Multiparty Distributed Point Functions

Aarushi Goel; Mingyuan Wang; Zhiheng Wang

Paper 2025/1074

Multiparty Distributed Point Functions

Aarushi Goel

, Purdue University West Lafayette

Mingyuan Wang

, New York University Shanghai

Zhiheng Wang, Shanghai Jiao Tong University

Abstract

We present the first construction of multiparty distributed point functions based on one-way functions, where the share sizes remain sublinear in the domain size and grow {\em only polynomially} with the number of parties. In contrast, existing multiparty distributed point function constructions in Minicrypt have share sizes that grow {\em exponentially} with the number of parties.

Metadata

Available format(s): PDF
Category: Cryptographic protocols
Publication info: Published by the IACR in CRYPTO 2025
Contact author(s): aarushi @ purdue edu
mingyuan wang @ nyu edu
serpentg @ sjtu edu cn
History: 2025-06-09: approved; 2025-06-09: received; See all versions
Short URL: https://ia.cr/2025/1074
License: CC BY

BibTeX

@misc{cryptoeprint:2025/1074,
      author = {Aarushi Goel and Mingyuan Wang and Zhiheng Wang},
      title = {Multiparty Distributed Point Functions},
      howpublished = {Cryptology {ePrint} Archive, Paper 2025/1074},
      year = {2025},
      url = {https://eprint.iacr.org/2025/1074}
}