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Method and system for authentication

  • US 9,112,910 B2
  • Filed: 10/14/2008
  • Issued: 08/18/2015
  • Est. Priority Date: 10/14/2008
  • Status: Active Grant
First Claim
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1. A method of authenticating a communications session between two or more user communications devices over a plurality of communications channels comprising:

  • creating a first set of signatures by the first user communications device, wherein the first set of signatures comprises a unique signature for each of a plurality of communications channels;

    communicating one of said first set of signatures to a second user communications device comprising a first authentication module over one of said plurality of communications channels, wherein the first authentication module of said second user communications device retrieves a verification key from local storage and authenticates the first user communications device'"'"'s signature associated with the one of said plurality of communications channels using the retrieved verification key;

    accepting communication with the first user communications device only if the first user communications device'"'"'s signature is successfully authenticated by said first authentication module;

    communicating, only if a second of the plurality of communications channels are required, a second of said first set of signatures to the second user communications device over a second of said plurality of communications channels, wherein the first authentication module of said second user communications device retrieves a verification key from local storage and authenticates the first user communications device'"'"'s second signature using the retrieved verification key; and

    accepting communication with the first user communications device over the second communications channel only if the second signature is successfully authenticated by said first authentication module.

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