基于椭圆曲线盲数字签名的电子选举

E-elections Based on Elliptic Curve Blind Digital Signature

椭圆曲线公钥密码体制具有安全性高、密钥量小、灵活性好的优点。基于椭圆曲线的数字签名在电子商务等领域为身份认证、数据完整性、不可否认性以及匿名性等提供了安全保障。提出一种基于有限域GF(p)上非超奇异椭圆曲线上肓数字签名的方案,结合该方案设计一个在线电子投票协议。其安全性建立在椭圆曲线离散对数问题的难解性基础上,具有较好的实用价值。

Elliptic curve cryptosystem is known as its unique advantages of high security,small amount of key and flexibility.Based on elliptic curve digital signature which provides security in many electronic commerce areas such as authentication,data integrity,non-repudiation and the anonymity,this paper proposes a blind digital signature based on the finite field GF（p） on non-supersingular elliptic curve,and designs an online e-voting protocol which is in conjunction with this program.Its safety is dependent on the discrete logarithm of elliptic curve,and it is suitable for some practice.