A Survey of the Security and Privacy Measures for Anonymous Biometric Authentication Systems

The challenge in applying the known information theoretical measures for biometric authentication systems is that on one hand these measures are defined in a specific context and on the other hand there are several constructions known for the protection of biometric information. The goal of this work is to organize and conceptualize the existing knowledge in the area of security of biometrics and build a bridge between the formal model of cryptography and the practical view of the signal processing area. It is the scope of this paper to build and present the framework where results from both cryptography and signal processing can be integrated.