break a cipher

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• Cipher — For other uses, see Cipher (disambiguation). 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… …   Wikipedia

• cipher — n. code 1) to break, solve a cipher 2) in cipher * * * [ saɪfə] solve a cipher [ code ] to break in cipher …   Combinatory dictionary

• cipher — [n] zero; nothingness blank, diddly squat*, goose egg*, insignificancy, nada*, naught, nil, nobody, nonentity, nothing, nought, nullity, squat, zilch, zip, zippo*, zot*; concepts 668,787 cipher [v] figure out code break, calculate, clear up,… …   New thesaurus

• Cipher security summary — This article summarizes publicly known attacks against ciphers. Note that not all entries may be up to date. Table color key No known successful attacks Theoretical break Attack demonstrated in practice The Best attack column lists the complexity …   Wikipedia

• break — I. verb (broke; broken; breaking) Etymology: Middle English breken, from Old English brecan; akin to Old High German brehhan to break, Latin frangere Date: before 12th century transitive verb 1. a. to separate into parts with suddenness or… …   New Collegiate Dictionary

• break — Synonyms and related words: abeyance, about ship, about face, abrade, abrasion, abscond, abysm, abyss, accidentality, acclimate, acclimatize, accommodate, accommodation, accustom, actuarial calculation, adapt, adaptation, adjust, adjustment,… …   Moby Thesaurus

• cipher — Synonyms and related words: Aesopian language, Babel, Greek, John Hancock, X, a nobody, a nothing, add, algebraize, allegory, alphabetic character, argot, aught, autograph, babble, binary digit, bit, break, calculate, cant, cast, character,… …   Moby Thesaurus

• Vigenère cipher — The Vigenère cipher is a method of encrypting alphabetic text by using a series of different Caesar ciphers based on the letters of a keyword. It is a simple form of polyalphabetic substitution.The Vigenère (pronEng|ˌviːdʒɪˈnɛəɹ, veedj ih nair )… …   Wikipedia

• Playfair cipher — The Playfair cipher or Playfair square is a manual symmetric encryption technique and was the first literal digraph substitution cipher. The scheme was invented in 1854 by Charles Wheatstone, but bears the name of Lord Playfair who promoted the… …   Wikipedia

• Stream cipher — The operation of the keystream generator in A5/1, a LFSR based stream cipher used to encrypt mobile phone conversations. In cryptography, a stream cipher is a symmetric key cipher where plaintext digits are combined with a pseudorandom cipher… …   Wikipedia

• Great Cipher — In the history of cryptography, the Great Cipher was a nomenclator cipher developed by the Rossignols, several generations of whom served the French Crown as cryptographers. It was excellent of its class and so was given this name; it was reputed …   Wikipedia