具有强盲性的高效无证书盲签名方案  

Strongly blind and efficient certificateless blind signature scheme

作　　者：龚国昌[1] 石志寒[1] 

机构地区：[1]空军工程大学防空反导学院,西安710051

出　　处：《计算机应用》2014年第7期1890-1892,1901,共4页journal of Computer Applications

基　　金：国家自然科学基金资助项目(61272486);中国博士后基金资助项目(2013M542331);陕西省自然科学基金资助项目(2013JQ8035)

摘　　要：针对无证书盲签名方案存在的效率低、不具备强盲性的缺点,提出了一种具有强盲性的高效无证书盲签名方案。该方案严格按照无证书盲签名的定义,将签名过程分成了系统建立、密钥生成、盲签名及签名验证四个阶段。同时,该方案基于椭圆曲线离散对数问题(ECDLP),引入三个随机盲化参数。性能分析结果表明,所提方案在随机预言模型下是安全的,具有高效性和强盲性。Concerning that the existing schemes of certificateless signature are neither strongly blind nor efficient, a strongly blind and efficient scheme was proposed. The scheme was divided into four stages： setup, extract, sign and verify, in strict accordance with the definition of certificateless blind signature. Meanwhile, the scheme was based on Elliptic Curve Discrete Logarithm Problem （ ECDLP）, and introduced three random blind parameters. The resuhs of performance analysis show that the proposed scheme is safe under the random oracle model, and they also show that the scheme is efficient and strongly blind.

关 键 词：无证书签名 盲签名 椭圆曲线离散对数问题 随机预言模型 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]