Methods, apparatuses and software for authentication of...

H - Electricity – 04 – L

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H04L 29/06 (2006.01)

Patent

CA 2644772

A process is provided in which a first device, e.g. a hub device (2) of a home network (1), is temporarily provided with a SIM (20) to store a challenge-response, and thereafter the first device (2) uses the stored challenge-response to interrogate a second device e.g. a mobile telephone (2), to authenticate that the second device (12) now has the SIM (20) that the first device (2) was previously provided with. A further process is provided in which the second device (12) authenticates that the first device (2) previously had access to the SIM (20) by verifying that a response from one or more challenge-response pairs provided by the first device (2) to the second device (12) is the same as a response received by the second device (12) from the SIM (20) when the second device (12) interrogates the SIM (20) with the challenge of the challenge-response pair received earlier from the first device (2).

La présente invention concerne un procédé selon lequel un premier dispositif, par ex. un dispositif concentrateur (2) d'un réseau de rattachement (1), est temporairement pourvu d'un module SIM (20) pour enregistrer une question-réponse, puis utilise ultérieurement la question-réponse enregistrée pour interroger un second dispositif, par ex. un téléphone mobile (2), afin d'authentifier le fait que le deuxième dispositif (12) est désormais pourvu du module SIM (20) précédemment utilisé par le premier dispositif (2). Cette invention concerne également un autre procédé selon lequel le deuxième dispositif (12) authentifie le fait que le premier dispositif (2) a accédé précédemment au module SIM (20) en vérifiant qu'une réponse provenant d'une ou de plusieurs paires question-réponse fournies par le premier dispositif (2) au deuxième dispositif (12) est identique à la réponse reçue du module SIM (20) par le deuxième dispositif (12) lorsque le deuxième dispositif (12) interroge le module SIM (20) avec la question de la paire question-réponse reçue auparavant en provenance du premier dispositif (2).

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