--- a/hws/hw06.tex	Sat Nov 05 17:09:05 2016 +0000
+++ b/hws/hw06.tex	Sat Nov 05 17:28:18 2016 +0000
@@ -10,14 +10,15 @@
 
 \begin{enumerate}
 \item Explain briefly the purpose of the certification authority in
-the public-private key encryption scheme.
+  the public-private key encryption scheme.
 
 \item Explain briefly what is meant by a certification authority
   becoming ``too big to fail'' when it has issued a large number 
   of certificates.
 
 \item In which situations does it make sense to install
-      invalid (self-signed) certificates?
+  invalid (self-signed) certificates?
+
 
 %\item Zero-knowledge protocols depend on three main properties called
 %  completeness, soundness and zero-knowledge.  Explain what they mean?