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Mapping biometrics to a unique key

  • US 9,165,130 B2
  • Filed: 11/21/2012
  • Issued: 10/20/2015
  • Est. Priority Date: 11/21/2012
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • enrolling an initial biometric sample of a user with an authentication application at a server;

    receiving a user-specific database from the server and storing the user-specific database at a computing device of the user, the user-specific database is created specifically for the user in response to the enrolling and comprises biometric templates for a number N users, including biometric templates of other users and a biometric template of the user which is based on the initial biometric sample of the user, wherein the biometric template of the user is randomly positioned within the user-specific database, and the user-specific database is created in response to the enrolling as a proper subset of biometric templates of a number M users in a generic database, where N is less than M, and the user-specific database comprises a respective data value associated with each of the biometric templates for the N users, and each respective data value in the user-specific database is unique;

    after the enrolling, receiving a subsequent biometric sample of a user at the computing device;

    comparing the subsequent biometric sample to a plurality of biometric templates among the biometric templates in the user-specific database;

    responsive to the comparing, selecting one of the biometric templates in the user-specific database as a best match to the subsequent biometric sample, one of the respective data values is associated with the one of the biometric templates; and

    authenticating the user using the one of the respective data values as one factor.

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