hws/hw02.tex
author Christian Urban <christian dot urban at kcl dot ac dot uk>
Mon, 29 Sep 2014 17:43:35 +0100
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\documentclass{article}
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\usepackage{charter}
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\usepackage{hyperref}
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\usepackage{amssymb}
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\begin{document}
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\section*{Homework 2}
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\begin{enumerate}
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\item Voice voting is the method of casting a vote in the `open air' for everyone
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present to hear. Which of the following security requirements do paper ballots 
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satisfy \textbf{better} than voice voting? Check all that apply and give a brief explanation 
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for your decision.
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\begin{itemize}
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\item[$\Box$] Integrity
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\item[$\Box$] Enfranchisement
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\item[$\Box$] Ballot secrecy
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\item[$\Box$] Voter authentication
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\item[$\Box$] Availability
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\end{itemize}
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\item Explain how an attacker can use chain voting in order to influence the outcome of a 
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poll using paper ballots. 
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\item Which of the following mechanisms help with defending against chain voting? Check all 
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that apply. Give a brief reason for each defence that mitigates chain voting attacks.
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\begin{itemize}
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\item[$\Box$] Using a glass ballot box to make it clear there are no
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  ballots in the box before the start of the election.
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\item[$\Box$] Distributing ballots publicly before the election.
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\item[$\Box$] Checking that a voter's ID (drivers license, passport) matches the voter.
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\item[$\Box$] Each ballot has a unique ID. When a voter is given a ballot, the ID is recorded. When the voter submits his or her ballot, this ID is checked against the record.
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\end{itemize}
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\item What is the main difference between online banking and e-voting? 
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(Hint: Why is the latter so hard to get secure?)
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\end{enumerate}
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\end{document}
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%%% Local Variables: 
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%%% mode: latex
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%%% TeX-master: t
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%%% End: