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Performing authentication in a communications system

  • US 20040229597A1
  • Filed: 05/15/2003
  • Published: 11/18/2004
  • Est. Priority Date: 05/15/2003
  • Status: Active Grant
First Claim
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1. A method for authentication in a communications system, the method comprising:

  • receiving a request for authentication from a server, the request for authentication including a first and a second random challenge;

    comparing the first random challenge and the second random challenge;

    denying the request for authentication in response to determining that the first random challenge is substantially the same as the second random challenge; and

    transmitting an encoded value to the server in response to determining that the first random challenge is different from the second random challenge, wherein the encoded value is generated based on the first and second random challenge and a key that is not shared with the server.

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