VERICONDOR
VERICONDOR
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维康多
DOI:
10.1145/3488932.3497758
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Harrison L
中科院分区:
文献类型:
--
作者:
Harrison L
Condorcet voting, first proposed by Marquis de Condorcet in the 18th century, chooses a winner of an election as one that defeats every other candidate by a simple majority. According to Condorcet's criterion, a Condorcet winner is the socially optimal choice in a multi-candidate election. However, despite the crucial importance of this voting system in social-choice theory, it has not been widely used in practical applications. This is partly due to the complex tallying procedure, and also the fact that several candidates may form a tie. Existing systems that provide online Condorcet voting services in the real world try to speed up the tallying process by collecting and tallying Condorcet ballots in a digital form. However, they require voters to completely trust the server. In this paper, we propose VERICONDO, the first end-to-end verifiable Condorcet e-voting system without any tallying authorities. Our system allows a voter to fully verify the tallying integrity without involving any trustworthy tallying authorities and provides strong protection of the ballot secrecy. One main challenge in our work lies in proving the well-formedness of an encrypted ballot while being able to tally the ballots in a publicly verifiable yet privacy-preserving manner. We overcome this challenge by adopting a pairwise comparison matrix and applying a novel vector-sum technique to achieve exceptional efficiency. The overall computational cost per ballot is O (n2) where n is the number of candidates. This is probably the best that one may hope for given the use of a n x n matrix to record a Condorcet ballot. In case of a tie, we show how to apply known Condorcet methods to break the tie in a publicly verifiable manner. Finally, we present a prototype implementation and benchmark performance to show the feasibility of our system.
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DOI:
--
发表时间:
2008
期刊:
--
影响因子:
--
作者:
D. Chaum;R. Carback;Jeremy Clark;A. Essex;Stefan Popoveniuc;R. Rivest;P. Ryan;Emily Shen;A. Sherman
通讯作者:
A. Sherman
DOI:
--
发表时间:
2019
期刊:
ARES
影响因子:
--
作者:
Samiran Bag;M. A. Azad;F. Hao
通讯作者:
F. Hao
影响因子:
5.8
作者:
D. Nguyen
通讯作者:
D. Nguyen
DOI:
10.1145/2810103.2813727
发表时间:
2015
期刊:
Proceedings of the 22nd ACM SIGSAC Conference on Computer and Communications Security
影响因子:
--
作者:
A. Kiayias;T. Zacharias;Bingsheng Zhang
通讯作者:
Bingsheng Zhang
DOI:
--
发表时间:
1977
期刊:
影响因子:
--
作者:
G. Kramer
通讯作者:
G. Kramer