Private web search with Tiptoe

A Henzinger, E Dauterman, H Corrigan-Gibbs… - Proceedings of the 29th …, 2023 - dl.acm.org
Tiptoe is a private web search engine that allows clients to search over hundreds of millions
of documents, while revealing no information about their search query to the search engine's …

ThorPIR: single server PIR via homomorphic thorp shuffles

B Fisch, A Lazzaretti, Z Liu… - Proceedings of the 2024 on …, 2024 - dl.acm.org
Private Information Retrieval (PIR) is a two player protocol where the client, given some
query x ε [N], interacts with the server, which holds a N-bit string DB, in order to privately …

Efficient pre-processing pir without public-key cryptography

A Ghoshal, M Zhou, E Shi - Annual International Conference on the Theory …, 2024 - Springer
Abstract Classically, Private Information Retrieval (PIR) was studied in a setting without any
pre-processing. In this setting, it is well-known that 1) public-key cryptography is necessary …

Hintless single-server private information retrieval

B Li, D Micciancio, M Raykova… - Annual International …, 2024 - Springer
We present two new constructions for private information retrieval (PIR) in the classical
setting where the clients do not need to do any preprocessing or store any database …

Simple and practical amortized sublinear private information retrieval

MH Mughees, I Sun, L Ren - Cryptology ePrint Archive, 2023 - eprint.iacr.org
Recent works in amortized sublinear PIR have demonstrated great potential. Despite the
inspiring progress, existing schemes in this new paradigm are still faced with various …

Computationally secure aggregation and private information retrieval in the shuffle model

A Gascón, Y Ishai, M Kelkar, B Li, Y Ma… - Proceedings of the 2024 …, 2024 - dl.acm.org
The shuffle model has recently emerged as a popular setting for differential privacy, where
clients can communicate with a central server using anonymous channels or an …

Simple and Practical Amortized Sublinear Private Information Retrieval using Dummy Subsets

L Ren, MH Mughees, I Sun - Proceedings of the 2024 on ACM SIGSAC …, 2024 - dl.acm.org
Recent works in amortized sublinear Private Information Retrieval (PIR) have demonstrated
great potential. Despite the inspiring progress, existing schemes in this new paradigm are …

Faster FHE-Based Single-Server Private Information Retrieval

M Luo, FH Liu, H Wang - Proceedings of the 2024 on ACM SIGSAC …, 2024 - dl.acm.org
This work introduces KsPIR, a new practically efficient single-server private information
retrieval (PIR) system that outperforms the state-of-the-art Spiral (Menon and Wu, S&P 2022) …

PIR with client-side preprocessing: information-theoretic constructions and lower bounds

Y Ishai, E Shi, D Wichs - Annual International Cryptology Conference, 2024 - Springer
It is well-known that classical Private Information Retrieval (PIR) schemes without
preprocessing must suffer from linear server computation per query. Moreover, any such …

Single server pir via homomorphic thorp shuffles

B Fisch, A Lazzaretti, Z Liu… - Cryptology ePrint …, 2024 - eprint.iacr.org
Abstract Private Information Retrieval (PIR) is a two player protocol where the client, given
some query $ x\in [N] $ interacts with the server, which holds a $ N $-bit string $\textsf {DB} …