oBAKE: an Online Biometric-Authenticated Key Exchange Protocol

arXiv:2406.05134v1 Announce Type: new
Abstract: In this writing, we introduce a novel biometric-authenticated key exchange protocol that allows secure and privacy-preserving key establishment between a stateless biometric sensing system and a "smart" user token that possesses biometric templates of the user.
The protocol yields a shared secret incorporating random nonce from both parties when they positively authenticate each other. Mutual positive authentication here is defined as when the feature vector calculated from the sensor data captured by the biometric sensing …

arxiv biometric cs.cr exchange key nonce novel parties privacy protocol random secret sensing shared smart stateless system templates token writing