Jonathan Weiss

I'm a third-year PhD student at the Hebrew University of Jerusalem, advised by Dr. Yossi Gilad. I focus on distributed and metadata-private communication systems, and I am passionate about coding, cryptography, and large-scale systems.

When I'm not working, you'll catch me sleeping soundly with my dog ๐Ÿ’ค๐Ÿ•.

Research & Publications

Cohort: Decentralized PIR

Jonathan Weiss, Yossi Gilad

ACM Symposium on Operating Systems Principles (SOSP 2026)

Cohort emulates a single-server PIR protocol over a multitude of weak and possibly malicious servers.

PIR Distributed Systems Error Correction Resiliant Systems
SlicedPIR: Offloading Heavyweight Work with NTT

Jonathan Weiss, Yossi Gilad

ACM SIGSAC Conference on Computer and Communications Security (CCS 2025)

SlicedPIR, awarded the Distinguished Paper Award at CCS 2025, is a distributed Private Information Retrieval (PIR) protocol, reducing the communication overhead of Distributed PIR (DPIR) by 95%.

PIR FHE metadata-private communication system
Distributed PIR: Scaling Private Messaging via the Users' Machines

Elkana Tovey, Jonathan Weiss, Yossi Gilad

ACM SIGSAC Conference on Computer and Communications Security (CCS 2024)

A distributed Private Information Retrieval (PIR) protocol, with oblivious matrix multiplication verification protocol at its core.

PIR FHE metadata-private communication system
Proving Server Faults: RPCs for Distributed Systems in Byzantine Networks

Jonathan Weiss, Albert Kwon, Yossi Gilad

Proceedings of the 19th ACM Workshop on Hot Topics in Networks (2020)

We design rRPC, a robust remote procedure call library for distributed systems running in Byzantine networks. rRPC ensures that either the call succeeds or the online caller/callee can create a third-party verifiable proof that the other party is faulty

RPC Byzantine Networks

Projects

go-gao

A Reed-Solomon decoder over 63-bit prime fields: error correction for Shamir secret sharing, distributed systems, and scientific computing in Go.

Go Error Correction Reed-Solomon Field Arithmetic Polynomial Arithmetic NTT