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Device and method for identification and authentication

  • US 9,122,860 B2
  • Filed: 06/19/2014
  • Issued: 09/01/2015
  • Est. Priority Date: 04/24/2006
  • Status: Expired
First Claim
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1. A method for generating an output code from a user device, comprising:

  • receiving, by the user device, an explicit command to generate the output code;

    generating, by the user device in response to the explicit command, the output code using a cryptographic key, wherein generating the output code comprises;

    comparing an identifier of the holder of the user device with information identifying one or more holders of the user device, the identifier uniquely identifying the holder of the user device;

    responsive to the identifier of the holder of the user device matching the information identifying one or more holders of the user device, indicating that the holder of the user device is verified; and

    responsive to the holder being verified, generating a dynamic authentication code associated with an identifier of the holder of the user device;

    wherein the dynamic authentication code comprises a session identifier, a session counter and a timestamp of a plurality of variant fields, and the dynamic authentication code is variant and unique from other dynamic authentication codes generated by the user device and has characteristics that provide an indicator of potentially fraudulent usage of the user device;

    translating the generated output code into a plurality of emulated keystrokes; and

    outputting the plurality of emulated keystrokes from the user device to an input of a client device.

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