- block substitution
- поблочная подстановка
Англо-русский словарь по компьютерной безопасности. Академик.ру. 2011.
block substitution
Смотреть что такое "block substitution" в других словарях:
Substitution matrix — In evolutionary biology, a substitution matrix describes the rate at which one character in a sequence changes to other character states over time. Substitution matrices are usually seen in the context of amino acid or DNA sequence alignments,… … Wikipedia
Substitution cipher — In cryptography, a substitution cipher is a method of encryption by which units of plaintext are replaced with ciphertext according to a regular system; the units may be single letters (the most common), pairs of letters, triplets of letters,… … Wikipedia
Block cipher — In cryptography, a block cipher is a symmetric key cipher operating on fixed length groups of bits, called blocks, with an unvarying transformation. A block cipher encryption algorithm might take (for example) a 128 bit block of plaintext as… … Wikipedia
Substitution box — In cryptography, a substitution box (or S box) is a basic component of symmetric key algorithms. In block ciphers, they are typically used to obscure the relationship between the plaintext and the ciphertext mdash; Shannon s property of confusion … Wikipedia
Substitution-permutation network — In cryptography, an SP network, or substitution permutation network (SPN), is a series of linked mathematical operations used in block cipher algorithms such as AES.These networks consist of S boxes and P boxes that transform blocks of input bits … Wikipedia
Polygraphic substitution — A polygraphic substitution is a cipher in which a uniform substitution is performed on blocks of letters. When the length of the block is specifically known, more precise terms are used: for instance, a cipher in which pairs of letters are… … Wikipedia
Unicode-Block Zusätzliche Interpunktion — Der Unicode Block Supplemental Punctuation (Zusätzliche Interpunktion) (2E00–2E7F) enthält weitere Interpunktionszeichen, die nicht im Unicode Block Allgemeine Interpunktion (General Punctuation, 2000–206F) enthalten sind. In erster Linie handelt … Deutsch Wikipedia
ABC (block cipher) — Infobox block cipher name = ABC designers = Dieter Schmidt publish date = May 27 2002 derived from = MMB, SAFER derived to = related to = certification = key size = 512 bits block size = 256 bits structure = Substitution permutation network… … Wikipedia
GOST (block cipher) — Infobox block cipher name = GOST 28147 89 caption = Diagram of GOST designers = USSR publish date = 1994 (declassified) derived from = derived to = key size = 256 bits block size = 64 bits structure = Feistel network rounds = 32 cryptanalysis =… … Wikipedia
Cipher Block Chaining — Mode d opération (cryptographie) En cryptographie, un mode d opération est la manière de traiter les blocs de texte clairs et chiffrés au sein d un algorithme de chiffrement par bloc. Chacun des modes possède ses propres atouts. Plusieurs modes… … Wikipédia en Français
BLOSUM — block substitution matrix [searching algorithm] … Medical dictionary
