statistical cryptanalysis

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• Cryptanalysis of the Enigma — enabled the western Allies in World War II to read substantial amounts of secret Morse coded radio communications of the Axis powers that had been enciphered using Enigma machines. This yielded military intelligence which, along with that from… …   Wikipedia

• Cryptanalysis of the Lorenz cipher — The Lorenz SZ machines had 12 wheels each with a different number of cams (or pins). Wheel number 1 2 3 4 5 6 7 …   Wikipedia

• Differential cryptanalysis — is a general form of cryptanalysis applicable primarily to block ciphers, but also to stream ciphers and cryptographic hash functions. In the broadest sense, it is the study of how differences in an input can affect the resultant difference at… …   Wikipedia

• Contact analysis (cryptanalysis) — In cryptanalysis, contact analysis is the study of the frequency with which certain symbols precede or follow other symbols. The method is used as an aid to breaking classical ciphers. Contact analysis is based on the fact that, in any sample of… …   Wikipedia

• Davies' attack — In cryptography, Davies attack [sic] is a dedicated statistical cryptanalysis method for attacking the Data Encryption Standard (DES). The attack was originally created in 1987 by Donald Davies. In 1994, Eli Biham and Alex Biryukov made… …   Wikipedia

• Cryptanalyse Χ² — Méthode de cryptanalyse statistique inventée par Serge Vaudenay et basée sur le test du χ². Elle est plus efficace que la cryptanalyse différentielle pour le même nombre de paires de messages en clair et chiffré. La cryptanalyse χ² permet de s… …   Wikipédia en Français

• Cryptanalyse χ² — Méthode de cryptanalyse statistique inventée par Serge Vaudenay et basée sur le test du χ². Elle est plus efficace que la cryptanalyse différentielle pour le même nombre de paires de messages en clair et chiffré. La cryptanalyse χ² permet de s… …   Wikipédia en Français

• cryptology — cryptologist, n. cryptologic /krip tl oj ik/, cryptological, adj. /krip tol euh jee/, n. 1. cryptography. 2. the science and study of cryptanalysis and cryptography. [1635 45; < NL cryptologia. See CRYPTO , LOGY] * * * Introduction …   Universalium

• History of cryptography — The history of cryptography begins thousands of years ago. Until recent decades, it has been the story of what might be called classic cryptography that is, of methods of encryption that use pen and paper, or perhaps simple mechanical aids. In… …   Wikipedia

• FEAL — Infobox block cipher name = FEAL caption = The FEAL Feistel function designers = Akihiro Shimizu and Shoji Miyaguchi (NTT) publish date = FEAL 4 in 1987; FEAL N/NX in 1990 derived from = derived to = key size = 64 bits (FEAL), 128 bits (FEAL NX)… …   Wikipedia

• One-time pad — Excerpt from a one time pad In cryptography, the one time pad (OTP) is a type of encryption, which has been proven to be impossible to crack if used correctly. Each bit or character from the plaintext is encrypted by a modular addition with a bit …   Wikipedia