TY - GEN
T1 - When the hammer meets the nail
T2 - 2017 IEEE Conference on Communications and Network Security, CNS 2017
AU - Grissa, Mohamed
AU - Yavuz, Attila A.
AU - Hamdaoui, Bechir
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/19
Y1 - 2017/12/19
N2 - We show that it is possible to achieve information theoretic location privacy for secondary users (SUs) in database-driven cognitive radio networks (CRNs) with an end-to-end delay less than a second, which is significantly better than that of the existing alternatives offering only a computational privacy. This is achieved based on a keen observation that, by the requirement of Federal Communications Commission (FCC), all certified spectrum databases synchronize their records. Hence, the same copy of spectrum database is available through multiple (distinct) providers. We harness the synergy between multi-server private information retrieval (PIR) and database-driven CRN architecture to offer an optimal level of privacy with high efficiency by exploiting this observation. We demonstrated, analytically and experimentally with deployments on actual cloud systems that, our adaptations of multi-server PIR outperform that of the (currently) fastest single-server PIR by a magnitude of times with information theoretic security, collusion resiliency and fault-tolerance features. Our analysis indicates that multiserver PIR is an ideal cryptographic tool to provide location privacy in database-driven CRNs, in which the requirement of replicated databases is a natural part of the system architecture, and therefore SUs can enjoy all advantages of multi-server PIR without any additional architectural and deployment costs.
AB - We show that it is possible to achieve information theoretic location privacy for secondary users (SUs) in database-driven cognitive radio networks (CRNs) with an end-to-end delay less than a second, which is significantly better than that of the existing alternatives offering only a computational privacy. This is achieved based on a keen observation that, by the requirement of Federal Communications Commission (FCC), all certified spectrum databases synchronize their records. Hence, the same copy of spectrum database is available through multiple (distinct) providers. We harness the synergy between multi-server private information retrieval (PIR) and database-driven CRN architecture to offer an optimal level of privacy with high efficiency by exploiting this observation. We demonstrated, analytically and experimentally with deployments on actual cloud systems that, our adaptations of multi-server PIR outperform that of the (currently) fastest single-server PIR by a magnitude of times with information theoretic security, collusion resiliency and fault-tolerance features. Our analysis indicates that multiserver PIR is an ideal cryptographic tool to provide location privacy in database-driven CRNs, in which the requirement of replicated databases is a natural part of the system architecture, and therefore SUs can enjoy all advantages of multi-server PIR without any additional architectural and deployment costs.
KW - Database-driven cognitive radio networks
KW - dynamic spectrum access
KW - location privacy
KW - private information retrieval
UR - http://www.scopus.com/inward/record.url?scp=85046552756&partnerID=8YFLogxK
U2 - 10.1109/CNS.2017.8228646
DO - 10.1109/CNS.2017.8228646
M3 - Conference contribution
AN - SCOPUS:85046552756
T3 - 2017 IEEE Conference on Communications and Network Security, CNS 2017
SP - 1
EP - 9
BT - 2017 IEEE Conference on Communications and Network Security, CNS 2017
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 9 October 2017 through 11 October 2017
ER -