Cyphering device using substitutions and permutations

G - Physics – 06 – F

Patent

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354/67

G06F 1/00 (2006.01) H04L 9/06 (2006.01)

Patent

CA 1244949

PRECIS DE LA DIVULGATION: Le dispositif de chiffrement par substitutions- permutations, apte à transformer un mot binaire en un autre mot binaire, par une suite de substitutions et de permu- tations sous la commande d'une clé, est tel que les opéra- tions de substitution sont réalisées au moyen de mémoires programmables ou reprogrammables adressées par tout ou partie du mot devant subir une substitution, et par tout ou partie de la clé ou de parties de la clé appliquées successivement. Application au chiffrement d'informations.

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