基于椭圆曲线的盲代理盲签名方案  

Blind Proxy Blind Signature Scheme Based on Elliptic Curve

作　　者：李方伟[1] 万丽[1] 闫少军[1] 

机构地区：[1]重庆邮电大学移动通信安全技术重点实验室,重庆400065

出　　处：《计算机工程》2012年第3期139-140,144,共3页Computer Engineering

基　　金：国家自然科学基金资助项目(61071116);重庆市发改委高技术产业技术开发基金资助项目(20091537)

摘　　要：针对现有签名方案不能同时保护代理签名者和消息拥有者安全的问题,提出一种基于椭圆曲线的盲代理盲签名方案。该方案不需要可信方,在隐藏代理签名者身份信息的同时,盲化需要签名的消息。分析结果表明,该方案满足盲代理签名和代理盲签名的安全特性,能有效保护代理签名者和用户的身份隐私。To solve the contradiction that current signature schemes can not protect the benefits of proxy signer and message owner at the same time, a blind proxy blind signature scheme without trusted party base on elliptic curve is presented. It hides both the identity of the proxy signer and the message to be signed. The property analysis shows that the proposed scheme satisfies the security properties of proxy blind signature and blind proxy signature scheme. It can effectively protect the proxy signer and user＇s identity privacy and prevents abusing signature. It also has a higher safety and efficiency compared with other schemes.

关 键 词：椭圆曲线 盲代理 盲签名 匿名性 不可伪造性 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]