start Q3

1 files changed, 5 insertions, 13 deletions

diff --git a/csci5271/hw2/ex2-template.tex b/csci5271/hw2/ex2-template.tex
index 96eca28..7d81f41 100644
--- a/csci5271/hw2/ex2-template.tex
+++ b/csci5271/hw2/ex2-template.tex
@@ -4,20 +4,9 @@
 
 \begin{document}
 \begin{center}
-CSci 5271 Fall 2021 Exercise Set 2 answers template
+CSci 5271 Fall 2021 Exercise Set 2 answers 
 \end{center}
 
-Please use this as a template for submitting your answers to
-exercise set 2. (This template is available from the course web site
-in either LaTeX or Google Doc formats). Type your answers on each page
-after the question prompt (you can use additional pages, though that
-we expect that would rarely be required). If you can write all your
-answers electronically, please do so and export to a PDF to submit.
-If you would prefer to hand-draw figures, you can also submit a scan.
-
-Please ensure that the names and UMN email addresses of all of your
-group members are recorded on Gradescope, and also confirm them below:
-
 \vspace{10pt}
 
 \begin{tabular}{|p{2.6in}|p{2.6in}|}\hline
@@ -37,7 +26,8 @@ Example input that causes a buffer overflow:
 A list of invariants for the transform function:
 \begin{itemize}
     \item bp is increased by one for every opening brace or bracket and goes down by one for every closing brace or bracket. (this gets violated)
-    \item 
+    \item The brace/bracket level is equal to the number of opening braces or brackets respectively minus the number of closing brackets.
+    \item The rotation level is increased by 13 for every opening curly brace, resetting to 0 when equal to 26.
 \end{itemize}
 The change that needs to be made is to make sure that bp decrements when there is an opening curly brace regardless of the rotate amount.
 
@@ -53,6 +43,7 @@ This code is an example of a use-after-free exploit. The way this exploit works
 \newpage
 
 Question 3 (reference monitor without hardware support, 15 pts):
+One way to to implement a software reference monitor is to introduce Mandatory Access Control. 
 
 \newpage
 
@@ -65,4 +56,5 @@ The program also implies that the user running the program is actually the real
 
 Question 5 (Multilevel-secure classification, 20 pts):
 
+
 \end{document}