Authors
Mingxun Zhou, Wei-Kai Lin, Yiannis Tselekounis, Elaine Shi
Publication date
2023/4/16
Book
Annual International Conference on the Theory and Applications of Cryptographic Techniques
Pages
395-425
Publisher
Springer Nature Switzerland
Description
We construct a single-server pre-processing Private Information Retrieval (PIR) scheme with optimal bandwidth and server computation (up to poly-logarithmic factors), assuming hardness of the Learning With Errors (LWE) problem. Our scheme achieves amortized server and client computation and bandwidth per query, completes in a single roundtrip, and requires client storage. In particular, we achieve a significant reduction in bandwidth over the state-of-the-art scheme by Corrigan-Gibbs, Henzinger, and Kogan (Eurocrypt’22): their scheme requires as much as bandwidth per query, with comparable computational and storage overhead as ours.
Total citations
Scholar articles
M Zhou, WK Lin, Y Tselekounis, E Shi - Annual International Conference on the Theory and …, 2023