Patent ID: 8255698
Filing Date: 2012-08-28
Classification: G06F

Abstract:
1. A method of dynamically setting a security level of biometric authentication, comprising: receiving a biometric sample of a user at a biometric interface of a device as part of a biometric authentication request by the user, wherein the biometric sample is provided by the user in an attempt to access an application, and wherein the biometric sample is characterized by a match score when the biometric sample matches at least one stored template that uniquely identifies the user; detecting a presence of a historical usage override condition of a usage pattern by the user of the biometric authentication request, wherein the historical usage override condition comprises an updated false reject ratio (FRR) for the last N matches of a plurality of biometric samples supplied by the user; detecting a presence of a generic usage override condition comprising at least one of a location based condition, a time of day condition, a humidity condition, an ambient light condition, a temperature condition, or a user motion of usage of the device, updating a context usage factor based upon the historical usage override condition and the generic usage override condition; calculating a biometric recognition threshold required for the user to access the application based on the updated context usage factor, wherein the biometric recognition threshold determines a threshold security level required for biometric authentication; comparing the biometric sample of the user received at the biometric interface with at least one stored template that uniquely identifies the user and generating the match score when the biometric sample matches the at least one stored template; comparing the match score to the biometric recognition threshold to generate match score comparison results, and calculating the updated FRR; and permitting the user to access the application when the match score comparison results indicate that the match score is at least equal to the biometric recognition threshold and the updated FRR is less than a FRR threshold value of the application.