향상된 사용자 편의성을 갖는 안전한 전자 투표 영수증 발급 방식
A Secure Receipt Issuing Scheme for e-Voting with Improved Usability
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초록
현재의 전자투표 시스템은 투표자로 하여금 일방적인 신뢰를 강요하고 있으며, 투표자의 의도대로 기록되었음을 입증하지도 않는다. 전자투표가 종이투표 방식보다 많은 장점을 제공할 것이라고 기대하고 있음에도 불구하고 이러한 신뢰성 결여는 전자투표 실시를 막는 주요 요인이 되고 있다. 많은 전문가들은 투표자에게 투표기가 정확하게 동작하고 있음을 확신시키기 위해 영수증을 발급하는 방안을 긍정적으로 고려하고 있다. 본 논문에서는 이미 잘 알려진 cut-and-choose 방식을 응용한 영수증 발급 방식을 제안한다. 제안하는 방식은 특수한 영수증 출력 장치나 제삼자에 의한 투표기 검증 등이 필요없으며, 기존 방식보다 높은 안전성을 제공한다.
Abstract
Current electronic voting systems are not sufficient to satisfy trustworthy elections as they do not provide any proof or confirming evidence of their honesty. This lack of trustworthiness is the main reason why e-voting is not widespread even though e-voting is expected to be more efficient than the current plain paper voting. Many experts believe that the only way to assure voters that their intended votes are casted is to use paper receipts. In this paper, we propose an efficient scheme for issuing receipts to voters in an e-voting environment using the well-known cut-and-choose method. Our scheme does not require any special printers or scanners, nor frequent observations of voting machines. In addition, our scheme is more secure than the previous schemes.
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