基于ECC和零知识证明的盲签名方案设计与实现

椭圆曲线密码系统具有稳定的数学结构和较高的安全性,与目前流行的RSA公钥密码系统相比较有很大优势,成为当前研究的热点。基于椭圆曲线密码体制,设计和实现了一种高效安全的盲签名方案。首先,对相关概念及文献进行了分析与比较,介绍了椭圆曲线密码系统和盲签名的基本原理;其次,基于椭圆曲线密码系统的优势,设计了一种盲签名新方案.在方案中,为了不向签名者泄漏请求签名者的身份信息,消息发送者使用零知识证明协议隐藏了身份信息;最后,对设计方案的盲化、不可追踪性进行了分析,并与常见的盲签名算法进了分析比较,证明了本设计方案的高效性。

Design and Implementation of Blind Signature Scheme based on ECC and Zero-Knowledge Proof

Owing to its robust mathematical structure and high security, elliptic curve cryptosystem enjoys obvious superiority as compared with current RSA public key cryptosystem, thus becomes the hottest research topic. Based on elliptic curve cryptosystem, an efficient and secure blind signature scheme is designed and implemented. The related concepts and documents are analyzed and compared, and the basic principles of elliptic curve cryptosystem and blind signature also described in this paper. Finally, a novel scheme of blind signature based on the advantages of elliptic curve cryptosystem is designed. In this scheme, message sender hides the identity information through zero-knowledge proof protocol, thus leaking no identity information of the request signer to the signer. Finally the blinding and untractability of the design scheme are analyzed, and comparison of and analysis on several common blind signature algorithms indicate the high efficiency of this design scheme.