
diff -r 2555552d2c05 -r 9961bbb8c8af slides/slides02.tex
--- a/slides/slides02.tex	Tue Sep 30 11:34:21 2014 +0100
+++ b/slides/slides02.tex	Tue Sep 30 12:44:16 2014 +0100
@@ -17,6 +17,8 @@
 % first cyber attack
 %http://investigations.nbcnews.com/_news/2013/03/18/17314818-cyberattack-on-florida-election-is-first-known-case-in-us-experts-say
 
+\newcommand{\bl}[1]{\textcolor{blue}{#1}}  
+
 \begin{document}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -125,8 +127,9 @@
 
 \begin{itemize}
 \item in Unix systems: \texttt{hash(salt + password)}, or even
-\texttt{hash$^{\texttt{1500}}$(salt + password)}
-
+\texttt{hash$^{\texttt{1500}}$(salt + password)}\smallskip\pause
+\item Bruce Schneier in cases messages are long: \\
+instead of \texttt{m $\mapsto$ hash(m)},\\ use \texttt{m $\mapsto$ hash(hash(m) + m)}
 \end{itemize}
 \end{frame}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  
@@ -145,6 +148,19 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\begin{frame}[c]
+\frametitle{E-Voting}
+
+\begin{bubble}[9cm]
+``Any electronic voting system should provide at least the same
+security, privacy and transparency as the system it replaces.''
+\end{bubble}
+
+\end{frame}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \begin{frame}[t]
 \frametitle{Voting as Security Problem}
 




