Vote validatability in Mix-Net-based eVoting
Visualitza/Obre
10.1007/978-3-319-22270-7_6
Inclou dades d'ús des de 2022
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hdl:2117/82926
Tipus de documentArticle
Data publicació2015
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Abstract
One way to build secure electronic voting systems is to use Mix-Nets, which break any correlation between voters and their votes. One of the characteristics of Mix-Net-based eVoting is that ballots are usually decrypted individually and, as a consequence, invalid votes can be detected during the tallying of the election. In particular, this means that the ballot does not need to contain a proof of the vote being valid. However, allowing for invalid votes to be detected only during the tally- ing of the election can have bad consequences on the reputation of the election. First, casting a ballot for an invalid vote might be considered as an attack against the eVoting system by non-technical people, who might expect that the system does not accept such ballots. Besides, it would be impossible to track the attacker due to the anonymity provided by the Mix-Net. Second, if a ballot for an invalid vote is produced by a software bug, it might be only detected after the election period has nished. In particular, voters would not be able to cast a valid vote again. In this work we formalize the concept of having a system that detects invalid votes during the election period. In addition, we give a general construction of an eVoting system satisfying such property and an e - cient concrete instantiation based on well-studied assumptions One way to build secure electronic voting systems is to use Mix-Nets, which break any correlation between voters and their votes. One of the characteristics of Mix-Net-based eVoting is that ballots are usually decrypted individually and, as a consequence, invalid votes can be detected during the tallying of the election. In particular, this means that the ballot does not need to contain a proof of the vote being valid. However, allowing for invalid votes to be detected only during the tally- ing of the election can have bad consequences on the reputation of the election. First, casting a ballot for an invalid vote might be considered as an attack against the eVoting system by non-technical people, who might expect that the system does not accept such ballots. Besides, it would be impossible to track the attacker due to the anonymity provided by the Mix-Net. Second, if a ballot for an invalid vote is produced by a software bug, it might be only detected after the election period has nished. In particular, voters would not be able to cast a valid vote again. In this work we formalize the concept of having a system that detects invalid votes during the election period. In addition, we give a general construction of an eVoting system satisfying such property and an e - cient concrete instantiation based on well-studied assumptions
CitacióBibiloni, P., Escala, A., Morillo, M. Vote validatability in Mix-Net-based eVoting. "Lecture notes in computer science", 2015, vol. 9269, p. 92-109.
ISSN0302-9743
Versió de l'editorhttp://link.springer.com/chapter/10.1007%2F978-3-319-22270-7_6
Fitxers | Descripció | Mida | Format | Visualitza |
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voteID_final.pdf | article Escala-Morillo-Bibiloni, VoteID 2015 | 335,3Kb | Visualitza/Obre |