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SUMMARY:No Fixed Abode: Avoiding IP Address Blocking to Circumvent Censors
 hip - Professor Nikita Borisov - University of Illinois at Urbana-Champaig
 n
DTSTART:20140528T130000Z
DTEND:20140528T140000Z
UID:TALK52158@talks.cam.ac.uk
CONTACT:David Greaves
DESCRIPTION:The Internet enables access to a wide variety of information s
 ources\;\nmany countries and organizations\, however\, try to restrict suc
 h access\nfor political and social reasons. People whose access has been\n
 censored make use of a variety of circumvention technologies to find\nthe 
 information they need\; in turn\, the censors use increasingly\nsophistica
 ted tools to render these technologies ineffective.\n\nOne of the more pow
 erful tools censors use are blocking IP addresses\nthat are used for circu
 mvention. I will describe two circumvention\napproaches that are immune to
  this approach: CensorSpoofer\, which\nfakes the source address of its tra
 ffic in order to avoid detection\,\nand Cirripede\, which can be deployed 
 within the Internet routing\ninfrastructure to surreptitiously capture and
  redirects a connection\nto a covert destination. I will discuss the desig
 n of both systems as\nwell as some remaining challenges to their deploymen
 t.
LOCATION:Lecture Theatre 1\, Computer Laboratory
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