Title :
A New Protocol to Evaluate the Resistance of Template Update Systems against Zero-Effort Attacks
Author :
Giot, Romain ; Rosenberger, C. ; Dorizzi, Bernadette
Abstract :
Since several years, there is a high interest in the creation of template update mechanisms in biometrics. By automatically updating over time the biometric reference of an individual, these update systems aim at avoiding a performance decreases over time. However, update errors occur when impostor samples are included in the biometric reference. In this paper, we are interested in analysing the behavior of template update against zero effort attacks depending on the difficulty of these attacks which is parametrized by the ratio of impostors samples included. We propose a protocol, which allows to evaluate an update mechanism under such kind of attacks by preserving an important amount of genuine samples, even when the ratio of impostor samples is important. Then, we apply this protocol on an existing template update system from the state of the art at various attack rates in order to assess its benefits.
Keywords :
authorisation; biometrics (access control); cryptographic protocols; biometric reference; impostor sample ratio; template update behavior analysis; template update system resistance evaluation; update errors; zero-effort attacks; Authentication; Biometrics (access control); Conferences; Error analysis; Keyboards; Presses; Protocols; biometric authentication; keystroke dynamics; template update; zero effort attack;
Conference_Titel :
Computer Vision and Pattern Recognition Workshops (CVPRW), 2013 IEEE Conference on
Conference_Location :
Portland, OR
DOI :
10.1109/CVPRW.2013.27