law enforcement | Tor Blog

CALEA 2 and Tor

Journalists and activists have been asking me this week about the news that the Obama administration is now

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Trip report: Tor trainings for the Dutch and Belgian police

In January I did Tor talks for the Dutch regional police, the Dutch national police, and the Belgian national police.

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Trip report, October FBI conference

In October I attended an FBI conference, as part of my work to try to keep Tor on good relations with law enforcement.

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A visit to Iceland

I spent two days in Iceland discussing Tor and freedom of information with various people.

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Poland, Internet Censorship, and Tor

Over the past month I've been working with a few people from Poland. We are discussing how we can improve the impression of Tor in country.

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Talking to German police in Stuttgart

In early January after 24C3, I travelled to Stuttgart to meet with the police there. I spoke to about 30 or 40 investigators.

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Upcoming Events

November 26, 2020

Tor introduction @ LHC (Campinas)

Dia 26 de novembro às 20 horas, LHC Convida Gus "Introdução ao Tor"

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Recent Updates

New alpha release: Tor 0.4.5.2-alpha

There's a new alpha release available for download. If you build Tor from source, you can download the source code for 0.4.5.2-alpha from the download page on the website. Packages should be available over the coming weeks, with a new alpha Tor Browser release by mid-December.

Remember, this is an alpha release: you should only run this if you'd like to find and report more bugs than usual.

Tor 0.4.5.2-alpha is the second alpha release in the 0.4.5.x series. It fixes several bugs present in earlier releases, including one that made it impractical to run relays on Windows. It also adds a few small safety features to improve Tor's behavior in the presence of strange compile-time options, misbehaving proxies, and future versions of OpenSSL.

Changes in version 0.4.5.2-alpha - 2020-11-23

Major bugfixes (relay, windows):
- Fix a bug in our implementation of condition variables on Windows. Previously, a relay on Windows would use 100% CPU after running for some time. Because of this change, Tor now require Windows Vista or later to build and run. Fixes bug 30187; bugfix on 0.2.6.3-alpha. (This bug became more serious in 0.3.1.1-alpha with the introduction of consensus diffs.) Patch by Daniel Pinto.
Minor features (compilation):
- Disable deprecation warnings when building with OpenSSL 3.0.0 or later. There are a number of APIs newly deprecated in OpenSSL 3.0.0 that Tor still requires. (A later version of Tor will try to stop depending on these APIs.) Closes ticket 40165.