【講　題】Tor and censorship: lessons learned / Tor 與網路審查制度間的微妙關係 【主講人】Roger Dingledine 　Roger Dingledine is project leader for The Tor Project, a US non-profit 　working on anonymity research and development for such diverse organi- 　zations as the US Navy and the Electronic Frontier Foundation. In addition 　to all the hats he wears for Tor, Roger organizes academic conferences on 　anonymity, speaks at a wide variety of industry and hacker conferences, and 　also does tutorials on anonymity for national and foreign law enforcement. 　* 主要專長：scalable secure systems, anonymity and privacy, cryptography 　　　　　　　and unobservability, civil liberties and human rights, and free 　　　　　　　software advocacy. 　* 聯絡方式：arma AT freehaven.net 　* 個人網頁：http://www.freehaven.net/~arma/cv.html 【時　間】2011-03-29 (Tue.) 14:00-16:00 【地　點】中央研究院 資訊科學研究所 106 室 【主辦單位】中研院 自由軟體鑄造場 (OpenFoundry) http://www.openfoundry.org/ 【議程簡介】 　Tor is a free-software anonymizing network that helps people around the 　world use the Internet in safety. Tor's 1800 volunteer relays carry traffic 　for several hundred thousand users including ordinary citizens who want 　protection from identity theft and prying corporations, corporations who 　want to look at a competitor's website in private, and soldiers and aid 　workers in the Middle East who need to contact their home servers without 　fear of physical harm. Tor was originally designed as a civil liberties 　tool for people in the West. But if governments can block connections to 　the Tor network, who cares that it provides great anonymity? A few years 　ago we started adapting Tor to be more robust in countries like China. We 　streamlined its network communications to look more like ordinary SSL, and 　we introduced "bridge relays" that are harder for an attacker to find and 　block than Tor's public relays. In the aftermath of the Iranian elections 　in June 2009, and then the periodic blockings in China, we've learned a 　lot about how circumvention tools work in reality for activists in tough 　situations. I'll give an overview of the Tor architecture, and summarize 　the variety of people who use it and what security it provides. Then we'll 　focus on the use of tools like Tor in countries like Iran and China: why 　anonymity is important for circumvention, why transparency in design and 　operation is critical for trust, the role of popular media in helping -- 　and harming -- the effectiveness of the tools, and tradeoffs between 　usability and security. After describing Tor's strategy for secure 　circumvention (what we thought would work), I'll talk about how the arms 　race actually seems to be going in practice. 【議程內容】 　┌──────┬──────────────────┐ 　│時間　　　　│內容　　 │ 　├──────┼──────────────────┤ 　│14:00－14:10│開場介紹 │ 　│14:10－15:10│Tor and censorship: lessons learned │ 　│15:10－15:40│Q & A │ 　│15:40－16:00│會後交流 │ 　└──────┴──────────────────┘ 【報名網頁】http://www.openfoundry.org/tw/workshop/details/133 　　　　　　名額：40人，請從速報名，以免向隅。 【聯 絡 人】如有任何疑問，請洽自由軟體鑄造場，洪先生： 　　　　　　[email protected]；02-2788-3799 #1477 --

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