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UID:313@lincs.fr
DTSTART;TZID=Europe/Paris:20170705T140000
DTEND;TZID=Europe/Paris:20170705T150000
DTSTAMP:20170705T133355Z
URL:https://www.lincs.fr/events/tba-7/
SUMMARY:Global Measurements of Internet Censorship
DESCRIPTION:\n\n\nAbstract:\nInternet users in many countries around the
 world are subject to various forms of censorship and information control.
 Despite its widespread nature\, however\, measuring Internet censorship on
 a global scale has remained an elusive goal. Internet censorship is known
 to vary across time and within regions (and Internet Service Providers)
 within a country. To capture these complex dynamics\, Internet censorship
 measurement must be both continuous and distributed across a large number
 of vantage points. To date\, gathering such information has required
 recruiting volunteers to perform measurements from within countries of
 interest\; this approach does not permit collection of continuous
 measurements\, and it also does not permit collection from a large number
 of measurement locations\; it may also put the people performing the
 measurements at risk. Over the past four years\, we have developed a
 collection of measurement techniques to surmount the limitations of these
 conventional approaches. In this talk\, I will describe three such
 techniques: (1) Encore\, a tool that performs cross-origin requests to
 measure Web filtering\; (2) Augur\, a tool that exploits side-channel
 information in the Internet Protocol (IP) to measure filtering using
 network-level access control lists\; and (3) a tool to measure DNS
 filtering using queries through open DNS resolvers. These three tools allow
 us—for the first time ever—to
 characterize Internet censorship continuously\, from hundreds of countries
 around the world\, at different layers of the network protocol stack. each
 of these techniques involves both technical and ethical challenges. I will
 describe some of the challenges that we faced in designing and implementing
 these tools\, how we tackled these challenges\, our experiences with
 measurements to date\, and our plans for the future. Long term\, our goal
 is to collaborate with social scientists to bring data to bear on a wide
 variety of questions concerning Internet censorship and information
 control\; I will conclude with an appeal to cross-disciplinary work in this
 area and some ideas for how computer scientists and social scientists might
 work together on some of these pressing questions going forward.This
 research is in collaboration with Sam Burnett\, Roya Ensafi\, Paul Pearce\,
 Ben Jones\, Frank Li\, and Vern Paxson.\n\n\nBiography:\nNick Feamster is a
 professor in the Computer Science Department at Princeton University and
 the Deputy Director of the Princeton University Center for Information
 Technology Policy (CITP). Before joining the faculty at Princeton\, he was
 a professor in the School of Computer Science at Georgia Tech. He received
 his Ph.D. in Computer science from MIT in 2005\, and his S.B. and M.Eng.
 degrees in Electrical Engineering and Computer Science from MIT in 2000 and
 2001\, respectively. Nick’s research focuses on improving
 the security and performance of communications networks with systems that
 draw on advanced Internet measurement\, data analytics\, and machine
 learning. Nick is an ACM Fellow. Among other awards\, he received the
 Presidential Early Career Award for Scientists and Engineers (PECASE) for
 his contributions to cybersecurity\, the Technology Review 35 "Top Young
 Innovators Under 35" award\, and the ACM SIGCOMM Rising Star Award.\n\n\n
CATEGORIES:Seminars,Youtube
LOCATION:LINCS Seminars room\, 23\, avenue d'Italie\, Paris\, 75013\,
 France
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TZID:Europe/Paris
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DTSTART:20170326T030000
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