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[tor-commits] r24264: {} add the HFOSS presentation from today. (projects/presentations)
Author: phobos
Date: 2011-02-24 22:47:15 +0000 (Thu, 24 Feb 2011)
New Revision: 24264
Added:
projects/presentations/2011-02-24-hfoss-presentation.pdf
projects/presentations/2011-02-24-hfoss-presentation.tex
Log:
add the HFOSS presentation from today.
Added: projects/presentations/2011-02-24-hfoss-presentation.pdf
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Property changes on: projects/presentations/2011-02-24-hfoss-presentation.pdf
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--- projects/presentations/2011-02-24-hfoss-presentation.tex (rev 0)
+++ projects/presentations/2011-02-24-hfoss-presentation.tex 2011-02-24 22:47:15 UTC (rev 24264)
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+\documentclass{beamer}
+\mode<presentation>
+\usetheme{Pittsburgh}
+\usecolortheme{beaver}
+\title{Free Software, Free Internet, Anonymity \& Tor}
+\author{Andrew Lewman \\ andrew@xxxxxxxxxxxxxx}
+\date{24 Feb 2011}
+\begin{document}
+
+\begin{frame}
+\maketitle
+\begin{center}
+\includegraphics[height=3cm]{./images/2009-tor-logo}
+\hspace{1cm}
+\includegraphics[height=3cm]{./images/mullah}
+\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.
+\item This is the core of traffic analysis.
+\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, circumvention software and network
+\item open source, free software (BSD 3-clause \& GPLv2 licenses)
+\pause \item active research environment: \\
+Rice, UMN, NSF, NRL, Drexel, Waterloo, Cambridge UK, Bamberg Germany, Boston U, Harvard, MIT, RPI, GaTech
+\pause \item increasingly diverse toolset: \\
+Tor, Torbutton, Tor Browser Bundle, TAILS LiveCD/USB, Tor Weather, Tor auto-responder, Secure Updater, Orbot/Orlib, Tor Check, Arm, Nymble, Tor Control, Metrics, TorBEL, etc...
+\end{itemize}
+\end{frame}
+
+\begin{frame}
+\frametitle{Who is The Tor Project, Inc?}
+\begin{columns}[c]
+\column{5cm}
+\includegraphics[height=4.5cm]{./images/2009-oval_sticker_new}
+\column{5cm}
+The 501(c)(3) non-profit organization dedicated to the research and development of tools for online anonymity and privacy
+\end{columns}
+\end{frame}
+
+\begin{frame}
+\frametitle{Tor is a low-latency anonymity system}
+\begin{itemize}
+\item Based on technology developed in the Onion Routing project
+\item Privacy by design, not by policy (no data collected)
+\item Commonly used for web browsing and instant messaging (works for any TCP traffic)
+\item Originally built as a pure anonymity system (hides who is talking to whom)
+\item Now designed to resist censorship too (hides whether someone is using the system at all)
+\item Centralized directory authorities publish a list of all servers
+\end{itemize}
+
+\begin{center}
+\includegraphics[height=3cm]{./images/2009-tor-logo}
+\end{center}
+\end{frame}
+
+\begin{frame}
+\frametitle{Tor code stats}
+\includegraphics[scale=0.6]{./images/tor-lines-of-code-by-language}
+\flushright \tiny stats from ohloh.net
+\end{frame}
+
+\begin{frame}
+\frametitle{Tor code stats}
+\includegraphics[scale=0.55]{./images/ohloh-lines-of-code-by-language}
+\flushright \tiny stats from ohloh.net
+\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=0.35]{./images/vidalia-network-map}
+\end{frame}
+
+\begin{frame}
+\frametitle{Measuring the Tor Network}
+\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{How many people use Tor?}
+It's an anonymity system. \\[1cm]
+\pause \includegraphics[scale=0.5]{./images/direct-users-2011-02-22-150-all-2009-09-01}
+\end{frame}
+
+\begin{frame}
+\frametitle{Seriously, how many people use Tor?}
+\begin{flushleft}
+\includegraphics[width=12cm]{./images/2009-12-16-mozilla-stats}
+\end{flushleft}
+\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{Hidden services allow privacy enhanced hosting}
+\includegraphics[scale=0.4]{./images/hidden-federalist}
+\end{frame}
+
+\begin{frame}
+\frametitle{Did you catch that url?}
+\includegraphics[scale=1.0]{./images/hidden-federalist-zoom}
+\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{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{How can coding help?}
+\includegraphics[scale=0.6]{./images/developer-projects}
+\end{frame}
+
+\begin{frame}
+\frametitle{How to get involved?}
+\begin{center}
+\begin{large}
+\url{https://torproject.org/volunteer}
+\end{large}
+\end{center}
+\end{frame}
+
+\begin{frame}
+\frametitle{Supporters}
+\includegraphics[scale=.5]{./images/167234088_08f07f0dbe_o}
+\end{frame}
+
+\begin{frame}
+\frametitle{Credits}
+\begin{itemize}
+\item Thank you to Steven J. Murdoch, \url{http://www.cl.cam.ac.uk/users/sjm217/}, for the research and basis for the latter parts of the presentation. \\
+\item Photographer and Diagram credits as listed throughout the presentation.
+\end{itemize}
+\end{frame}
+
+\end{document}
Property changes on: projects/presentations/2011-02-24-hfoss-presentation.tex
___________________________________________________________________
Added: svn:mime-type
+ text/x-tex
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