Untraceable electronic mail, return addresses, and digital pseudonyms
Communications of the ACM
A practical voter-verifiable election scheme
ESORICS'05 Proceedings of the 10th European conference on Research in Computer Security
Paperless independently-verifiable voting
VoteID'11 Proceedings of the Third international conference on E-Voting and Identity
Vote casting in any preferred constituency: a new voting channel
Vote-ID'13 Proceedings of the 4th international conference on E-Voting and Identity
Vote-ID'13 Proceedings of the 4th international conference on E-Voting and Identity
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PunchScan is a precinct-read optical-scan balloting system that allows voters to take their ballot with them after scanning. This does not violate the secret ballot principle because the ballots cannot be read without secret information held by the distributed authority in charge of the election. In fact, this election authority will publish the ballots for everyone to see, allowing voters whose ballots were incorrectly omitted to complain. PunchScan vote-counting is performed in private by the election authority – who uses their secret information to decode the ballots – but is verified in public by an auditor.In this paper we describe how and why PunchScan works. We have kept most of the description at an outline level so that it may be used as a straw model of a cryptographic voting system.