[tor-commits] r26254: {} add lunar's LSM presentation in various formats (in projects/presentations: . images)
Andrew Lewman
andrew at torproject.org
Sat Jul 13 22:14:11 UTC 2013
Author: phobos
Date: 2013-07-13 22:14:11 +0000 (Sat, 13 Jul 2013)
New Revision: 26254
Added:
projects/presentations/2013-07-08-LSM2013-header.tex
projects/presentations/2013-07-08-LSM2013.GNUMakefile
projects/presentations/2013-07-08-LSM2013.mdwn
projects/presentations/2013-07-08-LSM2013.pdf
projects/presentations/images/2012-03-19-IEEE-Boston-Presentation.svg
projects/presentations/images/4478306185_72feb04b72_o.jpg
projects/presentations/images/anonymity-different-users.svg
projects/presentations/images/obfsproxy-logo.svg
projects/presentations/images/onion-routing-crash-course-1.svg
projects/presentations/images/onion-routing-crash-course-2.svg
projects/presentations/images/onion-routing-crash-course-3.svg
projects/presentations/images/onion-routing-crash-course-4.svg
projects/presentations/images/onion-routing-crash-course-5.svg
projects/presentations/images/onion-routing-crash-course-6.svg
projects/presentations/images/onion-routing-crash-course-7.svg
projects/presentations/images/onion-routing-crash-course-8.svg
projects/presentations/images/orbot_orweb.png
projects/presentations/images/projects-word-cloud-tor-only.svg
projects/presentations/images/projects-word-cloud.svg
projects/presentations/images/tails.png
projects/presentations/images/tbb.png
projects/presentations/images/threat-model.svg
projects/presentations/images/tor-bubble-graph.svg
projects/presentations/images/tor-consensus-vis-node-circle.svg
projects/presentations/images/tor-consensus-vis-node-onion.svg
projects/presentations/images/tor-logo-root-design.svg
Log:
add lunar's LSM presentation in various formats
Added: projects/presentations/2013-07-08-LSM2013-header.tex
===================================================================
--- projects/presentations/2013-07-08-LSM2013-header.tex (rev 0)
+++ projects/presentations/2013-07-08-LSM2013-header.tex 2013-07-13 22:14:11 UTC (rev 26254)
@@ -0,0 +1,53 @@
+\usepackage{eso-pic}
+
+\renewcommand\sfdefault{phv}
+\renewcommand\familydefault{\sfdefault}
+\usetheme{default}
+\usepackage{color}
+\useoutertheme{default}
+\usepackage{texnansi}
+\usepackage{marvosym}
+%\definecolor{bottomcolour}{rgb}{0.32,0.3,0.38}
+%\definecolor{middlecolour}{rgb}{0.08,0.08,0.16}
+\definecolor{torgreen}{rgb}{0.8,1,0.16}
+\setbeamerfont{title}{size=\Huge}
+\setbeamercolor{structure}{fg=torgreen}
+\setbeamertemplate{frametitle}[default]%[center]
+\setbeamercolor{normal text}{bg=black, fg=white}
+%\setbeamertemplate{background canvas}[vertical shading][bottom=bottomcolour, middle=middlecolour, top=black]
+
+\setbeamertemplate{background canvas}{%
+ \color{black!100}\rule{\paperwidth}{\paperheight}%
+}
+
+\setbeamertemplate{items}[circle]
+\setbeamerfont{frametitle}{size=\huge}
+\setbeamertemplate{navigation symbols}{} %no nav symbols
+
+\setbeamertemplate{title page}
+{
+ \raisebox{\dimexpr\ht\strutbox-\height\relax}{\includegraphics[keepaspectratio,width=.3\textwidth]{images/tor-logo-root-design}}\hfill
+ \begin{minipage}[t]{.69\textwidth}
+ \begin{center}
+ \begin{beamercolorbox}[sep=8pt,center]{title}
+ \usebeamerfont{title}\inserttitle\par
+ \end{beamercolorbox}
+ \ifx\insertsubtitle\@empty
+ \else
+ \vskip2ex
+ \usebeamerfont{subtitle}\insertsubtitle
+ \fi
+ \ifx\insertauthor\@empty
+ \else
+ \vskip2ex
+ \usebeamerfont{author}\insertauthor
+ \fi
+ \ifx\insertdate\@empty
+ \else
+ \vskip2ex
+ \usebeamerfont{date}\insertdate%
+ \fi
+ \end{center}
+ \vfill
+ \end{minipage}
+}
Property changes on: projects/presentations/2013-07-08-LSM2013-header.tex
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Added: svn:mime-type
+ text/x-tex
Added: projects/presentations/2013-07-08-LSM2013.GNUMakefile
===================================================================
--- projects/presentations/2013-07-08-LSM2013.GNUMakefile (rev 0)
+++ projects/presentations/2013-07-08-LSM2013.GNUMakefile 2013-07-13 22:14:11 UTC (rev 26254)
@@ -0,0 +1,17 @@
+.PHONY: all source
+
+PRESENTATION = 2013-07-08-LSM2013
+
+all: $(PRESENTATION).pdf
+
+source: $(PRESENTATION)-src.tar.gz
+
+IMGS = $(shell echo $$(sed -n -e 's/^[^%]*\\includegraphics\([^{]*\)\?{\([^}]*\)}.*$$/\2.*/p' $(PRESENTATION).mdwn | sed -e 's/\.svg$$/\.pdf$$/' | sort -u))
+
+$(PRESENTATION).pdf: $(PRESENTATION).mdwn $(PRESENTATION)-header.tex $(IMGS)
+ pandoc -t beamer \
+ --include-in-header=$(PRESENTATION)-header.tex \
+ --latex-engine=xelatex -o $@ $<
+
+%.pdf: %.svg
+ inkscape --export-pdf=$@ --export-dpi=600 $<
Added: projects/presentations/2013-07-08-LSM2013.mdwn
===================================================================
--- projects/presentations/2013-07-08-LSM2013.mdwn (rev 0)
+++ projects/presentations/2013-07-08-LSM2013.mdwn 2013-07-13 22:14:11 UTC (rev 26254)
@@ -0,0 +1,421 @@
+% Anonymity and censorship circumvention with Tor
+% Lunar \<lunar at torproject.org\>
+% July 8th, 2013 — LSM2013, Brussels
+
+----
+
+\begin{center}
+\begin{beamercolorbox}[sep=8pt,center]{title}
+ \usebeamerfont{title}What is this Tor thing?
+\end{beamercolorbox}
+\end{center}
+
+----
+
+# Tor helps people
+
+\begin{center}
+Estimated 500,000 daily Tor users
+
+\includegraphics[keepaspectratio,width=\textwidth,height=.6\textheight]{images/huge-crowd}
+\end{center}
+
+\begin{flushright}
+{\small cf. \url{https://metrics.torproject.org/users.html}}
+\end{flushright}
+
+# Different sorts of people
+
+\begin{center}
+Anonymity serves different interests
+for different user groups
+
+\includegraphics[keepaspectratio,width=\textwidth]{images/anonymity-different-users}
+\end{center}
+
+\begin{flushright}
+\textit{Anonymity loves company...}
+\end{flushright}
+
+# What's Tor?
+
+ * `tor` is free software
+ * Running the Tor anonymity network
+ * Supported by *The Tor Project, Inc.*, a 501(c)(3) non-profit US organization
+
+----
+
+\begin{center}
+\begin{beamercolorbox}[sep=8pt,center]{title}
+ \usebeamerfont{title}Onion routing
+\end{beamercolorbox}
+\end{center}
+
+----
+
+# Ideas behind onion routing
+
+\begin{center}
+{\Large
+The simplest design use a single\\
+relay to hide connections
+}
+
+\includegraphics[keepaspectratio,width=\textwidth]{images/onion-routing-crash-course-1}
+
+(example: some commercial proxy providers)
+\end{center}
+
+# Ideas behind onion routing
+
+\begin{center}
+{\Large
+But a single relay (or eavesdropper!)
+is a single point of failure
+}
+
+\includegraphics[keepaspectratio,width=\textwidth]{images/onion-routing-crash-course-2}
+\end{center}
+
+# Ideas behind onion routing
+
+\begin{center}
+{\Large
+... or a single point of bypass
+}\\
+(timing analysis allows to match sources and destinations)
+
+\includegraphics[keepaspectratio,width=\textwidth]{images/onion-routing-crash-course-3}
+\end{center}
+
+# Ideas behind onion routing
+
+\begin{center}
+{\Large
+So, add multiple relays so that no single one can betray Alice
+}
+
+\includegraphics[keepaspectratio,width=\textwidth]{images/onion-routing-crash-course-4}
+\end{center}
+
+# Ideas behind onion routing
+
+\begin{center}
+{\Large
+A corrupt first hop can tell that Alice is talking, but not to whom
+}
+
+\includegraphics[keepaspectratio,width=\textwidth]{images/onion-routing-crash-course-5}
+\end{center}
+
+# Ideas behind onion routing
+
+\begin{center}
+{\Large
+A corrupt final hop can tell that somebody is talking to Bob, but not who
+}
+
+\includegraphics[keepaspectratio,width=\textwidth]{images/onion-routing-crash-course-6}
+\end{center}
+
+# Ideas behind onion routing
+
+\begin{center}
+{\Large
+Alice makes a session key with R1... and then tunnels to R2... and to R3
+}
+\includegraphics[keepaspectratio,width=\textwidth]{images/onion-routing-crash-course-7}
+\end{center}
+
+----
+
+\begin{center}
+\begin{beamercolorbox}[sep=8pt,center]{title}
+ \usebeamerfont{title}The Tor network
+\end{beamercolorbox}
+\end{center}
+
+----
+
+# The Tor network
+
+ * nearly 4000 relays
+ * around 3600 volunteer operators
+ * current total measured bandwidth 35 Gb/s
+ * diversity issue: a mere 40 relays see 80% of the total traffic
+
+# The Tor network
+
+\begin{center}
+\includegraphics[keepaspectratio,width=\textwidth, height=.8\textheight]{images/tor-bubble-graph}
+\end{center}
+
+----
+
+\begin{center}
+\begin{beamercolorbox}[sep=8pt,center]{title}
+ \usebeamerfont{title}Using Tor
+\end{beamercolorbox}
+\end{center}
+
+----
+
+# Using Tor: the Tor Browser Bundle
+
+\begin{center}
+\includegraphics[keepaspectratio,width=\textwidth, height=.8\textheight]{images/tbb}
+\end{center}
+
+# Using Tor: the Tails live system
+
+\begin{center}
+\includegraphics[keepaspectratio,width=\textwidth, height=.8\textheight]{images/tails}
+\end{center}
+
+# Using Tor: Orbot and Orweb
+
+\begin{center}
+\includegraphics[keepaspectratio,width=\textwidth, height=.8\textheight]{images/orbot_orweb}
+\end{center}
+
+----
+
+\begin{center}
+\begin{beamercolorbox}[sep=8pt,center]{title}
+ \usebeamerfont{title}Circumventing censorship
+\end{beamercolorbox}
+\end{center}
+
+----
+
+# Tor helps circumventing censorship
+
+\begin{center}
+\includegraphics[keepaspectratio,width=\textwidth]{images/onion-routing-crash-course-8}
+
+{\Large
+Tor routes around censorship
+}
+\end{center}
+
+# Censors do not want Tor
+
+ * The list of Tor relays is public
+ * Upside: server administrators can block exit nodes if they really need to
+ * Downside: allow blocking access to the Tor network
+
+Direct Tor connections are currently blocked in China, Iran, Kazakhstan,
+Syria, the Philippines, ...
+
+# Bridges
+
+ * Limited kind of Tor relay
+ * Private entry point in the Tor network
+ * Different pool of bridge addresses
+ * Some bridges are completely private
+
+\begin{flushright}
+{\small
+But the arm race goes on...
+}
+\end{flushright}
+
+# Censors really do not want Tor
+
+ * Tor traffic is recognizable
+ * Deep Packet Inspection became pervasive
+
+# Obfuscated bridges
+
+ * `obfsproxy` makes traffic to a bridge looks like random noise
+ * *Pluggable* transport framework to enable research
+
+\begin{center}
+\includegraphics[keepaspectratio,width=0.3\textwidth]{images/obfsproxy-logo}
+\end{center}
+
+\begin{flushright}
+{\small
+But the arm race goes on...
+}
+\end{flushright}
+
+# Further developments
+
+Shared secret against active probing
+
+New obfuscation protocols:
+
+ * Flashproxy
+ * Scramblesuit
+ * Format Transforming Encryption
+ * More?
+
+----
+
+\begin{center}
+\begin{beamercolorbox}[sep=8pt,center]{title}
+ \usebeamerfont{title}Tor is not magic
+\end{beamercolorbox}
+\end{center}
+
+----
+
+# Tor does not solve all problems
+
+\begin{center}
+Threat model:\\
+what can the attacker do?
+
+\includegraphics[keepaspectratio,width=\textwidth]{images/threat-model}
+\end{center}
+
+# Case study
+
+> * I present you Wendy.
+> * Wendy works at ACME, Corp.
+> * She discovers that ACME is releasing toxic waste in the environment.
+> * **She wants the word out**.
+
+<!--
+Picture Global Water Partnership
+CC BY-NC-SA 2.0
+<https://secure.flickr.com/photos/globalwaterpartnership/4478306185/>
+-->
+
+# Case study
+
+\begin{center}
+\includegraphics[keepaspectratio,width=\textwidth,height=0.8\textheight]{images/4478306185_72feb04b72_o}
+\end{center}
+
+# Case study
+
+How to **hide who**'s blowing the whistle?
+
+<!--
+Actually, Wendy even likes her job, she'd like to keep it but she wants the
+company to stop doing bad things.
+-->
+
+# Case study
+
+In order to **publish pictures and other documents** about the issue:
+
+ * Create a blog on a free service.
+ * Always connected using Tor.
+
+Pros: provider is unable to tell Wendy's location
+
+Cons: provider might shut down the blog in case of troubles
+
+# Case study
+
+Should Wendy work on her blog at **work**?
+
+ * Tor traffic might stand out
+ * `obfsproxyssh` could do the trick, but not integrated yet
+
+# Case study
+
+Should Wendy work on her blog at **home**?
+
+Watch out for traffic confirmation attacks!
+
+# Case study
+
+ * Few people can possibly know about this
+ * Tor is a low-latency network
+ * Monitoring Wi-Fi requires nothing more than being at range
+ * Packet flow can match the pattern of publishing a blog post
+
+# Case study
+
+Make traffic confirmation attacks harder:
+
+ * Blur the local traffic by participating in torrents
+ * Blur the remote traffic by uploading unrelated files to the
+ blog provider
+ * Set a publication date so the blog post does not appear immediately after
+
+# Case study
+
+Another option would be to get a journalist to write about the story.
+
+But we need to train journalists in secure communications!
+
+# Case study
+
+What if her computer gets **searched** or **attacked by a malware** planted by
+the company?
+
+Use Tails:
+
+ * No traces on her computers
+ * Live systems are a lot harder to compromise
+
+# Case study
+
+Yet another pitfall: **metadata**.
+
+Digital cameras embed date, time, serial numbers and other information in
+picture file.
+
+Tails ships with the *Metadata Anonymization Toolkit* which can easily
+remove them.
+
+# Case study
+
+Summary of a possible solution:
+
+ * Always use Tails
+ * Strip metadata using MAT
+ * Publish on a blog on a free platform
+ * Articles can be prepared at home
+ * The blog takes care of publishing the article at a later time
+
+Wendy should try to imitate someone else writing style to resist stylometry
+analysis.
+
+----
+
+\begin{center}
+\begin{beamercolorbox}[sep=8pt,center]{title}
+ \usebeamerfont{title}Want to help?
+\end{beamercolorbox}
+\end{center}
+
+----
+
+# The Tor ecosystem
+
+\begin{center}
+\includegraphics[keepaspectratio,width=\textwidth,height=0.8\textheight]{images/projects-word-cloud-tor-only}
+\end{center}
+
+# The Tor ecosystem
+
+\begin{center}
+\includegraphics[keepaspectratio,width=\textwidth,height=0.8\textheight]{images/projects-word-cloud}
+\end{center}
+
+# Help is more than welcome!
+
+ * Support
+ * Translations
+ * Development (C, Python, C++, JavaScript, Java, ...)
+ * Research
+ * Testing
+ * Documentation
+ * Outreach
+ * Financial support
+
+# Questions?
+
+\begin{center}
+\includegraphics[keepaspectratio,width=\textwidth, height=.6\textheight]{images/tor-logo-root-design}
+\end{center}
+
+ * English support: \texttt{help at rt.torproject.org}
+ * French support: \texttt{help-fr at rt.torproject.org}
+ * Press requests: \texttt{execdir at toproject.org}
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