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» On Basing Private Information Retrieval on NP-Hardness
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PET
2010
Springer
15 years 8 months ago
Achieving Efficient Query Privacy for Location Based Services
Mobile smartphone users frequently need to search for nearby points of interest from a location based service, but in a way that preserves the privacy of the users' locations...
Femi G. Olumofin, Piotr K. Tysowski, Ian Goldberg,...
CCS
2011
ACM
14 years 6 months ago
Practical PIR for electronic commerce
We extend Goldberg’s multi-server information-theoretic private information retrieval (PIR) with a suite of protocols for privacypreserving e-commerce. Our first protocol adds ...
Ryan Henry, Femi G. Olumofin, Ian Goldberg
KDD
2010
ACM
300views Data Mining» more  KDD 2010»
15 years 4 months ago
Using data mining techniques to address critical information exchange needs in disaster affected public-private networks
Crisis Management and Disaster Recovery have gained immense importance in the wake of recent man and nature inflicted calamities. A critical problem in a crisis situation is how t...
Li Zheng, Chao Shen, Liang Tang, Tao Li, Steven Lu...
ASIACRYPT
2000
Springer
15 years 10 months ago
Security of Signed ElGamal Encryption
Assuming a cryptographically strong cyclic group G of prime order q and a random hash function H, we show that ElGamal encryption with an added Schnorr signature is secure against ...
Claus-Peter Schnorr, Markus Jakobsson
SAC
2006
ACM
15 years 6 months ago
Privacy-preserving demographic filtering
The use of recommender systems in e-commerce to guide customer choices presents a privacy protection problem that is twofold. We seek to protect the privacy interests of customers...
Esma Aïmeur, Gilles Brassard, José Man...