基于ElGamal同态加密的隐私保护电子投票方案设计

Design of Privacy Protection Electronic Voting Scheme Based on ElGamal Homomorphic Encryption

摘要: 实现电子投票真正地匿名性是电子投票领域的一个研究热点。本文提出一种基于ElGamal同态加密的电子投票方案，利用ElGamal加密同态性对多张密文选票进行统计，然后解密统计后的数据，得到投票结果。该方案极大的提高了投票的匿名性和计票时的数据安全性。最后模拟现实投票场景具体分析了该框架执行时间和运行效率，验证了该框架的可行性。

Abstract: Realizing the true anonymity is a research hot spot in the field of electronic voting. This paper proposes an electronic voting framework based on ElGamal homomorphic encryption. It counts ciphertext votes and then the statistical data is decrypted to obtain the voting result. This scheme greatly improves the anonymity of voting and data security at the time of counting. Further, experiments based on real-world scenario show that execution time and operational efficiency of the framework, and the feasibility of the framework is verified.