Roger Dingledine - The Tor Censorship Arms Race The Next Chapter - DEF CON 27 Conference

Watch on YouTube

Show annotations

Download is disabled.

44,543

1,471

24

Genre: Science & Technology

License: Creative Commons Attribution license (reuse allowed)

Family friendly? Yes

Wilson score: 0.9762

Rating: 4.9358 / 5

Engagement: 3.36%

DEFCONConference

Subscribe | 183K

Shared November 15, 2019

Tor is a free-software anonymizing network that helps people around the world use the Internet in safety. But who cares how good Tor's privacy is, if your government prevents you from reaching the Tor network?

In the beginning, some countries filtered torproject.org by DNS (so we made website mirrors and an email autoresponder for downloading Tor), and then some countries blocked Tor relays by IP address (so we developed bridges, which are essentially unlisted relays), and then some countries blocked Tor traffic by Deep Packet Inspection (so we developed pluggable transports to transform Tor flows into benign-looking traffic).

Then things got weird, with China's nationwide active probing infrastructure to enumerate bridges, with Amazon rolling over to Russia's threats when Telegram used "domain fronting" to get around blocking, with Turkey blocking Tor traffic by DPI in more subtle ways, with Venezuela and Ethiopia and Iran trying new tricks, and more.

In this talk I'll get you up to speed on all the ways governments have tried to block Tor, walk through our upcoming steps to stay ahead of the arms race, and give you some new—easier—ways that let you help censored users reach the internet safely.

Roger Dingledine
Roger Dingledine is president and co-founder of the Tor Project, a nonprofit that develops free and open source software to protect people from tracking, censorship, and surveillance online.

Wearing one hat, Roger works with journalists and activists on many continents to help them understand and defend against the threats they face. Wearing another, he is a lead researcher in the online anonymity field, coordinating and mentoring academic researchers working on Tor-related topics. Since 2002 he has helped organize the yearly international Privacy Enhancing Technologies Symposium (PETS).

Among his achievements, Roger was chosen by the MIT Technology Review as one of its top 35 innovators under 35, he co-authored the Tor design paper that won the Usenix Security "Test of Time" award, and he has been recognized by Foreign Policy magazine as one of its top 100 global thinkers.

Twitter: @RogerDingledine



41:18

Bill Swearingen - HAKC THE POLICE - DEF CON 27 Conference

313K views

49:42

DEFCON 17: Stealing Profits from Spammers or: How I learned to Stop Worrying and Love the Spam

889K views

48:30

Copying Keys from Photos, Molds & More

308K views

51:12

Radio Hacking: Cars, Hardware, and more! - Samy Kamkar - AppSec California 2016

381K views

47:14

DEF CON 26 - Si, Agent X - Wagging the Tail:Covert Passive Surveillance

139K views

1:20:54

Mushrooms, Mycology of Consciousness - Paul Stamets, EcoFarm Conference Keynote 2017

301K views

50:59

DEF CON 22 - Adrian Crenshaw- Dropping Docs on Darknets: How People Got Caught

108K views

49:06

Ochko123 - How the Feds Caught Russian Mega-Carder Roman Seleznev

512K views

44:56

I'll Let Myself In: Tactics of Physical Pen Testers

1.8M views

49:31

Mike Kiser - Ensuring Privacy through Obfuscation - DEF CON 27 Crypto and Privacy Village

3.6K views

41:32

DEFCON 19: The Art of Trolling (w speaker)

479K views

44:50

DEF CON 27 (2019) - Finding Secrets In Publicly Exposed EBS Volumes - Ben Morris

49K views

37:14

DEF CON 22 - Gene Bransfield - Weaponizing Your Pets: The War Kitteh and the Denial of Service Dog

353K views

47:34

DEF CON 23 - Robinson and Mitchell - Knocking my neighbors kids cruddy drone offline

557K views

50:50

The Search for the Perfect Door - Deviant Ollam

949K views

19:55

Nina Kollars - Confessions of an Nespresso Money Mule - DEF CON 27 Conference

475K views

40:47

DEFCON 19: Steal Everything, Kill Everyone, Cause Total Financial Ruin! (w speaker)

962K views

43:07

DEF CON 25 - Roger Dingledine - Next Generation Tor Onion Services

62K views