An Experimental Evaluation of a Privacy-Preserving Authentication and Authorization Scheme*

We conduct an experimental evaluation of a Privacy-Preserving Authentication and Authorization Scheme based on an earlier work. The scheme is flexible in its design and allows itself to be incorporated into various biometrics-based authentication systems. In this study we use face images as biometrics data in the authentication system but protect system users' privacy by utilizing the scheme's Biometric-Capsule based security mechanism. We also employ additional state-of-the-art deep-learning based face recognition methods to help achieve high accuracy of the system.