Multi-Party Private Join – Artifacts

This repository hosts the artifact for the paper "Multi-Party Private Join" by Anja Lehmann, Christian Mouchet and Andrey Sidorenko, PETS 2026. This artifact is a set of scripts and utilities to run the performance benchmarks. The main MPPJ protocol implementation is imported from github.com/hpicrypto/mppj.

For a complete procedure to run the experiments and reproduce the paper's results, see ARTIFACT-APPENDIX.md. For more information on the protocol's implementation and its most up-to-date version, see https://github.com/hpicrypto/mppj.

Directory structure

• mppj-exps: an expperiment runner for the MPPJ protocol.
• mpspdz-exps: an experiment runner for the generic MPC baseline (MP-SPDZ-based).
• setup: some additional setup-utilities for experiments over networked machines.

Security

This repository contains a prototype implementation of the MPPJ protocol. This is for academic research purposes and should not be considered production-ready.