SYSTEMS AND METHODS FOR ACTIVE AUTHENTICATION

摘要

Systems, methods, and/or techniques for performing active authentication on a device during a session with a user may be provided to detect an imposter. To perform active authentication, meta-recognition may be performed. For example, an ensemble method to facilitate detection of the imposter. The ensemble method may user discrimination using random boost and/or intrusion or change detection using transduction. Scores and/or results may be received from the ensemble method. A determination may be made, based on the scores and/or results, whether to continue to enable access to the device, whether to invoke collaborative filtering and/or challenge-responses for additional information, and/or whether to lock the device. Based on the determination, user profile adaptation on a user profile used in the ensemble method and/or the determination and/or retrain the ensemble method, collaborative filtering and/or challenge-responses, and/or a lock procedure may be performed.

主权项

1. A method for performing active authentication on a device to detect an imposter,
the method comprising:
comparing a profile generated for a session of a user currently using the device with user profiles associated with a legitimate user and a generic profile associated in a general population;computing, based on the comparison, scores for the legitimate user profile and the generic profile based on their similarity to the profile for the session of the user currently using the device;determining, based on the scores, whether to continue to enable access to the device, whether to invoke collaborative filtering or challenge-responses for additional information, or whether to lock the device; andproviding access to the device when, based on the determination, a highest score or result of the scores or results is associated with one of the user profiles for the legitimate user and exceeds a threshold of scores.