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Transposition cipher

Index Transposition cipher

In cryptography, a transposition cipher is a method of encryption by which the positions held by units of plaintext (which are commonly characters or groups of characters) are shifted according to a regular system, so that the ciphertext constitutes a permutation of the plaintext. [1]

32 relations: ADFGVX cipher, American Civil War, Anagram, Ancient Greece, Bifid cipher, Bijection, Block cipher, Ciphertext, Claude Shannon, Code (cryptography), Confusion and diffusion, Cryptanalysis, Cryptography, Frequency distribution, Genetic algorithm, Hartley (unit), Inverse function, Le Matin (France), Maquis (World War II), Morse code, Office of Strategic Services, Outline of cryptography, Permutation, Plaintext, Polybius square, Rail fence cipher, Scytale, Special Operations Executive, Substitution cipher, Trifid cipher, VIC cipher, World War I.

ADFGVX cipher

In cryptography, the ADFGVX cipher was a field cipher used by the German Army on the Western Front during World War I. ADFGVX was in fact an extension of an earlier cipher called ADFGX.

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American Civil War

The American Civil War (also known by other names) was a war fought in the United States from 1861 to 1865.

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Anagram

An anagram is a word or phrase formed by rearranging the letters of a different word or phrase, typically using all the original letters exactly once.

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Ancient Greece

Ancient Greece was a civilization belonging to a period of Greek history from the Greek Dark Ages of the 13th–9th centuries BC to the end of antiquity (AD 600).

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Bifid cipher

In classical cryptography, the bifid cipher is a cipher which combines the Polybius square with transposition, and uses fractionation to achieve diffusion.

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Bijection

In mathematics, a bijection, bijective function, or one-to-one correspondence is a function between the elements of two sets, where each element of one set is paired with exactly one element of the other set, and each element of the other set is paired with exactly one element of the first set.

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Block cipher

In cryptography, a block cipher is a deterministic algorithm operating on fixed-length groups of bits, called a block, with an unvarying transformation that is specified by a symmetric key.

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Ciphertext

In cryptography, ciphertext or cyphertext is the result of encryption performed on plaintext using an algorithm, called a cipher.

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Claude Shannon

Claude Elwood Shannon (April 30, 1916 – February 24, 2001) was an American mathematician, electrical engineer, and cryptographer known as "the father of information theory".

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Code (cryptography)

Cryptography in simple terms means the use of any alphabet or numerical statement which has a meaning or stores a message.

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Confusion and diffusion

In cryptography, confusion and diffusion are two properties of the operation of a secure cipher identified by Claude Shannon in his 1945 classified report A Mathematical Theory of Cryptography. These properties, when present, work to thwart the application of statistics and other methods of cryptanalysis.

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Cryptanalysis

Cryptanalysis (from the Greek kryptós, "hidden", and analýein, "to loosen" or "to untie") is the study of analyzing information systems in order to study the hidden aspects of the systems.

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Cryptography

Cryptography or cryptology (from κρυπτός|translit.

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Frequency distribution

In statistics, a frequency distribution is a list, table or graph that displays the frequency of various outcomes in a sample.

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Genetic algorithm

In computer science and operations research, a genetic algorithm (GA) is a metaheuristic inspired by the process of natural selection that belongs to the larger class of evolutionary algorithms (EA).

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Hartley (unit)

The hartley (symbol Hart), also called a ban, or a dit (short for decimal digit), is a logarithmic unit which measures information or entropy, based on base 10 logarithms and powers of 10, rather than the powers of 2 and base 2 logarithms which define the bit, or shannon.

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Inverse function

In mathematics, an inverse function (or anti-function) is a function that "reverses" another function: if the function applied to an input gives a result of, then applying its inverse function to gives the result, and vice versa.

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Le Matin (France)

Le Matin was a French daily newspaper first published in 1884 and discontinued in 1944.

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Maquis (World War II)

The Maquis were rural guerrilla bands of French Resistance fighters, called maquisards, during the Occupation of France in World War II.

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Morse code

Morse code is a method of transmitting text information as a series of on-off tones, lights, or clicks that can be directly understood by a skilled listener or observer without special equipment.

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Office of Strategic Services

The Office of Strategic Services (OSS) was a wartime intelligence agency of the United States during World War II, and a predecessor of the modern Central Intelligence Agency (CIA).

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Outline of cryptography

The following outline is provided as an overview of and topical guide to cryptography: Cryptography (or cryptology) – practice and study of hiding information.

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Permutation

In mathematics, the notion of permutation relates to the act of arranging all the members of a set into some sequence or order, or if the set is already ordered, rearranging (reordering) its elements, a process called permuting.

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Plaintext

In cryptography, plaintext or cleartext is unencrypted information, as opposed to information encrypted for storage or transmission.

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Polybius square

In cryptography, the Polybius square, also known as the Polybius checkerboard, is a device invented by the Ancient Greeks Cleoxenus and Democleitus, and perfected by the Ancient Greek historian and scholar Polybius, for fractionating plaintext characters so that they can be represented by a smaller set of symbols.

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Rail fence cipher

The rail fence cipher (also called a zigzag cipher) is a form of transposition cipher.

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Scytale

In cryptography, a scytale (rhymes approximately with Italy; also transliterated skytale, Greek σκυτάλη "baton") is a tool used to perform a transposition cipher, consisting of a cylinder with a strip of parchment wound around it on which is written a message.

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Special Operations Executive

The Special Operations Executive (SOE) was a British World War II organisation.

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Substitution cipher

In cryptography, a substitution cipher is a method of encrypting by which units of plaintext are replaced with ciphertext, according to a fixed system; the "units" may be single letters (the most common), pairs of letters, triplets of letters, mixtures of the above, and so forth.

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Trifid cipher

The trifid cipher is a classical cipher invented by Félix Delastelle and described in 1902.

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VIC cipher

The VIC cipher was a pencil and paper cipher used by the Soviet spy Reino Häyhänen, codenamed "VICTOR".

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World War I

World War I (often abbreviated as WWI or WW1), also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918.

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Redirects here:

Columnar disposition, Columnar transposition, Columnar transposition cipher, Double transportation cipher, Double transposition, Double transposition cipher, Permutation cipher, Transposition (cipher), Transposition (cryptography), Transposition ciphers, Transposition cryptography.

References

[1] https://en.wikipedia.org/wiki/Transposition_cipher

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