Resilient password management system using an array of addressable physical unclonable functions

Systems and methods for improving security in computer-based authentication systems by using physical unclonable functions are presented. A computing device used to provide authentication includes multiple arrays of physical unclonable function devices. Rather than storing user passwords or message digests of passwords, the computing device generates a message digest based on a user's credentials. A challenge response generated by measuring physical parameters of set of physical unclonable function devices specified by the message digest. The computing device can provide authentication without storing information which could be used by an attacker to compromise user credentials. Redundancy and robustness to varying loads are provided by the use of multiple PUF arrays which may be used as backups or to provide load balancing. Backdoor access may be provided to trusted parties without exposing user credentials.