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Continuous authentication confidence module

  • US 9,160,730 B2
  • Filed: 03/15/2013
  • Issued: 10/13/2015
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. A user device comprising:

  • processor circuitry configured to determine presence data;

    a confidence factor comprising at least one of a sensor configured to capture sensor input and a system monitoring module configured to monitor operation of the user device and to collect monitor data related to the monitoring;

    memory configured to store a confidence score and an operating system; and

    a continuous authentication confidence module (CACM) configured to;

    determine the confidence score in response to an initial authentication of a specific user;

    update the confidence score based, at least in part, on at least one of an expectation of user presence and selected presence data; and

    notify at least one of the operating system and a remote communication partner that the authentication is no longer valid if the updated confidence score is within a tolerance of a session close threshold;

    wherein;

    the initial authentication configured to open a session, the confidence score configured to indicate a current strength of authentication at a point in time during the session;

    when the confidence score is at or above a confidence score power threshold, the CACM is configured to choose a type of said selected presence data based, at least in part, on a power consumption associated with obtaining said chosen type of said selected presence data; and

    determine a confidence value based, at least in part, on the chosen type of selected presence data; and

    adjust the confidence score based, at least in part, on the confidence value.

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