diff -r a654b1912217 -r 977c3ac60d62 hws/hw06.tex
--- a/hws/hw06.tex	Thu Oct 27 14:00:58 2016 +0100
+++ b/hws/hw06.tex	Thu Oct 27 15:42:23 2016 +0100
@@ -4,7 +4,7 @@
 
 \begin{document}
 
-\section*{Homework 6 (Zero-Knowledge Proofs)}
+\section*{Homework 6}
 
 \HEADER
 
@@ -19,14 +19,14 @@
 \item In which situations does it make sense to install
       invalid (self-signed) certificates?
 
-\item Zero-knowledge protocols depend on three main properties called
-  completeness, soundness and zero-knowledge.  Explain what they mean?
+%\item Zero-knowledge protocols depend on three main properties called
+%  completeness, soundness and zero-knowledge.  Explain what they mean?
 
-\item Why do zero-knowledge protocols require an NP-problem as building
-  block?
+%\item Why do zero-knowledge protocols require an NP-problem as building
+%  block?
 
-\item Why is it a good choice in a ZKP to flip a coin when requesting a 
-  proof from the person who knows the secret?
+%\item Why is it a good choice in a ZKP to flip a coin when requesting a 
+%  proof from the person who knows the secret?
 
 \item \POSTSCRIPT
 \end{enumerate}