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Distributed single sign on technologies including privacy protection and proactive updating

  • US 9,118,463 B2
  • Filed: 02/29/2012
  • Issued: 08/25/2015
  • Est. Priority Date: 11/24/2008
  • Status: Active Grant
First Claim
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1. A method comprising:

  • sending, by a computing device, a request for access;

    receiving, by the computing device in response to the sent request, a list of t authentication devices, a unique service identifier, and a value;

    sending, by the computing device for each j where 1<

    j≦

    t, data comprising a user identifier of a user, the unique service identifier, the value, and a random number;

    receiving, by the computing device in response to the sent data for each j, a partial authentication token based on the sent user identifier, the sent unique service identifier, the sent value, and the sent random number;

    computing, by the computing device, an authentication token based on j of the received partial authentication tokens, where 1≦

    j≦

    t;

    sending, by the computing device, the authentication token;

    receiving, by the computing device in response to the sent authentication token, the requested access.

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