Importance

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Abstract

A method for challenge-based authentication of a communication entity to an access network. The access network uses a password-based communication protocol. The method comprises a) pre-supplying to the communication entity a challenge, thereby allowing the communication entity to provide a challenge response, b) supplying to the communication entity a password request, c) receiving the challenge response via the password request, and d) authenticating the communication entity if the challenge response is correct. Presupplying may be during a previous IP session, wherein communication entities are simply given challenges for next time they connect to the hotspot. Alternatively presupplying could be during a brief probationary connection that the access network gives to its users.

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First Claim