September 2026 - tor-dev - lists.torproject.org

Introducing Stade: Mobile P2P messaging using embedded Tor v3 Onion Services and PQC
by Eren 14 Sep '26

14 Sep '26

Hi tor-dev team, We are developing an open-source, serverless mobile messaging application called Stade. Our primary architectural goal is achieving zero metadata exposure without relying on centralized coordination servers or third-party queue relays. To accomplish this, Stade operates directly peer-to-peer over embedded Tor v3 Onion Services, complemented by a post-quantum cryptographic handshake (ML-KEM/Kyber) to ensure long-term forward secrecy against quantum threats. What we are running on Android: Each device runs an embedded Tor daemon to publish an ephemeral/persistent v3 Onion Service. Direct P2P rendezvous and transport occur entirely within the Tor network using onion addresses as cryptographically verifiable identities. No intermediate directories, central rendezvous servers, or clearinghouses. Why we are reaching out: Maintaining persistent, low-latency v3 onion services on mobile operating systems poses concrete engineering challenges—specifically regarding OS background task throttling, battery consumption, and rapid circuit reconstruction across mobile network handovers. We would love to share our operational findings with the Tor mobile ecosystem, gather feedback on best practices for mobile Tor lifecycle management, and explore opportunities to test or contribute back to Tor's mobile integration tooling. Repository: https://github <https://github/>.com/Stade-App/stade Spec: https://stade <https://stade/>.dev Thanks for your continuous work on keeping the open internet private. Looking forward to any technical feedback or collaboration opportunities. Best regards, Eren Stade Head Developer

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Upcoming C-tor security release - 0.4.9.12
by David Goulet 10 Sep '26

10 Sep '26

Greetings everyone! Next Tuesday, September 8th, we will do a C-tor release (0.4.9.12) containing fixes for a set of high severity issues. And then, as a heads up, C-tor will likely enter a release cadence every 2-3 weeks for the foreseeable coming month(s) as we continue to fix more and more security issues we received from this new reality that we happen to all be in where LLMs are in an echo chamber stuck in a tight loop over our C code ;). Cheers! David -- NeD2Y6SX2RdikJfl0oSgWfrO+dQkz9M114CVJBuzW3w=

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Proposal: Rust-pt development
by pryty26 04 Sep '26

04 Sep '26

Proposal: rust-pt - A Rust Framework for Tor Pluggable Transports Dear Tor Project team, anti-censorship-team and other community contributors I have developed recently a new library which is called rust-pt. It is a Rust-based framework for Tor Pluggable Transports. I anticipate everyone knows rust, it's a modern, powerful, fast and safe programming language. And Pt requires performance and safety. That's why, Rust would be an important language for Pt developing. Now I have developed the rust-pt for 3 month, ExtOrPort ConfigParsing, Errors, Macros and Log system is ready. Of course, I'm still actively developing. The code is already published in: https://gitlab.torproject.org/pryty26/rust-pt and https://codeberg.org/pryty26/rust-pt I believe that both community and Tor team, would like to have a Rust-Based Pt library. But currently, there is not a official Pt library for Rust. And most of the community framework, is not well maintained. (ptrs last update is on 2024) I was wondering if anti-censorship team would like to review. If there is any possible, I would like to kindly assign all code ownership to the team. Of course, anyone interested in helping with development is more than welcome. Best regards, pryty26 Sent by pryty26 Sent with [Proton Mail](https://pr.tn/ref/YFS2568X) secure email.

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