33 relations: ADFGVX cipher, American Civil War, Anagram, Ancient Greece, Ban (unit), Bifid cipher, Bijection, Block cipher, Ciphertext, Claude Shannon, Code (cryptography), Confusion and diffusion, Cryptanalysis, Cryptography, Frequency distribution, Genetic algorithm, 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, Transposition cipher, Trifid cipher, VIC cipher, World War I.
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.
The American Civil War, widely known in the United States as simply the Civil War as well as other sectional names, was a civil war fought from 1861 to 1865 to determine the survival of the Union or independence for the Confederacy.
An anagram is a type of word play, the result of rearranging the letters of a word or phrase to produce a new word or phrase, using all the original letters exactly once; for example, the word anagram can be rearranged into nag-a-ram.
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Ancient Greece was a civilization belonging to a period of Greek history that lasted from the Archaic period of the 8th to 6th centuries BC to the end of antiquity (circa 600 AD).
A ban, sometimes called a hartley (symbol Hart) 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.
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In classical cryptography, the bifid cipher is a cipher which combines the Polybius square with transposition, and uses fractionation to achieve diffusion.
In mathematics, a bijection, bijective function or one-to-one correspondence is a function between the elements of two sets, where every element of one set is paired with exactly one element of the other set, and every element of the other set is paired with exactly one element of the first set.
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In cryptography, a block cipher is a deterministic algorithm operating on fixed-length groups of bits, called blocks, with an unvarying transformation that is specified by a symmetric key.
In cryptography, ciphertext (or cyphertext) is the result of encryption performed on plaintext using an algorithm, called a cipher.
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Claude Elwood Shannon (April 30, 1916 – February 24, 2001) was an American mathematician, electronic engineer, and cryptographer known as "the father of information theory".
In cryptology, a code is a method used to transform a message into an obscured form so it cannot be understood.
In cryptography, confusion and diffusion are two properties of the operation of a secure cipher which were identified by Claude Shannon in his paper Communication Theory of Secrecy Systems, published in 1949.
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.
Cryptography or cryptology; from Greek κρυπτός kryptós, "hidden, secret"; and γράφειν graphein, "writing", or -λογία -logia, "study", respectively is the practice and study of techniques for secure communication in the presence of third parties (called adversaries).
In statistics, a frequency distribution is a table that displays the frequency of various outcomes in a sample.
In the field of artificial intelligence, a genetic algorithm (GA) is a search heuristic that mimics the process of natural selection.
In mathematics, an inverse function is a function that "reverses" another function.
Le Matin was a French daily newspaper first published in 1884 and discontinued in 1944.
The Maquis were rural guerrilla bands of French Resistance fighters, called maquisards, during the Occupation of France in World War II.
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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The Office of Strategic Services (OSS) was a United States intelligence agency formed during World War II.
The following outline is provided as an overview of and topical guide to cryptography: Cryptography (or cryptology) – practice and study of hiding information.
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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In cryptography, plaintext is information a sender wishes to transmit to a receiver.
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In cryptography, the Polybius square, also known as the Polybius checkerboard, is a device invented by the Ancient Greek historian and scholar Polybius, for fractionating plaintext characters so that they can be represented by a smaller set of symbols.
The rail fence cipher (also called a zigzag cipher) is a form of transposition cipher.
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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The Special Operations Executive (SOE) was a British World War II organisation.
In cryptography, a substitution cipher is a method of encoding 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.
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.
In classical cryptography, the trifid cipher is a cipher invented around 1901 by Felix Delastelle, which extends the concept of the bifid cipher to a third dimension, allowing each symbol to be fractionated into 3 elements instead of two.
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 (WWI or WW1), also known as the First World War or the Great War, was a global war centered in Europe that began on 28 July 1914 and lasted until 11 November 1918.
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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.