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Authentication method, system, server, and client

  • US 8,245,048 B2
  • Filed: 10/11/2011
  • Issued: 08/14/2012
  • Est. Priority Date: 11/08/2007
  • Status: Active Grant
First Claim
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1. An authentication method based on the Data Synchronization (DS) protocol, comprising:

  • receiving, by a client device, a trigger message sent from a server, wherein the trigger message includes;

    a session ID identifying a session to be triggered, and a first digest;

    authenticating, by the client device, the first digest of the trigger message using a server nonce stored in the client device;

    re-authenticating, by the client device, the first digest of the trigger message using the session ID if the authentication fails; and

    sending, by the client device, a session request, wherein the session request includes the session ID and a second digest generated using a client nonce, to the server.

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