Privacy Compliant Multi-biometric Authentication on Smartphones

Smartphones are more and more used by Internet users for different services such as social networks, e-commerce or email. User authentication with passwords on such devices is not user-friendly and does not offer a high security level for this task. Biometrics is becoming one popular solution to achieve this goal with the embedding of fingerprint scanners in smartphones. In this paper, we propose a new protocol combining fingerprint and behavioral biometrics to enhance the security of user authentication while preserving usability and privacy. The behavior when entering a pattern based authentication on the smartphone touch screen is considered as a fast and usable solution for users. We think the proposed multi-biometric solution offers great advantages for many applications such as e-payment in terms of security, usability and privacy. We show through experimental results the efficiency of the proposed method.