Lord". The Pigpen cipher was used by Freemasons in the 18th century to keep their records private and surprisingly the cipher on Thomas Brierley's grave seems to have a non-standard symbol for the letter "S". It is possible the variation in the cipher is a clue to or a key to ...

  5. Cipher - Wikipedia

    en.wikipedia.org/wiki/Cipher

    Edward Larsson's rune cipher resembling that found on the Kensington Runestone.Also includes runically unrelated blackletter writing style and pigpen cipher.. In cryptography, a cipher (or cypher) is an algorithm for performing encryption or decryption—a series of well-defined steps that can be followed as a procedure.

  6. List of Masonic abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_Masonic_Abbreviations

    Traditionally the Three dots (∴) also known as "tripunctual abbreviation" or "triple dot" is a symbol used all over the world in Freemasonry for abbreviations, signatures, and symbolic representation.

  7. Polybius square - Wikipedia

    en.wikipedia.org/wiki/Polybius_square

    The Polybius square is also used as a basic cipher called the Polybius cipher. This cipher is quite insecure by modern standards, as it is a substitution cipher with characters being substituted for pairs of digits, which is easily broken through frequency analysis. [2]

  8. Pigpen (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Pigpen_(disambiguation)

    A pigpen is literally a pen that holds pigs, also known as a sty.Pigpen may refer to: Pig-Pen, a character in Charles M. Schulz's comic strip Peanuts; Pigpen cipher, a substitution cypher in which the English letters are replaced with symbols that correspond to an easy-to-generate key

  9. Reservehandverfahren - Wikipedia

    en.wikipedia.org/wiki/Reservehandverfahren

    Reservehandverfahren (RHV) (English: Reserve Hand Procedure) was a German Naval World War II hand-cipher system used as a backup method when no working Enigma machine was available. [1] The cipher had two stages: a transposition followed by bigram substitution. In the transposition stage, the cipher clerk would write out the plaintext into a ...