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diff -r 16cbb47ce0b9 -r 95e14b2dbc94 hws/hw04.tex
--- a/hws/hw04.tex	Sat Oct 18 02:17:51 2014 +0100
+++ b/hws/hw04.tex	Sat Oct 18 23:07:50 2014 +0100
@@ -27,10 +27,8 @@
 \item What does it mean that the program \texttt{passwd} has the
   \texttt{setuid} bit set? Why is this necessary?
 
-
-\item In the context of which information flow should be protected, explain briefly the 
-differences between the {\it read rule} of the Bell-LaPadula access
-policy and the Biba access policy. Do the same for the {\it write rule}.
+\item With which permissions does the program \texttt{login}
+normally have and why is this needed?
 
 \item A Unix directory might look as follows:
 
@@ -70,6 +68,9 @@
 \end{tabular}
 \end{center}
 
+\item In the context of which information flow should be protected, explain briefly the 
+differences between the {\it read rule} of the Bell-LaPadula access
+policy and the Biba access policy. Do the same for the {\it write rule}.
 
 \end{enumerate}
 




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