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From Helios to Zeus
Georgios Tsoukalas, Kostas Papadimitriou, and Panos Louridas, Greek Research and Education Network; Panayiotis Tsanakas, National Technical University of Athens
We present Zeus, a verifiable internet ballot casting and counting system based on Helios, in which encrypted votes are posted eponymously to a server, then are anonymized via cryptographic mixing, and finally are decrypted using multiple trustee keys. Zeus refines the original Helios workflow to address a variety of practical issues, such as usability, parallelization, varying election types, and tallying through a separate computing system. In rough numbers, in the first nine months of deployment, Zeus has been used in 60 elections, tallying a total of more than 12000 votes.
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author = {Georgios Tsoukalas and Kostas Papadimitriou and Panos Louridas and Panayiotis Tsanakas},
title = {From Helios to Zeus},
booktitle = {Presented as part of the 2013 Electronic Voting Technology Workshop/Workshop on Trustworthy Elections},
year = {2013},
address = {Washington, D.C.},
url = {https://www.usenix.org/conference/evtwote13/workshop-program/presentation/Tsoukalas},
publisher = {{USENIX}},
}
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