Title :
Privacy enhancement of common randomness based authentication: Key rate maximized case
Author :
Voloshynovskiy, Sviatoslav ; Koval, Oleksiy ; Holotyak, Taras ; Beekhof, Fokko
Author_Institution :
Dept. of Comput. Sci., Univ. of Geneva, Geneva, Switzerland
Abstract :
In this paper, we consider security-privacy issues in authentication techniques based on the extraction of common randomness. We demonstrate that the key rate-privacy leak pairs can be enhanced using reliable components extraction from specially designed random projections. The decrease of bit error probability is estimated and its impact on the key rate and privacy leak is evaluated. Several authentication schemes with new helper data protocol are proposed.
Keywords :
authorisation; biometrics (access control); data privacy; error statistics; authentication; bit error probability; common randomness techniques; helper data protocol; key rate-privacy leak pairs; random projections; reliable components extraction; security-privacy issues; Authentication; Biometrics; Covariance matrix; Cryptographic protocols; Cryptography; Data mining; Data privacy; Data security; Decoding; Error probability;
Conference_Titel :
Information Forensics and Security, 2009. WIFS 2009. First IEEE International Workshop on
Conference_Location :
London
Print_ISBN :
978-1-4244-5279-8
Electronic_ISBN :
978-1-4244-5280-4
DOI :
10.1109/WIFS.2009.5386478
