--- a/hws/hw01.tex	Tue Sep 26 12:03:24 2017 +0100
+++ b/hws/hw01.tex	Tue Sep 26 12:10:41 2017 +0100
@@ -34,7 +34,7 @@
 
 \noindent
 Think of ways how you can cheat in this exam? How would you defend
-against such cheats.
+against such cheats?
 
 \item Here is another puzzle where you can practice thinking
       like an attacker: Consider modern car keys. They
@@ -53,34 +53,9 @@
       by. How can this transmitted data be abused, if not
       properly encrypted? If you identified an abuse, then how
       would you encrypt the data so that such an abuse is
-      prevented. Hint: Consider the fact that every person
+      prevented? Hint: Consider the fact that every person
       uses approximately 120l of water every day.
 
-%\item And another one: Nowadays everybody and their
-%      grandmother seems to be scared about a bomb going off at
-%      a big event, say a football game. To mitigate such a
-%      threat, you order expensive metal detectors and hire a
-%      security team that will staff these detectors at each
-%      game. Think whether people are really safer at a
-%      football game with metal detectors or not. Hint: People
-%      certainly might *\emph{feel}* safer by going through
-%      metal detectors, but the question is whether they
-%      *\emph{are}* safer. Hint: Consider how people arrive at
-%      such an event: within a relative short amount of time,
-%      thousands, if not more, spectators will arrive at your
-%      football game.
-
-%% CYA security - cover-your-ass
-% It's an attitude I've seen before: "Something must 
-% be done. This is something. Therefore, we must do it." 
-% Never mind if the something makes any sense or not.
-    
-
-
-
-%\item Imagine there was recently a break in where computer criminals
-%  stole a large password database containing 
-
 \item Explain what hashes and salts are. Describe how they can be used
   for ensuring data integrity and storing password information.