From ac334954e64b192677de7b5004c21ca2a2cf2844 Mon Sep 17 00:00:00 2001
From: Sascha Tommasone <sascha@tommasone.me>
Date: Sat, 25 May 2024 10:20:51 +0200
Subject: [PATCH] [Assignment-4] added protocol scheme for mitm

---
 .../abgabe.tex                                | 32 ++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/Assignment 4 - Protokollsicherheit (Praxis)/abgabe.tex b/Assignment 4 - Protokollsicherheit (Praxis)/abgabe.tex
index 050f869..1f54af8 100644
--- a/Assignment 4 - Protokollsicherheit (Praxis)/abgabe.tex	
+++ b/Assignment 4 - Protokollsicherheit (Praxis)/abgabe.tex	
@@ -11,6 +11,7 @@
 \usepackage{algorithm}
 \usepackage{algpseudocode}
 \usepackage{xifthen}
+\usepackage{xcolor}
 \usepackage[a4paper,lmargin={2cm},rmargin={2cm},tmargin={2.5cm},bmargin = {2.5cm},headheight = {4cm}]{geometry}
 \usepackage{amsmath,amssymb,amstext,amsthm}
 \usepackage[shortlabels]{enumitem}
@@ -22,6 +23,7 @@
 
 \usetikzlibrary{shapes, arrows, calc, automata, arrows.meta, positioning,decorations.pathmorphing,backgrounds,decorations.markings,decorations.pathreplacing, graphs}
 \usetikzlibrary{matrix,shapes,arrows,positioning,chains, calc}
+\usetikzlibrary{arrows.meta,matrix,shapes,arrows,positioning,chains, calc}
 
 \tikzset{% 
     initial text={},
@@ -44,6 +46,24 @@
 \newenvironment{subsubexercises}{\begin{enumerate}[i), font=\bfseries, wide, labelindent=0pt]}{\end{enumerate}}
 
 % Makros
+% MACRO for whole diagram 
+% #1: total width of diagram 
+% #2: total height of diagram 
+% #3: nodes, paths, ... 
+\newcommand\protocolflow[3]{ 
+\begin{center} 
+\begin{tikzpicture}[x=#1cm,y=#2cm] 
+#3 
+\end{tikzpicture} 
+\end{center} 
+}
+% MACRO for path line shortening 
+% #1: start coordinate 
+% #2: target coordinate 
+% #3: text above arrow 
+\newcommand{\package}[3]{ 
+\path[*-{latex[width=5pt, length=5pt]}] (#1) edge node [above] {#3} (#2); 
+}
 
 % Anpassen --> %
 \author{Benjamin Haschka\\Sascha Tommasone\\Paul Zinselmeyer}
@@ -52,7 +72,17 @@
 
 \begin{document}
 \begin{exercise}[Warm Up]{2.1.}
-
+\protocolflow{1.5}{0.75}{ 
+ \node[] (A) at (0,0) {\textbf{Alice}};
+ \node[] (E) at (3,0) {\textbf{Eve}};
+ \node[] (S) at (7,0) {\textbf{Server}}; 
+ \node[] (B) at (10,0) {\textbf{Bob}};
+ \package{0,-1}{3,-1}{$Alice, Bob$}
+ \package{3,-2}{7,-2}{$Alice, \textcolor{red}{Eve}$}
+ \package{7,-3}{0,-3}{$\{ K \}_{K_{AT}}, \{ K \}_{\textcolor{red}{K_{ET}}}$}
+ \package{0,-4}{3,-4}{$Trent, Alice, \{ K \}_{\textcolor{red}{K_{ET}}}$}
+ \package{3,-5}{0,-5}{$\{ Hello Alice! \}_K$}
+}
 \end{exercise}
 
 \newpage