March 2022 - anti-censorship-team - lists.torproject.org

Microsoft announces shutting down domain fronting attempts in Azure
by Cecylia Bocovich 18 Nov '24

18 Nov '24

It looks like Azure is going to shutdown domain fronting: https://www.microsoft.com/security/blog/2021/03/26/securing-our-approach-to… There isn't a time frame listed in the article, and I haven't gotten any notifications through my Azure account yet. Cecylia

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Request for Comment on Distributed Snowflake Bridge Design
by Shelikhoo 22 Mar '22

22 Mar '22

Hi anti-censorship team and others, We are in the process in increase the scalability of the snowflake bridge. Here is the design I have drafted for informing proxy about which WebSocket address it should connect to and the security issue associated with that. https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snow… Comments are encouraged so that the design can be improved before moving to the next stage. Shelikhoo

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Rust port of extor-static-cookie
by David Fifield 01 Mar '22

01 Mar '22

As an experiment to wring more performance from the snowflake bridge, I started a rough port of the extor-static-cookie shim to Rust. It's not in what I would call a production-ready state with regard to documentation and tests—I wanted to hack something together quickly in order to decide whether it's worth spending more time on. I am also pretty new to Rust async programming. As a side consideration, I wanted to get an idea of what a pluggable transports library for Rust might look like. https://gitlab.torproject.org/dcf/extor-static-cookie/-/tree/rust Currently commit 559fb5e292b45d82464bdaf978c6e1783c796e3d I have the Rust implementation running now (since 2022-02-27 03:00) under the flakey4 instance. The other three instances are running the Go implementation. It's too early to say whether it reduces CPU usage; an hour after being restarted, the flakey4 instance is still catching up to the traffic of the other instances. But it looks like it's stable and functional, at least.

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