diff -r a0aebea668f9 -r 5031e7778fdb slides/slides01.tex
--- a/slides/slides01.tex	Wed Sep 17 11:47:11 2014 +0100
+++ b/slides/slides01.tex	Mon Sep 22 22:16:17 2014 +0100
@@ -11,6 +11,11 @@
 % beamer stuff 
 \renewcommand{\slidecaption}{APP 01, King's College London}
 
+\lstset{language=Scala,
+        style=mystyle,
+        numbersep=0pt,
+        numbers=none,
+        xleftmargin=0mm}
 
 \begin{document}
 
@@ -35,7 +40,7 @@
   \end{tabular}
   \end{center}
 \end{frame}
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%     
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%     
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \begin{frame}
@@ -128,14 +133,18 @@
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \begin{frame}
-\frametitle{\begin{tabular}{@ {}c@ {}}This is a Misconception!\end{tabular}}
+\frametitle{This is a Misconception!}
 
 \begin{center}
 \includegraphics[scale=0.55]{pics/cryptographic-small.png}
 \end{center}
 
+\centering
+\begin{bubble}[9cm]
+\small
 There is some consensus that the NSA can probably not
 brute-force magically better than the ``public''. 
+\end{bubble}
 
 \end{frame}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%     
@@ -161,7 +170,6 @@
 \end{frame}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%     
 
-
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \begin{frame}[c]
 
@@ -260,7 +268,30 @@
 \end{frame}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%   
 
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\begin{frame}[c]
+\frametitle{Secure Systems}
 
+For a secure system, four requirements need to come 
+together:
+
+\begin{itemize}
+\item {\bf Policy}\\
+  {\small What is supposed to be achieved?}
+\item {\bf Mechanism}\\
+  {\small Cypher, access controls, tamper resistance} 
+\item {\bf Assurance}\\
+  {\small The amount of reliance you can put on the mechanism.}
+\item {\bf Incentive}\\
+  {\small The motive that the people guarding and maintaining the 
+  system have to do their job properly, and also the motive 
+  that the attackers have to try to defeat your policy.}
+\end{itemize}
+
+
+
+\end{frame}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%   
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \begin{frame}[c]
@@ -328,7 +359,7 @@
 \begin{textblock}{1}(4.5,9.9)
 \begin{tabular}{c}
 \includegraphics[scale=0.16]{pics/rman.png}\\[-1mm]
-\small costumer / you
+\small custumer / you
 \end{tabular}
 \end{textblock}