Device authentication

H - Electricity – 04 – L

Patent

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Details

H04L 9/32 (2006.01) H04W 12/04 (2009.01) H04W 12/06 (2009.01)

Patent

CA 2505460

Authentication of two devices in communication with a third device is achieved where the first and second devices each possess a shared secret value. The authentication includes communication of authentication values from the first device to the second device using the third device. Similarly, there is communication of values from the second device to the first device using the third device. The third device retains the communicated values. The values are calculated to permit the third device to authenticate the first and second devices without the third device receiving the shared secret value. The authentication may be used to establish a communications channel between the first and the second devices.

L'authentification de deux dispositifs en communication avec un troisième dispositif est réalisée lorsque le premier et le deuxième dispositifs possèdent chacun une valeur partagée secrète. L'authentification comprend la communication des valeurs d'authentification du premier dispositif au deuxième en utilisant le troisième dispositif. De la même façon, il y a communication des valeurs du deuxième dispositif au premier en utilisant le troisième dispositif. Le troisième dispositif conserve les valeurs communiquées. Les valeurs sont calculées pour permettre au troisième dispositif d'authentifier le premier et le deuxièmes dispositifs sans qu'il ne reçoive la valeur partagée secrète. L'authentification peut servir à établir une voie de communication entre le premier et le deuxième dispositifs.

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