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2018-08-31-ccchh-meetup.tex
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2018-08-31-ccchh-meetup.tex
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\documentclass[aspectratio=169,10pt]{beamer}
\usepackage[utf8]{inputenc}
\usepackage{tikz}
\usepackage{forloop}
\usetheme{onion}
\title{Tor Meetup}
\subtitle{Hamburg}
\date{August 31, 2018}
\author{}
\institute{CCCHH}
\titlegraphic{\onionlogo{OnionBlack}}
\setlength{\parskip}{3mm}
%https://tex.stackexchange.com/questions/99316/symbol-for-external-links
\newcommand{\ExternalLink}{%
\tikz[x=1.2ex, y=1.2ex, baseline=-0.05ex]{%
\begin{scope}[x=1ex, y=1ex]
\clip (-0.1,-0.1)
--++ (-0, 1.2)
--++ (0.6, 0)
--++ (0, -0.6)
--++ (0.6, 0)
--++ (0, -1);
\path[draw, line width = 0.5, rounded corners=0.5]
(0,0) rectangle (1,1);
\end{scope}
\path[draw, line width = 0.5] (0.5, 0.5) -- (1, 1);
\path[draw, line width = 0.5] (0.6, 1) -- (1, 1) -- (1, 0.6);
}
}
\begin{document}
\maketitle
\begin{frame}[fragile]{Outline}
\begin{columns}
\begin{column}{0.5\textwidth}
\begin{itemize}
\item Introduction to Tor
\item Q\&A
\item Tor Association for Hamburg
\end{itemize}
\end{column}
\begin{column}{0.5\textwidth}
\begin{center}
\begin{overlayarea}{\textwidth}{0.5\textheight}
\includegraphics[width=\textwidth]{img/Color.pdf}
\end{overlayarea}
\end{center}
\end{column}
\end{columns}
\end{frame}
\begin{frame}[fragile]{The Tor Project}
\alert{Mission:} be the global resource for \textbf{technology}, \textbf{advocacy}, \textbf{research} and \textbf{education} in the ongoing pursuit of \textbf{freedom of speech}, \textbf{privacy rights online}, and \textbf{censorship circumvention}.
\end{frame}
\begin{frame}[fragile]{What is Tor?}
\begin{itemize}
\item Online anonymity
\begin{itemize}
\item FLOSS
\item Open (volunteer-based) network
\end{itemize}
\item Community: researchers, developers, users, relay operators, [$\ldots$]
\item U.S. 501(c)(3) non-profit organization
\end{itemize}
\end{frame}
\begin{frame}[fragile]{What is Tor?}
\begin{center}
\href{https://metrics.torproject.org/userstats-relay-country.html}{\includegraphics[height=0.75\textheight]{img/userstats.pdf}}
Estimated 2.000.000+ Tor users (daily)
\end{center}
\end{frame}
\begin{frame}[fragile]{How does the Internet work?}
\begin{columns}
\begin{column}{0.5\textwidth}
\begin{center}
\href{https://commons.wikimedia.org/wiki/File:Internet_map_1024.jpg}{\includegraphics[height=0.75\textheight]{img/internet.jpg}}
\end{center}
\hbox{\thinspace{\small\itshape The Opte Project, \href{https://commons.wikimedia.org/wiki/File:Internet_map_1024.jpg}{Internet map 1024}, \href{https://creativecommons.org/licenses/by/2.5/legalcode}{CC BY 2.5}}}
\end{column}
\begin{column}{0.5\textwidth}
\begin{itemize}
\item A gigantic network of computers, servers and devices
\item Every PC, server, device, refrigerator, $\ldots$ requires a unique identifier - \textbf{IP address}
\item Internet is not the WWW (World Wide Web)
\item Internet is the infrastructure
\item Web is a service of this infrastructure
\end{itemize}
\end{column}
\end{columns}
\end{frame}
\begin{frame}[fragile]{How does the Internet work?}
On the Internet we are sending (a lot) of private data:
\begin{itemize}
\item Source/destination IP address
\begin{itemize}
\item Geographical location
\end{itemize}
\item WWW
\begin{itemize}
\item Web browser
\item Operating system
\item Addons and extensions
\end{itemize}
\item Other services: e-mail, telephone, chat (IRC, IM), file sharing, $\ldots$
\end{itemize}
\end{frame}
\begin{frame}[fragile]{Understanding your threat model}
\emph{I use encryption (HTTPS, ...) my ISP cannot see my traffic!}
Maybe it cannot see your traffic (in cleartext), \textbf{but} it tracks:
\begin{itemize}
\item Websites visited
\item Location logs
\item IP address logs
\item \ldots archived for x time: data retention
\end{itemize}
\end{frame}
\begin{frame}[fragile]{VPN / Proxy providers}
Often a single point of failure
\begin{center}
%draw.io
\includegraphics<1>[width=0.8\textwidth]{img/vpn1.pdf}
\includegraphics<2>[width=0.8\textwidth]{img/vpn2.pdf}
\includegraphics<3>[width=0.8\textwidth]{img/vpn3.pdf}
\end{center}
\end{frame}
\begin{frame}[fragile]{Anonymity: different interests for different user groups}
\begin{center}
%draw.io
\includegraphics[width=0.8\textwidth]{img/interests.pdf}
\end{center}
\end{frame}
% https://svn.torproject.org/svn/website/trunk/images/
\begin{frame}[fragile]{How Tor works}
\begin{center}
\href{https://www.torproject.org/about/overview.html.en\#thesolution}{
\includegraphics<1>[width=0.75\textwidth]{img/htw1.pdf}
\includegraphics<2>[width=0.75\textwidth]{img/htw2.pdf}
\includegraphics<3>[width=0.75\textwidth]{img/htw3.pdf}
}
\end{center}
\only<1>{\hbox{\thinspace{\small\itshape \href{https://svn.torproject.org/svn/website/trunk/images/htw1.svg}{https://svn.torproject.org/svn/website/trunk/images/htw1.svg}}}}
\only<2>{\hbox{\thinspace{\small\itshape \href{https://svn.torproject.org/svn/website/trunk/images/htw2.svg}{https://svn.torproject.org/svn/website/trunk/images/htw2.svg}}}}
\only<3>{\hbox{\thinspace{\small\itshape \href{https://svn.torproject.org/svn/website/trunk/images/htw3.svg}{https://svn.torproject.org/svn/website/trunk/images/htw3.svg}}}}
\end{frame}
\begin{frame}[fragile]{Tor relay bandwidth}
\begin{center}
\only<1>{\href{https://metrics.torproject.org/bandwidth.html}{\includegraphics[width=0.9\textwidth]{img/bandwidth1.pdf}}}
\only<2>{\href{https://metrics.torproject.org/bandwidth-flags.html}{\includegraphics[width=0.9\textwidth]{img/bandwidth2.pdf}}}
\end{center}
\end{frame}
\begin{frame}[fragile]{Safety}
Tor's safety comes from diversity
\begin{itemize}
\item Diversity of relays
\item Diversity of users and reasons to use Tor
\end{itemize}
Transparency
\begin{itemize}
\item FLOSS
\item Public design documents and specifications
\item Public research
\end{itemize}
\end{frame}
%
% \begin{frame}[fragile]{But what about the bad people?}
% \begin{itemize}
% \item (remember) the millions of daily users
% \item Still a two-edged sword?
% \item Good people need Tor much more than bad people need it
% \end{itemize}
% \end{frame}
\begin{frame}[fragile]{Onion services}
Publish web sites and other services without needing to reveal the location of the site
\begin{columns}
\begin{column}{0.5\textwidth}
\begin{itemize}
\item Self authenticated
\item End-to-end encrypted
\item Built-in NAT punching
\item Limit surface area
\item No need to \emph{exit} from Tor
\end{itemize}
\end{column}
\begin{column}{0.5\textwidth}
\begin{center}
\href{https://www.torproject.org/docs/onion-services.html.en}{\includegraphics[width=\textwidth]{img/onion5.png}}
\end{center}
\only<1>{\hbox{\thinspace{\small\itshape \href{https://www.torproject.org/images/tor-onion-services-5.png}{https://www.torproject.org/images/tor-onion-services-5.png}}}}
\end{column}
\end{columns}
\end{frame}
\begin{frame}[fragile]{Onion addresses}
\begin{itemize}
\item 3g2upl4pq6kufc4m.onion
\item \alert{facebook}corewwwi.onion
\item \alert{jamie}3vkiwibfiwucd6vxijskbhpjdyajmzeor4mc4i7yopvpo4p7cyd.onion
\end{itemize}
\end{frame}
\begin{frame}[fragile]{Onion-service traffic}
\begin{center}
\href{https://metrics.torproject.org/hidserv-rend-relayed-cells.html}{\includegraphics[width=0.9\textwidth]{img/onionservice.pdf}}
\end{center}
\end{frame}
\begin{frame}[fragile]{Onion services}
\begin{columns}
\begin{column}{0.5\textwidth}
\begin{itemize}
\item About 3\% of Tor's traffic has to do with onion services at all
\item Onion services are evolving technology
\item Terbium labs (and others) found ~7000 onion websites
\item Also used for messengers and other applications
\end{itemize}
\end{column}
\begin{column}{0.5\textwidth}
\begin{center}
\begin{overlayarea}{\textwidth}{0.5\textheight}
\only<1>{\href{https://en.wikipedia.org/wiki/Facebookcorewwwi.onion}{\includegraphics[width=0.9\textwidth]{img/facebookonion.jpg}}}
\only<2>{\href{https://securedrop.org/}{\includegraphics[width=0.9\textwidth]{img/securedrop.png}}}
\only<3>{\href{https://ricochet.im/}{\includegraphics[width=0.9\textwidth]{img/ricochet.png}}}
\only<4>{\href{https://onionshare.org/}{\includegraphics[width=0.9\textwidth]{img/onionshare.png}}}
\end{overlayarea}
\end{center}
\end{column}
\end{columns}
\end{frame}
\begin{frame}[fragile]{How can you help Tor?}
\begin{itemize}
\item Use \alert{Tor} and teach your friends
\item Run a \alert{relay} or a \alert{bridge}
\item Help fix -- and fix -- bugs
\item Work on open research problems (\href{https://petsymposium.org/}{petsymposium.org})
\item \href{https://donate.torproject.org/pdr}{Donate}
\end{itemize}
\end{frame}
\begin{frame}[fragile]{Protect your privacy}
\begin{center}
\href{https://www.torproject.org/projects/torbrowser.html.en}{\includegraphics[height=0.85\textheight]{img/torbrowser.png}}
\end{center}
\end{frame}
\begin{frame}[fragile]{Further information}
\begin{itemize}
\item \href{https://www.torproject.org/}{www.torproject.org}
\item \href{https://support.torproject.org/}{support.torproject.org}
\item \href{https://blog.torproject.org/}{Blog}
\item \href{https://metrics.torproject.org/}{Metrics}
\item \href{https://tails.boum.org/}{Tails}
\end{itemize}
\end{frame}
%Q&A
\maketitle
\begin{frame}[fragile]{Artikel 10}
2 people, running relays for years
\begin{itemize}
\item 1 exit since about 1 year
\end{itemize}
\begin{center}
\href{https://metrics.torproject.org/rs.html#search/family:F8BEB0F7AACC4F3EA6FF2C1FC19A9BD753887355}{\includegraphics[width=0.8\textwidth]{img/family.png}}
\end{center}
\textbf{We want to grow.}
\end{frame}
\begin{frame}[fragile]{Artikel 10}
\begin{center}
\href{https://metrics.torproject.org/rs.html#details/F8BEB0F7AACC4F3EA6FF2C1FC19A9BD753887355}{\includegraphics[height=0.8\textheight]{img/artikel10.pdf}}
\end{center}
\end{frame}
\begin{frame}[fragile]{YATA -- Yet another Tor association?}
\alert{Others:} Zwiebelfreunde, Digitalcourage, Artikel 5, Foundation for Applied Privacy \href{https://torservers.net/partners.html}{\ExternalLink}
\alert{Why?} Decentralize all the things!
\end{frame}
\begin{frame}[fragile]{Stay in contact}
\begin{center}
\href{https://lists.riseup.net/www/info/artikel10}{\includegraphics[height=0.7\textheight]{img/mailinglist.png}}
\href{https://lists.riseup.net/www/info/artikel10}{lists.riseup.net/www/info/artikel10}
\end{center}
\end{frame}
\begin{frame}[fragile]{Sources}
The presentation is based on \href{https://people.torproject.org/~andz/presentations/enucomp-keynote-parnaiba-br-2017.pdf}{https://people.torproject.org/~andz/presentations/enucomp-keynote-parnaiba-br-2017.pdf}.
\end{frame}
\end{document}