From 68a4738e430f586fdf9447956295c1de68b324a3 Mon Sep 17 00:00:00 2001
From: Matt Strapp <matt@mattstrapp.net>
Date: Wed, 24 Nov 2021 16:33:01 -0600
Subject: effort: less than 0

Signed-off-by: Matt Strapp <matt@mattstrapp.net>
---
 csci5271/hw3/ex3-template.tex | 86 +++++++++++++++++++++++++++++++++++++++++++
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+\documentclass[11pt]{article}
+\usepackage{fullpage}
+\usepackage{times}
+
+\begin{document}
+\begin{center}
+CSci 5271 Fall 2021 Exercise Set 3 answers template
+\end{center}
+
+Please use this document as a template for submitting your answers to
+exercise set 3. (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
+Name & UMN email address\\\hline
+Matt Strapp & strap012@umn.edu\\\hline 
+
+\end{tabular}
+
+\vspace{10pt}
+
+Question 1 (Caesar's block cipher, 30 pts):
+
+Part 1(a), CCEA2 $>$ CCEA1?
+
+No. An 8-bit block size can be easily broken, regardless of key size.
+
+\vspace{0.5in}
+
+Part 1(b), any 8-bit-block block cipher
+
+
+\newpage
+
+Part 1(c), ECB mode
+
+\vspace{1.5in}
+
+Part 1(d), CTR mode
+
+\vspace{1.5in}
+
+Part 1(e), CBC mode
+
+\vspace{1.5in}
+
+Part 1(f), OFB mode
+
+\newpage
+
+Part 1(g), weakness of CCEA3
+
+\newpage
+
+Question 2 ((Mis-)using message authentication codes, 26 pts):
+
+Part 2(a), CBC-MAC
+
+\vspace{3in}
+
+Part 2(b), hashing and AES-CTR
+
+\newpage
+
+Question 3 (Protocol (an)droids, 24 pts):
+
+Part 3(a), simpler attack
+
+\vspace{3in}
+
+Part 3(b), second attack
+
+\newpage
+
+Question 4 (Hashing and signing, 20 pts):
+
+\end{document}
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