64 \begin{figure}[t]

    64 \begin{figure}[t]

    65 \begin{center}

    65 \begin{center}

    66 \includegraphics[scale=0.15]{../pics/rsa_attack_eng.jpg}

    66 \includegraphics[scale=0.15]{../pics/rsa_attack_eng.jpg}

    67 \end{center}

    67 \end{center}

    68 \caption{From a dodgy webpage about modern car theft. Note the

    68 \caption{From a dodgy webpage about modern car theft. Note the

    70 \end{figure}

    70 \end{figure}

    71 

    71 

    72 

    72 

    73 But there are many more such protocols we like to study.

    73 But there are many more such protocols we like to study.

    74 Another example is Wifi---you might sit at a Starbucks and

    74 Another example is Wifi---you might sit at a Starbucks and