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Context sensitive dynamic authentication in a cryptographic system

  • US 9,300,649 B2
  • Filed: 04/18/2014
  • Issued: 03/29/2016
  • Est. Priority Date: 09/20/1999
  • Status: Expired due to Term
First Claim
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1. A method of performing graded authentication of a user wherein the method obtains and evaluates circumstantial data associated with an authentication attempt, the method comprising:

  • obtaining user data from a user during an authentication attempt;

    obtaining circumstantial data associated with the authentication attempt; and

    determining a level of trust associated with the authentication attempt based on the comparison of the circumstantial data with previously stored data.

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