1 files changed, 69 insertions, 0 deletions
diff --git a/slides/2021-aha/img/ct.tex b/slides/2021-aha/img/ct.tex
new file mode 100644
index 0000000..9ae60c3
--- /dev/null
+++ b/slides/2021-aha/img/ct.tex
@@ -0,0 +1,69 @@
+\begin{tikzpicture}[
+	-latex,
+	entity/.style = {
+		draw = gray!30,
+		thick,
+		rounded rectangle,
+		fill = white,
+		minimum width = 2cm,
+		font = \fontsize{8}{8}\selectfont,
+		text = white,
+	},
+	relation/.style = {
+		draw = none,
+		font = \fontsize{6}{6}\selectfont,
+	},
+	path/.style = {
+		draw,
+		thick,
+		-latex,
+	},
+]
+	\node[entity, fill=darkBlue] (Website) at (0,0) { Website };
+	\node[entity, fill=darkGreen, below=1.5cm of Website] (Browser) {Browser};
+	\node[entity, fill=darkOrange, left=1.5cm of Website] (Log) {Log};
+	\node[entity, fill=darkRed, below=1.5cm of Log] (Monitor) {Monitor};
+
+	% Get certificate and proofs of logging
+	\path[path] (Website) --
+			node[relation, right] {
+				\begin{tabular}{c}
+					Certificate\\
+					Proofs of logging\\
+				\end{tabular}
+			}
+		(Browser);
+	% Verification
+	\path[path, rounded corners]
+		(Browser.180) -|
+		($ (Browser) + (-1.25,-.75) $)
+			node[relation, below]{
+				Verify
+			} -|
+		(Browser.210);
+	
+	% Monitoring
+	\path[path] (Monitor) edge[bend right]
+			node[relation,right]{}
+		(Log);	
+	\path[path] (Log) edge[bend right]
+			node[relation,left]{}
+		(Monitor);
+	\path[path, rounded corners]
+		(Monitor.180) -|
+		($ (Monitor) + (-1.25,-.75) $)
+			node[relation, below]{
+				Mis-issuance?
+			} -|
+		(Monitor.210);
+
+	% Get proofs
+	\path[path, dashed] (Log) --
+			node[relation,above]{Proofs of logging}
+		(Website);
+
+	% Add certificates to log
+	\path[path, dashed] ($ (Log) + (-2,0) $) --
+			node[relation, above] { Certificates }
+		(Log);
+\end{tikzpicture}