Ling Ren
, University of Illinois Urbana-Champaign
This paper presents OnionPIRv2, an efficient implementation of OnionPIR incorporating standard orthogonal techniques and engineering improvements. OnionPIR is a single-server PIR scheme that improves response size and computation cost by utilizing recent advances in somewhat homomorphic encryption (SHE) and carefully composing two lattice-based SHE schemes to control the noise growth of SHE. OnionPIRv2 achieves $3.7 \times$ response overhead for $3$ KB entries and up to $1372$ MB/s server computation throughput in our evaluation.
BibTeX
@misc{cryptoeprint:2025/1142,
author = {Yue Chen and Ling Ren},
title = {{OnionPIRv2}: Efficient Single-Server {PIR}},
howpublished = {Cryptology {ePrint} Archive, Paper 2025/1142},
year = {2025},
url = {https://eprint.iacr.org/2025/1142}
}
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