Method and apparatus for uniquely encrypting a plurality of...

Details Method and apparatus for uniquely encrypting a plurality of... Method and apparatus for uniquely encrypting a plurality of...

H - Electricity

04

L

H04L 9/06 (2006.01) H04B 7/204 (2006.01) H04L 9/08 (2006.01) H04H 1/00 (2006.01) H04N 7/16 (2006.01) H04N 7/167 (2006.01)

Patent

CA 2168748

The encryption apparatus for encrypting each of a plurality of services (22) comprises a random signal generator (24), which generates a random quantity that comprises a global seed and a random seed. The encryption apparatus (22) further includes an SK memory (52), a seed encryptor (50), seed generators (38, 40, 42), service encryptors (26, 28, 30), a multiplexer (54), spreading function generators, and a transmitter (56).

L'appareil de chiffrement destiné à chiffrer chaque service parmi une pluralité de services (22), comprend un générateur (24) de signal aléatoire générant une quantité aléatoire comprenant une valeur de départ globale et une valeur de départ aléatoire. L'appareil de chiffrement (22) comprend, de plus, une mémoire SK (52), une unité (50) de chiffrement de valeur de départ, des générateurs (38, 40, 42) de valeurs de départ, des unités (26, 28, 30) de chiffrement de services, un multiplexeur (54), des générateurs de fonctions de déploiement et un émetteur (56).

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