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Identity verification via selection of sensible output from recorded digital data

  • US 8,726,355 B2
  • Filed: 06/24/2009
  • Issued: 05/13/2014
  • Est. Priority Date: 06/24/2008
  • Status: Active Grant
First Claim
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1. A method comprising:

  • sampling digital data according to a sampling function operating on a computer from a data stream used for generating sensible output during a first session between at least two network nodes initiated under a defined user account, wherein the first session is conducted for a primary purpose other than image recognition training;

    storing the sampled digital data on a computer-readable medium in association with an identifier for the user account under which the first session is initiated;

    transmitting the sampled digital data and decoy digital data configured for generating discrete sensible outputs to a client for use in an authentication session for a subsequent session under the user account;

    authenticating access for the subsequent session in response to receiving input from the client indicating selection of sensible output generated from the sampled digital data from a challenge matrix comprising the sensible output generated from the sampled digital data and the decoy digital data.

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