"On biometrics, coding and information theory"

Biometrics can be used as an alternative for passwords. The field is very interesting for engineers from all different disciplines. Signal processing and communication theory play an important role in the development of reliable systems.  One of the problems to be solved is the translation from a biometric to a stable discrete variable.  Another problem is that of noisy biometrics, which rule out hashing functions. We introduce the concept and discuss relations with coding and information theory.