\begin{frame}
    \frametitle{Transportwegverschlüsselung}
    \begin{center}
      \includegraphics[height=0.8\textheight]{img/enc-transport.png}
    \end{center}
\end{frame}

\begin{frame}
    \frametitle{SSL im Browser}
    \begin{center}
      \includegraphics[height=0.7\textheight]{img/ssl_special.png}
    \end{center}
\end{frame}

\begin{frame}
    \frametitle{Ungültiges Zertifikat}
    \begin{center}
	\includegraphics[height=0.7\textheight]{img/ssl_badcert.png}
    \end{center}
\end{frame}