--- a/hws/hw05.tex	Tue Dec 09 07:41:28 2014 +0000
+++ b/hws/hw05.tex	Tue Dec 09 12:09:33 2014 +0000
@@ -34,7 +34,7 @@
 $A \to B: K_{AB}$
 \end{center}
 
-\item Nonces are unpredicatble random numbers used in protocols? 
+\item Nonces are unpredicatble random numbers used in protocols.
 Consider the following protocol
 
 \begin{center}