Applications of coding and information theory in biometrics

We discuss the protection of biometric templates and password generation. We first introduce the Juels-Wattenberg approach and concentrate on the respective connection between biometrics, coding techniques and information theory. We describe the equivalent wiretap representation and use the equivalence to consider two new situations for the wiretap channel. A brief review of two other schemes, the Juels-Sudan scheme, based on Reed-Solomon codes, and the Dodis scheme based on permutations and equal weight codes is given and performance is compared with the Juels-Wattenberg scheme.