DATE: 一個去中心化且具匿名性及透明性的電子投票系統

Abstract

一個可以讓所有人都相信的電子投票系統，必須要確保所有資訊都是公開且可接受驗證的。然而，在確保選舉透明性的同時，也需要保護選民的隱私。換句話說，每一張選票必須能夠在匿名的狀況下進行有效率的驗證。在本篇論文中，我們藉由將所有資訊置於以太坊區塊鏈來確保透明行，且利用環簽章來確保每一個選民的隱私。除此之外，所有人皆可以在不需要受信任的第三方的幫助之下獨立完成驗票程序，亦即，在選舉過程中，參與者並不需要相信其他人。我們也在不影響選舉正確性的情況下，最小化選民所需要負擔的花費。透過上述特性，我們能夠製造出匿名且適合大規模選舉的電子投票系統。

A trusted electronic election system requires that all the involved information must go public., Howeverthat is, it focuses not only on transparency but also on privacy issues. In other words, each ballot should be counted anonymously, correctly, and efficiently. In this work, an effective eE-voting system is proposed for voters to minimize their trust in the authority or government. We ensure the transparency of election by putting all messages on the Ethereum blockchain;, in the meantime, the privacy of individual voter is protected via an effective ring signature mechanism. Besides, the attractive self-tallying feature is also built in our system, which guarantees that everyone who can access the blockchain network is able to tally the result on his own, i.e., no third party is required after the voting phase. More importantly, we ensure the correctness of voting results and keep the Ethereum gas cost of individual participant as low as possible, at the same time. ClearlyMoreover, the pre-describedpre-described characteristics of stealth address in omake our system makes it more suitable for large-scale election on line.