Initial import of slides

.gitignore

@@ -30,3 +30,4 @@
 *.vrb
 *.xdy
 *.tdo
+tox.pdf

mybeamer.cls

@@ -0,0 +1,177 @@
+\ProvidesClass{mybeamer}
+\LoadClass[hyperref={pdfpagelabels=true},compress]{beamer}
+
+\usepackage[utf8]{inputenc}
+\usepackage[ngerman]{varioref}
+\usepackage[ngerman]{babel}
+\usepackage{ngerman}
+\usepackage{ifthen}
+
+\usepackage[labelformat=empty]{caption}
+
+\usepackage{listings}
+\usepackage{MnSymbol}		% Icons for Listing
+\definecolor{mygreen}{rgb}{0,0.6,0}
+\definecolor{mygray}{rgb}{0.5,0.5,0.5}
+\definecolor{mymauve}{rgb}{0.58,0,0.82}
+\usepackage{xcolor}
+\definecolor{toxred}{HTML}{FE0000}
+\definecolor{toxblue}{HTML}{0033FF}
+\definecolor{tox_grey}{RGB}{127,127,127}
+\definecolor{tox_lightgrey}{RGB}{220,220,220}
+\definecolor{tox_xlightgrey}{RGB}{240,240,240}
+
+\lstset{ %
+  backgroundcolor=\color{tox_xlightgrey},   % choose the background color; you must add \usepackage{color} or \usepackage{xcolor}
+  basicstyle=\scriptsize,        % the size of the fonts that are used for the code
+  breakatwhitespace=true,          % sets if automatic breaks should only happen at whitespace
+  breaklines=true,                 % sets automatic line breaking
+  captionpos=b,                    % sets the caption-position to bottom
+  commentstyle=\color{mygreen},    % comment style
+  deletekeywords={...},            % if you want to delete keywords from the given language
+  escapeinside={\%*}{*)},          % if you want to add LaTeX within your code
+  extendedchars=true,              % lets you use non-ASCII characters; for 8-bits encodings only, does not work with UTF-8  
+  keepspaces=true,                 % keeps spaces in text, useful for keeping indentation of code (possibly needs columns=flexible)
+  keywordstyle=\color{blue},       % keyword style
+  language=Java,                    % the language of the code
+  morekeywords={*,...},            % if you want to add more keywords to the set
+  numbers=none,                    % where to put the line-numbers; possible values are (none, left, right)
+  numbersep=5pt,                   % how far the line-numbers are from the code
+  numberstyle=\tiny\color{mygray}, % the style that is used for the line-numbers
+  rulecolor=\color{white},         % if not set, the frame-color may be changed on line-breaks within not-black text (e.g. comments (green here))
+  showspaces=false,                % show spaces everywhere adding particular underscores; it overrides 'showstringspaces'
+  showstringspaces=false,          % underline spaces within strings only
+  showtabs=true,                  % show tabs within strings adding particular underscores
+  stepnumber=1,                    % the step between two line-numbers. If it's 1, each line will be numbered
+  stringstyle=\color{mymauve},     % string literal style
+  tabsize=2,                       % sets default tabsize to 2 spaces
+  title=\lstname,                   % show the filename of files included with \lstinputlisting; also try caption instead of title
+	prebreak=\raisebox{0ex}[0ex][0ex]
+        {\ensuremath{\rhookswarrow}},
+	%postbreak=\raisebox{0ex}[0ex][0ex]
+  %      {\ensuremath{\rcurvearrowse\space}},
+	literate=%
+{Ö}{{\"O}}1
+{Ä}{{\"A}}1
+{Ü}{{\"U}}1
+{ß}{{\ss}}2
+{ü}{{\"u}}1
+{ä}{{\"a}}1
+{ö}{{\"o}}1
+}
+
+
+
+\beamersetuncovermixins{\opaqueness<1>{25}}{\opaqueness<1->{15}}
+\beamertemplatetransparentcovereddynamicmedium
+\setbeamertemplate{caption}[numbered]
+
+\usenavigationsymbolstemplate{}
+\usepackage{beamerthemeBerlin}
+\usecolortheme{dove}
+\useoutertheme{miniframes}
+
+% Bullets
+\setbeamercolor{block title}{fg=toxblue,bg=tox_lightgrey}
+\setbeamercolor{block body}{fg=black, bg=tox_xlightgrey}
+\setbeamercolor{titlelike}{fg=toxblue, bg=white}
+\setbeamercolor{mini frame}{fg=toxblue, bg=tox_grey}
+\setbeamercolor{section title}{fg=toxblue, bg=tox_grey}
+
+\setbeamercolor{section in head/foot}{fg=toxblue}
+%\setbeamercolor{date}{fg=white}
+\setbeamercolor*{normal text}{fg=black,bg=white}
+\setbeamercolor*{alerted text}{fg=black}
+\setbeamercolor*{example text}{fg=black}
+\setbeamercolor*{structure}{fg=black}
+\setbeamercolor{navigation symbols}{fg=toxred}
+\setbeamercolor{navigation symbols}{fg=toxred}
+
+\setbeamertemplate{itemize item}{\color{toxblue}$\blacksquare$}
+\setbeamertemplate{itemize subitem}{\color{toxblue}$\blacktriangleright$}
+
+\providecommand\insertframetitle{}
+\defbeamertemplate*{headline}{myFooter}{\insertframetitle}
+
+
+\setbeamertemplate{headline}{
+	\begin{picture}(0,0)
+	\color{toxblue}{
+	% 1px spacing
+		\put(0.1,-3.835){\line(1,0){400}}
+
+	% Logo
+		\put(310, 0){\includegraphics[scale=0.15]{logo_large.png}}
+
+	% Sectiontitle
+		\put(10,5){\color{tox_lightgrey}{
+				\normalsize \textbf{\insertframetitle}
+				}
+		}
+		\put(9.4,5.5){\color{tox_grey}{
+				\normalsize \textbf{\insertframetitle}
+				}
+		}
+
+	}
+	\end{picture}
+		\begin{beamercolorbox}[wd=.850005\paperwidth, ht=9ex, dp=1ex, left]{}
+			\hspace{2mm}
+				\vspace{1.5mm}	
+		\end{beamercolorbox}
+		\hfill
+}
+
+\newcommand{\setfooterfull}[1]{
+	\setbeamertemplate{footline}{
+
+		% On Agenda (TOC)-Page no sections
+		\ifthenelse{\equal{#1}{true}}{}{
+			\setbeamercolor{mini frame}{fg=white, bg=white}
+			\setbeamercolor{section in head/foot}{fg=white, bg=white}
+		}
+
+		\vskip-100pt
+		\insertnavigation{0.985\paperwidth}{}{}
+		\begin{picture}(0,0)
+		\put(-1,9.6){\color{toxblue}{\line(1,0){2000}}}
+		\end{picture}
+		\leavevmode	
+		\hbox{%
+			\begin{beamercolorbox}[wd=0.25\paperwidth,ht=4ex,dp=1ex,left]{}
+					\color{tox_grey}{
+						\usebeamerfont{author in head/foot}\hspace{2mm}\insertdate
+						\vspace{0.5mm}
+					}
+				\end{beamercolorbox}
+
+
+				\begin{beamercolorbox}[wd=0.500003\paperwidth,ht=4ex,dp=1ex,center]{}
+					\color{tox_grey}{
+						\usebeamerfont{author in head/foot}\hspace{2mm} \insertshortauthor: \insertshorttitle \hspace{2mm}
+						\vspace{0.5mm}
+					}
+				\end{beamercolorbox}
+
+				\begin{beamercolorbox}[wd=0.25\paperwidth,ht=4ex,dp=1ex,right]{}
+					\color{tox_grey}{
+						\usebeamerfont{author in head/foot} \insertframenumber/\inserttotalframenumber \hspace{5mm}
+						\vspace{0.5mm}
+					}
+				\end{beamercolorbox}
+		}
+	}
+}
+
+\newcommand{\setfooterempty}{
+
+	\setbeamertemplate{footline}{
+		\begin{picture}
+			(0,0)
+			\put(-1,12.3){\color{toxblue}{\line(1,0){2000}}}
+		\end{picture}			
+	}
+}
+
+\setbeamertemplate{frametitle}{}
+\setbeamercovered{transparent}

tox.tex

@@ -0,0 +1,178 @@
+\documentclass{mybeamer}
+\usepackage{tabularx}
+\usepackage{tikz}
+\usepackage{ulem}
+
+% Set title, date, etc.
+\title{Tox}
+\subtitle{Messaging on the GNU Internet}
+\author{Simon Levermann (sonOfRa)}
+\institute{The Tox Team}
+\date{28/12/2013}
+
+
+\begin{document}
+    \setfooterempty
+    \begin{frame}
+    \titlepage
+    \end{frame} 
+
+    \setfooterfull{false}
+    \setcounter{framenumber}{0}
+    \begin{frame}
+    \frametitle{Outline}
+    \tableofcontents
+    \end{frame}
+
+    \setfooterfull{true}
+    \section{What is Tox?}
+    \begin{frame}
+        \frametitle{The what}
+        \begin{block}{What is Tox?}
+            \begin{itemize}
+                \item FOSS Chat and A/V-Chat protocol (GPLv3)
+                \item Decentralized architecture
+                \item Configuration free
+                \item Skype Replacement
+            \end{itemize}
+        \end{block}
+    \end{frame}
+
+    \section{Why are we doing it?}
+    \begin{frame}
+        \frametitle{The why}
+        \begin{block}{Why are we doing this?}
+            \begin{itemize}
+                \item We want a free(as in Freedom) and secure alternative for Skype
+                \item \textit{''We don't want to be the next secure chatting program, we want to be the next secure chatting program that people actually use.''} - Someone on IRC
+                \item Current secure chat programs aren't easy to use, at least not for \sout{our parents and grandparents} normal people
+            \end{itemize}
+        \end{block}
+    \end{frame}
+
+    \section{Features}
+    \subsection{}
+    \begin{frame}
+        \frametitle{Completed}
+        \begin{block}{Completed}
+            \begin{itemize}
+                \item Text messaging
+                \item Groupchats
+				\item File sending
+                \item Audio/Video (will be encrypted soon, almost ready to merge as of 23/12/2013)
+                \item Several clients for GNU/Linux, OSX and Windows, Qt, GTK, ncurses
+                \item PyTox, the Python binding for Tox
+            \end{itemize}
+        \end{block}
+    \end{frame}
+    \subsection{}
+    \begin{frame}
+        \frametitle{Planned and in Progress}
+        \begin{block}{Planned and in Progress}
+            \begin{itemize}
+                \item Better NAT support (sometimes symmetric NATs are problematic)
+                \item Implement A/V in actual clients, not just as an API
+                \item jToxcore, the Java binding for Tox
+                \item Android client (depends on jToxcore)
+            \end{itemize}
+        \end{block}
+    \end{frame}
+    \section{The technical stuff}
+
+    \subsection{}
+    \begin{frame}
+        \frametitle{Architecture}
+        \begin{block}{Architecture}
+            \begin{itemize}
+                \item Tox is only a library, everyone can make their own client
+                \item GPLv3, so clients must also be licensed under the GPL
+                \item Bindings to other languages are partially available (or you can make one yourself)
+            \end{itemize}
+        \end{block}
+    \end{frame}
+    \subsection{}
+    \begin{frame}
+        \frametitle{Crypto}
+        \begin{block}{Cryptography}
+            \begin{itemize}
+                \item We are building upon existing cryptography, not inventing our own
+                \item We use libsodium, which is a portable fork of NaCl(Salt)
+                \item Public/Private-Key based, public keys are UserIDs
+                \item crypto\_box: \textit{curve25519xsalsa20poly1305}
+                \begin{itemize}
+                	\item curve25519 for Key exchange
+                    \item xsalsa20 for encryption
+                    \item poly1305 for message authentication
+                \end{itemize}
+
+            \end{itemize}
+        \end{block}
+    \end{frame}
+
+    \subsection{}
+    \begin{frame}
+        \frametitle{Network}
+        \begin{block}{Network Architecture}
+                \begin{itemize}
+                \item Peer-to-Peer chatting, no central servers
+                \item Use UDP for connections
+                \begin{itemize}
+                    \item UDP was the obvious choice for P2P
+                    \item 'Lossless UDP' for reliability in messaging
+                    \item UDP hole-punching for getting through NATs
+                \end{itemize}
+            \end{itemize}
+        \end{block}
+    \end{frame}
+    \begin{frame}
+        \frametitle{DHT}
+        \begin{block}{DHT Design}
+            \begin{itemize}
+                \item Use a DHT to store peer information
+                \item Since public keys are IDs, map a public key to an IP-Address
+                \item Every client stores the mathematically closest nodes by XORing public keys
+                \item Since there are no trackers like in Bittorrent, use Bootstrap nodes for initial login
+                \item Bootstrap nodes are clients that don't do messaging, only DHT work, but any client can serve as a bootstrap node
+            \end{itemize}
+        \end{block}
+    \end{frame}
+
+    \subsection{}
+    \begin{frame}
+        \frametitle{Problems}
+        \begin{block}{Problems}
+            \begin{itemize}
+                \item An attacker that controls a large portion of DHT nodes can easily log the social graph (solution is on the way, draft not done at time of writing)
+                \item Friend request spam (solved)
+            \end{itemize}
+        \end{block}
+        \begin{block}{Solution?}
+        	\begin{itemize}
+        	\item \url{https://github.com/irungentoo/ProjectTox-Core/blob/master/docs/Prevent_Tracking.txt}
+            \item Problem: This is new, I have not read it yet!
+        	\end{itemize}
+        \end{block}
+    \end{frame}
+
+    \section{Contribute}
+        \subsection{}
+        \begin{frame}
+            \frametitle{GitHub}
+            \begin{block}{GitHub}
+                \begin{itemize}
+                    \item We're on GitHub!
+                    \item The core is at \url{https://github.com/irungentoo/ProjectTox-Core/}
+                    \item The subprojects are hosted in the Tox Organization at \url{https://github.com/Tox/}
+                \end{itemize}
+            \end{block}
+        \end{frame}
+
+        \subsection{}
+        \begin{frame}
+            \frametitle{Questions?}
+            \begin{block}{Getting in touch}
+            Most of our communication happens in the channels \#tox-dev and \#tox on Freenode IRC
+            \end{block}
+        \end{frame}
+
+\end{document}