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periodic substitution cipher

См. также в других словарях:

  • Cryptanalysis — Close up of the rotors in a Fialka cipher machine Cryptanalysis (from the Greek kryptós, hidden , and analýein, to loosen or to untie ) is the study of methods for obtaining the meaning of encrypted information, without access to the secret… …   Wikipedia

  • Code (cryptography) — For other uses, see Code (disambiguation). In cryptography, a code is a method used to transform a message into an obscured form, preventing those who do not possess special information, or key, required to apply the transform from understanding… …   Wikipedia

  • шифр периодической многоалфавитной замены — — [[http://www.rfcmd.ru/glossword/1.8/index.php?a=index d=23]] Тематики защита информации EN periodic polyalphabetic substitution cipher …   Справочник технического переводчика

  • Cryptogram — For other uses, see Cryptogram (disambiguation). Not to be confused with cryptogam, the plants which reproduce by using spores. Example cryptogram. A cryptogram is a type of puzzle which consists of a short piece of encrypted text. Generally the… …   Wikipedia

  • Giovan Battista Bellaso — (Brescia 1505–...) was an Italian cryptologist.BiographyBellaso was born of a distinguished family in 1505. His father was Piervincenzo, a patrician of Brescia, owner since the 15th century of a house in town and a suburban estate in Capriano, in …   Wikipedia

  • Military Cryptanalytics — (or MILCRYP as it is sometimes known) is a revision by Lambros D. Callimahos of the series of books written by William F. Friedman under the title Military Cryptanalysis. It also contains contributions by other cryptanalysts. It was a training… …   Wikipedia

  • Matrix (mathematics) — Specific elements of a matrix are often denoted by a variable with two subscripts. For instance, a2,1 represents the element at the second row and first column of a matrix A. In mathematics, a matrix (plural matrices, or less commonly matrixes)… …   Wikipedia

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