An anonymous authentication and key agreement protocol with session-preserving cross-domain handover using PUF and biometrics

Researchers have developed a new authentication and key agreement protocol (a method for securely verifying users and establishing encrypted connections) that combines PUF (physical unclonable functions, unique hardware fingerprints that cannot be copied) and biometrics (biological traits like fingerprints) to allow users to maintain secure sessions while moving between different systems or networks. The protocol is designed to preserve anonymity while enabling seamless handover across domains (separate security zones or organizations).