Process to transfer information between a subscriber...

Details Process to transfer information between a subscriber... Process to transfer information between a subscriber...

H - Electricity

04

Q

H04Q 7/22 (2006.01) H04L 9/28 (2006.01) H04L 9/32 (2006.01) H04Q 7/32 (2006.01)

Patent

CA 2258221

Procédé de transfert d'information entre un module d'identification d'abonné (10) et un terminal mobile (20) constituant une station d'un système de radiocommunication, dans lequel une partie au moins des informations transférées entre ledit module et ledit terminal sont protégées par chiffrement.Tant le module d'identification d'abonné que le terminal mobile sont pourvus de moyens de chiffrement (18) employant une clé dont une partie au moins est constituée par une donnée (TIME) variable, propre au système.

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