remote voting: what can we do? - usenix · let's talk about remote voting tuesday, august 13,...
TRANSCRIPT
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Remote Voting:What Can We Do?
David Wagner
Tuesday, August 13, 13
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voting technology is in a period of stasis
Tuesday, August 13, 13
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voting technology is in a period of stasis
...now's the perfect time to innovate!
Tuesday, August 13, 13
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I hope to inspire you,by sharing exciting research opportunities
Tuesday, August 13, 13
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let's talk about remote voting
Tuesday, August 13, 13
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Tuesday, August 13, 13
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vote-by-mail
Tuesday, August 13, 13
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Tuesday, August 13, 13
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40-50% of voters vote by mail,in several Western states
Tuesday, August 13, 13
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What can we do to improve vote-by-mail?
Tuesday, August 13, 13
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Tuesday, August 13, 13
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not-quite-remote voting
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Tuesday, August 13, 13
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it might be time to re-considerthe precinct model
Tuesday, August 13, 13
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it might be time to re-considerthe precinct model
imagine if you were only allowed to dropoff outbound mail at your home post office
Tuesday, August 13, 13
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Can we enable voters to vote atany polling place of their choice?
Tuesday, August 13, 13
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voters would like to be able to research candidatesand make their choices, at a time and place oftheir convenience
Tuesday, August 13, 13
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voters would like to be able to research candidatesand make their choices, at a time and place oftheir convenience (e.g., on their phones/computers)
Tuesday, August 13, 13
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voters would like to be able to research candidatesand make their choices, at a time and place oftheir convenience
... but voting over the Internet is risky.
(e.g., on their phones/computers)
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Can we establish a technology foundation for pre-voting?
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Tuesday, August 13, 13
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accessibility
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Tuesday, August 13, 13
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15% of US voting-age have disabilities(≥ 30 million eligible voters)
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45-72% of polling places haveimpediments to access
Source: GAO 2009.
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poll workers often have difficultysetting up accessible voting machine
Tuesday, August 13, 13
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Can we help disabled voters vote from home?
Tuesday, August 13, 13
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Tuesday, August 13, 13
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overseas voting
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Tuesday, August 13, 13
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there are 6 million eligible US voters abroad(civilian + military)
Tuesday, August 13, 13
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for ≈ 25% of overseas voterswho wanted and tried to vote,
their vote didn't count.
Source: OVF 2013.
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Tuesday, August 13, 13
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Tuesday, August 13, 13
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Tuesday, August 13, 13
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Tuesday, August 13, 13
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Tuesday, August 13, 13
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15% of overseas votersreturned their ballot electronically
(email, fax, or web – no paper).
Source: OVF 2013.
Tuesday, August 13, 13
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Can we help overseas and military voters?
Tuesday, August 13, 13
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it is time to study how tomake Internet voting work.
Tuesday, August 13, 13
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In 2004
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Internet votingis not safe!
In 2004
Tuesday, August 13, 13
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Today
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Let's try to makeInternet voting safeenough for overseas
voters
Today
Tuesday, August 13, 13
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is it even possible?
Tuesday, August 13, 13
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‟if only voting weren't anonymous,it would be easy”
Tuesday, August 13, 13
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‟if only voting weren't anonymous,it would be easy”
just publish everyone's vote
Tuesday, August 13, 13
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‟if only voting weren't anonymous,it would be easy”
just publish everyone's vote
Anne:Grace:
Charlie:....
vanillachocolatevanilla
Tuesday, August 13, 13
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overseas ballots already aren't 100% anonymous
Tuesday, August 13, 13
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publish everyone's vote
10923:92301:46388:
....
vanillachocolatevanilla
Tuesday, August 13, 13
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publish everyone's vote
10923:92301:46388:
....
vanillachocolatevanilla
trackingnumber
Tuesday, August 13, 13
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publish everyone's vote
10923:92301:46388:
....
vanillachocolatevanilla
trackingnumber
vote
Tuesday, August 13, 13
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problem solved
Tuesday, August 13, 13
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problem solved?
Tuesday, August 13, 13
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wait a minute:does this provide privacy?
Tuesday, August 13, 13
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wait a minute:does this provide privacy?
No!
Tuesday, August 13, 13
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10923:92301:46388:
President: Obama, Mayor: Brown, ...President: Romney, Water District 3: ...President: Romney, School District 7: ...
Tuesday, August 13, 13
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if Alice is the only overseas voter witha particular ballot style, she has no privacy.
10923:92301:46388:
President: Obama, Mayor: Brown, ...President: Romney, Water District 3: ...President: Romney, School District 7: ...
Tuesday, August 13, 13
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if Alice is the only overseas voter witha particular ballot style, she has no privacy.
10923:92301:46388:
President: Obama, Mayor: Brown, ...President: Romney, Water District 3: ...President: Romney, School District 7: ...
in one county: 4% of voters would be uniquely identified28% of voters would have anonymity set < 20
Tuesday, August 13, 13
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one tracking number isn't safe
Tuesday, August 13, 13
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one tracking number isn't safe
so give 'em two!
Tuesday, August 13, 13
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10923:92301:46388:75190:23209:44852:
President: ObamaWater District 3: JonesSchool District 7: SmithMayor: BrownPresident: RomneyPresident: Romney
Tuesday, August 13, 13
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10923:92301:46388:75190:23209:44852:
President: ObamaWater District 3: JonesSchool District 7: SmithMayor: BrownPresident: RomneyPresident: Romney
Anne'strackingnumbers
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another approach:end-to-end (open-audit) cryptographic schemes
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another approach:remotely-supervised remote voting
See: Juan Gilbert's research.
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there might be hopefor making Internet voting auditable
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caveat:
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caveat:
usability
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caveat:
usability > auditability
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caveat:
usability > auditability > security
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caveat:
we don't know how tobuild a secure bulletin board.
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suppose 20% of voters verify their voteagainst the public website (BB), right after voting.
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suppose 20% of voters verify their voteagainst the public website (BB), right after voting.
if website is hacked,
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suppose 20% of voters verify their voteagainst the public website (BB), right after voting.
if website is hacked, it can change everyone's votes
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suppose 20% of voters verify their voteagainst the public website (BB), right after voting.
if website is hacked, it can change everyone's votes
after voters verify them but before they're counted.
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ok, so some crypto geeks needverify their votes didn't change.
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ok, so some crypto geeks needverify their votes didn't change.
if (voter == "Josh Benaloh") do_not_cheat = True
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public website (BB) knows who you are,and can show something different to each person
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Can we build a public bulletin board thatis worthy of our trust?
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Can we make Internet voting safe enoughfor overseas, military, and/or disabled voters?
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Internet voting that's both auditable and usable?
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Will voters be able to audit their vote?And, will they actually do it?
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do I know how to make Internet voting safe today?
should we deploy Internet voting today?
should we research it?
No.
No.
Yes!
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Can we make Internet voting safe enoughfor overseas, military, and/or disabled voters?
We have to try!
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