Sciweavers

PET
2012
Springer
11 years 7 months ago
PRISM - Privacy-Preserving Search in MapReduce
We present PRISM, a privacy-preserving scheme for word search in cloud computing. In the face of a curious cloud provider, the main challenge is to design a scheme that achieves pr...
Erik-Oliver Blass, Roberto Di Pietro, Refik Molva,...
CCS
2011
ACM
12 years 4 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
CC
2006
Springer
125views System Software» more  CC 2006»
13 years 4 months ago
A tight lower bound for restricted pir protocols
We show that any 1-round 2-server Private Information Retrieval Protocol where the answers are 1-bit long must ask questions that are at least n - 2 bits long, which is nearly equa...
Richard Beigel, Lance Fortnow, William I. Gasarch
PKC
2010
Springer
126views Cryptology» more  PKC 2010»
13 years 8 months ago
Multi-query Computationally-Private Information Retrieval with Constant Communication Rate
A fundamental privacy problem in the client-server setting is the retrieval of a record from a database maintained by a server so that the computationally bounded server remains ob...
Jens Groth, Aggelos Kiayias, Helger Lipmaa
PET
2010
Springer
13 years 8 months ago
Privacy-Preserving Queries over Relational Databases
We explore how Private Information Retrieval (PIR) can help users keep their sensitive information from being leaked in an SQL query. We show how to retrieve data from a relational...
Femi G. Olumofin, Ian Goldberg
CCS
2010
ACM
13 years 8 months ago
Controlling data disclosure in computational PIR protocols
Private Information Retrieval (PIR) protocols allow users to learn data items stored at a server which is not fully trusted, without disclosing to the server the particular data e...
Ning Shang, Gabriel Ghinita, Yongbin Zhou, Elisa B...
CRYPTO
2000
Springer
157views Cryptology» more  CRYPTO 2000»
13 years 9 months ago
Reducing the Servers Computation in Private Information Retrieval: PIR with Preprocessing
Private information retrieval (PIR) enables a user to retrieve a data item from a database, replicated among one or more servers, while hiding the identity of the retrieved item. ...
Amos Beimel, Yuval Ishai, Tal Malkin
GI
2001
Springer
13 years 9 months ago
Private Information Retrieval
In e-commerce, the protection of user privacy from a server was not considered feasible until the private information retrieval (PIR) problem was stated recently. A PIR protocol a...
Dmitri Asonov
EUROCRYPT
2004
Springer
13 years 10 months ago
On the Hardness of Information-Theoretic Multiparty Computation
We revisit the following open problem in information-theoretic cryptography: Does the communication complexity of unconditionally secure computation depend on the computational com...
Yuval Ishai, Eyal Kushilevitz
NDSS
2008
IEEE
13 years 11 months ago
Analysis-Resistant Malware
Traditionally, techniques for computing on encrypted data have been proposed with privacy preserving applications in mind. Several current cryptosystems support a homomorphic oper...
John Bethencourt, Dawn Song, Brent Waters