[tor-commits] r24688: {projects} update the 2011 slide masters (projects/presentations)
Andrew Lewman
andrew at torproject.org
Fri Apr 29 14:09:30 UTC 2011
Author: phobos
Date: 2011-04-29 14:09:29 +0000 (Fri, 29 Apr 2011)
New Revision: 24688
Added:
projects/presentations/2011-04-21-anonymity.pdf
projects/presentations/2011-04-21-anonymity.tex
Modified:
projects/presentations/2011-slide-masters.odp
projects/presentations/2011-slide-masters.pdf
Log:
update the 2011 slide masters
Added: projects/presentations/2011-04-21-anonymity.pdf
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+\documentclass{beamer}
+\mode<presentation>
+\usetheme{Boadilla}
+\title{Anonymity & Tor Overview}
+\author{Andrew Lewman \\ andrew at torproject.org}
+\date{\today}
+\begin{document}
+
+\begin{frame}
+\maketitle
+\begin{center}
+\includegraphics[height=3cm]{./images/2009-tor-logo}
+\end{center}
+\end{frame}
+
+\begin{frame}
+\frametitle{What are we talking about?}
+\begin{itemize}
+\item Crash course on anonymous communications
+\item Quick overview of Tor
+\item Quick overview of Tor Hidden Services
+\item Future directions
+\end{itemize}
+\end{frame}
+
+\begin{frame}
+\frametitle{The Tor Project, Inc.}
+501(c)(3) non-profit organization dedicated to the research and development of technologies for online anonymity and privacy
+\begin{center}
+\includegraphics[height=5cm]{./images/2009-oval_sticker_new}
+\end{center}
+\end{frame}
+
+\begin{frame}
+\frametitle{What is anonymity?}
+\includegraphics[width=10cm]{./images/2llg3ts}
+\end{frame}
+
+\begin{frame}
+\frametitle{Anonymity isn't cryptography}
+\begin{itemize}
+\item Cryptography protects the contents in transit
+\item You still know who is talking to whom, how often, and how much data is sent.
+\end{itemize}
+\begin{center}
+\includegraphics[width=5cm]{./images/encryption-cc-by-sa}
+\end{center}
+\end{frame}
+
+\begin{frame}
+\frametitle{Anonymity isn't steganography}
+Attacker can tell Alice is talking to someone, how often, and how much data is sent.
+\bigskip
+
+\begin{center}
+\includegraphics[width=5cm]{./images/steganography-cc-by-sa}
+\end{center}
+\end{frame}
+
+\begin{frame}
+\frametitle{Anonymity isn't just wishful thinking...}
+\begin{itemize}
+\item "You can't prove it was me!"
+\pause \item "Promise you won't look"
+\pause \item "Promise you won't remember"
+\pause \item "Promise you won't tell"
+\pause \item "I didn't write my name on it!"
+\pause \item "Isn't the Internet already anonymous?"
+\end{itemize}
+\end{frame}
+
+\begin{frame}
+\frametitle{..since "weak" isn't anonymity.}
+\begin{itemize}
+\item \textit{"You can't prove it was me!"} Proof is a very \textbf{strong} word. Statistical analysis allows suspicion to become certainty.
+\pause \item \textit{"Promise you won't look/remember/tell"} Will other parties have the abilities and incentives to keep these promises?
+\pause \item \textit{"I didn't write my name on it!"} Not what we're talking about.
+\pause \item \textit{"Isn't the Internet already anonymous?"} Nope!
+\end{itemize}
+\end{frame}
+
+\begin{frame}
+\frametitle{Anonymous communication}
+\begin{itemize}
+\item People have to hide in a crowd of other people ("anonymity loves company")
+\item The goal of the system is to make all users look as similar as possible, to give a bigger crowd
+\item Hide who is communicating with whom
+\item Layered encryption and random delays hide correlation between input traffic and output traffic
+\end{itemize}
+\end{frame}
+
+\begin{frame}
+\frametitle{Low versus High-latency anonymous communication systems}
+\begin{itemize}
+\item Tor is not the first system; ZKS, mixmaster, single-hop proxies, Crowds, Java Anon Proxy.
+\item Low-latency systems are vulnerable to end-to-end correlation attacks.
+\item High-latency systems are more resistant to end-to-end correlation attacks, but by definition, less interactive.
+\end{itemize}
+\end{frame}
+
+\begin{frame}
+\frametitle{Low-latency systems are generally more attractive to today's user}
+\begin{itemize}
+\item Interactive apps: web, instant messaging, VOIP, ssh, X11, cifs/nfs, video streaming (millions of users)
+\item Multi-hour delays: email, nntp, blog posting? (tens of thousands of users?)
+\pause \item \begin{center}\begin{Large}And if anonymity loves company...\end{Large}\end{center}
+\end{itemize}
+\end{frame}
+
+\begin{frame}
+\frametitle{What is Tor?}
+\begin{itemize}
+\item online anonymity software and network
+\pause \item open source, freely available (3-clause BSD license)
+\pause \item active research environment: \\
+Rice, UMN, NSF, NRL, Drexel, Waterloo, Cambridge UK, Bamberg Germany, Boston Univ, Harvard, MIT, RPI, Georgia Tech
+\pause \item increasingly diverse toolset: \\
+Tor, Torbutton, Tor Browser Bundle, TA(I)LS LiveCD, Tor Weather, Tor auto-responder, Secure Updater, Orbot, Torora, Tor Check, Arm, Nymble, Tor Control, Tor Wall, TorVM
+\end{itemize}
+\end{frame}
+
+\begin{frame}
+\frametitle{How is Tor different from other systems?}
+\begin{overlayarea}{9cm}{6cm}
+\only<1>{\includegraphics[height=7cm]{./images/single_hop_relay}}
+\only<2>{\includegraphics[height=7cm]{./images/evil_single_hop_relay}}
+\only<3>{\includegraphics[height=7cm]{./images/data_snooping_single_hop_relay}}
+\end{overlayarea}
+\end{frame}
+
+\begin{frame}
+\frametitle{Twitter in Iran: Good.}
+\includegraphics[scale=0.5]{./images/twitter-iran-protests-time}
+\flushright{\tiny From http://www.time.com/time/world/article/0,8599,1905125,00.html}
+\end{frame}
+
+\begin{frame}
+\frametitle{Twitter in USA: Bad.}
+\includegraphics[scale=0.45]{./images/twitter-g20-pittsburgh-gothamist}
+\flushright{\tiny from http://gothamist.com/2009/10/05/fbi\_raids\_queens\_home\_in\_g20\_protes.php}
+\end{frame}
+
+\begin{frame}
+\frametitle{Who uses Tor?}
+\parbox{8cm}{\sloppy \setbeamercolor{background}[\includegraphics[scale=0.35]{./images/anonymousman}}
+\parbox{3cm}{\sloppy
+\begin{flushleft}
+\begin{itemize}
+\begin{small}
+\item Normal people
+\item Law Enforcement
+\item Human Rights Activists
+\item Business Execs
+\item Militaries
+\item Abuse Victims
+\end{small}
+\end{itemize}
+\end{flushleft}
+}
+\end{frame}
+
+
+\begin{frame}
+\frametitle{estimated 300k to 800k daily users}
+\setbeamercolor{background}[\includegraphics[scale=0.4]{./images/huge-crowd}]
+\end{frame}
+
+\begin{frame}
+\frametitle{Tor hides communication patterns by relaying data through volunteer servers}
+\begin{center}
+\begin{overlayarea}{9cm}{6cm}
+\only<1>{\includegraphics[width=9cm]{./images/tor-network}}
+\only<2>{\includegraphics[width=9cm]{./images/tor-safe-selection}}
+\only<3>{\includegraphics[width=9cm]{./images/tor-safe-path}}
+\only<4>{\includegraphics[width=9cm]{./images/tor-keys1}}
+\end{overlayarea}
+\flushright
+\tiny Diagram: Robert Watson
+\end{center}
+\end{frame}
+
+\begin{frame}
+\frametitle{Vidalia Network Map}
+\includegraphics[scale=0.4]{./images/vidalia-network-map}
+\end{frame}
+
+\begin{frame}
+\frametitle{Metrics}
+\begin{itemize}
+\item Measuring metrics anonymously
+\item NSF grant to find out
+\item Archive of hourly consensus, ExoneraTor, VisiTor
+\item Metrics portal: \\ \url{https://metrics.torproject.org/}
+\end{itemize}
+\end{frame}
+
+\begin{frame}
+\frametitle{Tor hidden services allow privacy enhanced hosting of services}
+\includegraphics[scale=0.5]{./images/hidden-federalist}
+\end{frame}
+
+\begin{frame}
+\frametitle{dot onion you say?}
+\includegraphics[scale=0.6]{./images/Zookos-triangle}
+\end{frame}
+
+\begin{frame}
+\frametitle{Hidden services, in text}
+\begin{itemize}
+\item Distributed Hash Table (DHT) Directory
+\pause \item Rendezvous points
+\pause \item Anonymity for both the server and client
+\end{itemize}
+\end{frame}
+
+\begin{frame}
+\frametitle{Hidden Services, in graphics}
+\begin{overlayarea}{9cm}{6cm}
+\only<1>{\includegraphics[scale=0.5]{../../website/trunk/images/THS-1}}
+\only<2>{\includegraphics[scale=0.5]{../../website/trunk/images/THS-2}}
+\only<3>{\includegraphics[scale=0.5]{../../website/trunk/images/THS-3}}
+\only<4>{\includegraphics[scale=0.5]{../../website/trunk/images/THS-4}}
+\only<5>{\includegraphics[scale=0.5]{../../website/trunk/images/THS-5}}
+\only<6>{\includegraphics[scale=0.5]{../../website/trunk/images/THS-6}}
+\end{overlayarea}
+\end{frame}
+
+\begin{frame}
+\frametitle{Operating Systems leak info like a sieve}
+\parbox{5cm}{\sloppy \setbeamercolor{background}[\includegraphics[height=7cm]{./images/cropped-hijack-sign-south-africa}}
+\parbox{5cm}{\begin{itemize}
+\item Applications, network stacks, plugins, oh my....
+\pause some call this "sharing"
+\pause \item Did you know Microsoft Word and OpenOffice Writer are browsers?
+\pause \item \url{www.decloak.net} is a fine test
+\end{itemize}
+}
+\end{frame}
+
+\begin{frame}
+\frametitle{Mobile Operating Systems}
+\begin{itemize}
+\item Entirely new set of challenges for something designed to know where you are at all times.
+\item Orbot: Tor on Android. \url{https://guardianproject.info/apps/}
+\item Tor on iphone, maemo/meego, symbian, etc
+\item Tor on Windows CE, \url{http://www.gsmk.de} as an example.
+\item Guardian Project, \url{https://guardianproject.info/}
+\end{itemize}
+\end{frame}
+
+\begin{frame}
+\frametitle{Next steps}
+Visit \url{https://www.torproject.org/} for more information, links, and ideas.
+\end{frame}
+
+\begin{frame}
+\frametitle{Credits \& Thanks}
+\begin{itemize}
+\item who uses tor? \url{http://www.flickr.com/photos/mattw/2336507468/siz}, Matt Westervelt, CC-BY-SA.
+\item danger!, \url{http://flickr.com/photos/hmvh/58185411/sizes/o/}, hmvh, CC-BY-SA.
+\item 500k, \url{http://www.flickr.com/photos/lukaskracic/334850378/sizes/l/}, Luka Skracic, used with permission.
+\end{itemize}
+\end{frame}
+
+\end{document}
Property changes on: projects/presentations/2011-04-21-anonymity.tex
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Added: svn:mime-type
+ text/x-tex
Modified: projects/presentations/2011-slide-masters.odp
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Modified: projects/presentations/2011-slide-masters.pdf
===================================================================
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