\usepackage{amssymb}

\item Voice voting is the method of casting a vote in the `open air' for everyone

present to hear. Which of the following security requirements do paper ballots 

satisfy better than voice voting? Check all that apply and give a brief explanation 

for your decision.

\item[$\Box$] Integrity\bigskip\bigskip

\item[$\Box$] Enfranchisement\bigskip\bigskip

\item[$\Box$] Ballot secrecy\bigskip\bigskip

\item[$\Box$] Voter authentication\bigskip\bigskip

\item[$\Box$] Availability\bigskip\bigskip

\item Explain how an attacker can use chain voting in order to influence the outcome of a 

poll using paper ballots. 

\item Which of the following mechanisms help with defending against chain voting? Check all 

that apply. Give a brief reason for each defence that mitigates chain voting attacks.

\begin{itemize}

\item[$\Box$] Using a glass ballot box to make it clear there are no ballots in the box before the start of the election.

\item[$\Box$] Distributing ballots publicly before the election.

\item[$\Box$] Checking that a voter's ID (drivers license, passport) matches the voter.

\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.

\end{itemize}