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System and method for controlling access to multiple public networks and for controlling access to multiple private networks

  • US 7,334,255 B2
  • Filed: 09/29/2003
  • Issued: 02/19/2008
  • Est. Priority Date: 09/30/2002
  • Status: Expired due to Fees
First Claim
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1. A method for controlling access to a network, the method comprising the following steps:

  • (a) coupling a user device to a network;

    (b) transmitting a first response including a particular secret of at least two secrets stored in the user device to the network;

    (c) generating a second response including the particular secret upon receipt of the first response by the network;

    (d) comparing the first response and second response; and

    (e) authenticating the user device if the first response and second response match, and not authenticating the user device if the first response and second do not match.

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