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In cryptography, Madryga is a block cipher published in 1984 by W. E. Madryga. It was designed to be easy and efficient for implementation in software. Serious weaknesses have since been found in the algorithm, but it was one of the first encryption algorithms to make use of data-dependent rotations, later used in other ciphers, such as RC5 and RC6. In his proposal, Madryga set forth twelve design objectives that are generally considered to be good goals in the design of a block cipher. DES had already fulfilled nine of them. The three that DES did not fulfill were:

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  • Madryga (en)
  • Madryga (fr)
  • Madryga (pl)
  • MADRYGA (ru)
  • MADRYGA (uk)
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  • Madryga (również Algorytm Madrygi) – szyfr blokowy stworzony w 1984 przez W. E. Madrygę, zaprojektowany tak, aby był wygodny w implementacji programowej. (pl)
  • MADRYGA (в честь автора W. E. Madryga) — блочный алгоритм шифрования, созданный В. Е. Мадрига в 1984 году. (ru)
  • MADRYGA (в честь автора W. E. Madryga) — блочний алгоритм шифрування, створений англ. W. E. Madryga в 1984 році. (uk)
  • In cryptography, Madryga is a block cipher published in 1984 by W. E. Madryga. It was designed to be easy and efficient for implementation in software. Serious weaknesses have since been found in the algorithm, but it was one of the first encryption algorithms to make use of data-dependent rotations, later used in other ciphers, such as RC5 and RC6. In his proposal, Madryga set forth twelve design objectives that are generally considered to be good goals in the design of a block cipher. DES had already fulfilled nine of them. The three that DES did not fulfill were: (en)
  • Madryga est un algorithme de chiffrement par bloc conçu en 1984 par W. E. Madryga. Destiné à une implémentation logicielle efficace et simple à mettre en œuvre, l'algorithme souffre cependant d'importantes faiblesses. Il a toutefois posé les bases algorithmiques et mathématiques concernant les rotations dépendantes des données. Celles-ci seront reprises dans d'autres chiffrements comme RC5 et RC6. (fr)
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  • In cryptography, Madryga is a block cipher published in 1984 by W. E. Madryga. It was designed to be easy and efficient for implementation in software. Serious weaknesses have since been found in the algorithm, but it was one of the first encryption algorithms to make use of data-dependent rotations, later used in other ciphers, such as RC5 and RC6. In his proposal, Madryga set forth twelve design objectives that are generally considered to be good goals in the design of a block cipher. DES had already fulfilled nine of them. The three that DES did not fulfill were: 1. * Any possible key should produce a strong cipher. (Meaning no weak keys, which DES has.) 2. * The length of the key and the text should be adjustable to meet varying security requirements. 3. * The algorithm should be efficiently implementable in software on large mainframes, minicomputers, and microcomputers, and in discrete logic. (DES has a large amount of bitwise permutations, which are inefficient in software implementations.) (en)
  • Madryga est un algorithme de chiffrement par bloc conçu en 1984 par W. E. Madryga. Destiné à une implémentation logicielle efficace et simple à mettre en œuvre, l'algorithme souffre cependant d'importantes faiblesses. Il a toutefois posé les bases algorithmiques et mathématiques concernant les rotations dépendantes des données. Celles-ci seront reprises dans d'autres chiffrements comme RC5 et RC6. Dans sa proposition, Madryga met en avant 12 objectifs qui doivent être considérés lors de la réalisation d'un bon chiffrement par bloc. DES remplissait 9 d'entre eux. Les 3 critères restants étaient : 1. * toute clé doit produire un chiffrement robuste (ie. pas de clés faibles) 2. * la longueur de la clé et du texte doivent être ajustables selon la sécurité désirée 3. * l'algorithme doit pouvoir être implémenté facilement sur les ordinateurs et la logique discrète (DES utilise des opérations sur les bits comme les permutations qui sont très inefficaces dans une implémentation logicielle). (fr)
  • Madryga (również Algorytm Madrygi) – szyfr blokowy stworzony w 1984 przez W. E. Madrygę, zaprojektowany tak, aby był wygodny w implementacji programowej. (pl)
  • MADRYGA (в честь автора W. E. Madryga) — блочный алгоритм шифрования, созданный В. Е. Мадрига в 1984 году. (ru)
  • MADRYGA (в честь автора W. E. Madryga) — блочний алгоритм шифрування, створений англ. W. E. Madryga в 1984 році. (uk)
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