基于ECDSA的代理多签名方案  

Digital proxy multi-signature scheme based on ECDSA

作　　者：郭星[1,2] 陈春芳[2] 

机构地区：[1]青海大学继续教育学院,青海西宁810008 [2]南昌大学数学系,江西南昌330031

出　　处：《南昌大学学报（理科版）》2015年第3期243-246,共4页Journal of Nanchang University(Natural Science)

基　　金：江西省自然科学基金资助项目(20114BAB201007;20142BAB201007);江西省教育厅科学研究基金资助项目(GJJ13081);"江西省‘十二五’重点学科‘管理科学与工程’"资助

摘　　要：首先对ECC和ECDSA在安全性和运算速度方面的优越性进行了分析,椭圆曲线数字签名算法非常适用于代理多签名方案。将现有的方案改进后,提出一个改进的基于ECDSA的代理多签名方案,并对新方案做了安全性分析。验证结果表明:改进的方案具有强不可伪造性、强可区分性、抗抵赖性和可控性,并且无需在安全信道下传送,抗攻击性更强。通过更短小的程序代码和封装模块的复用,保证方案适用于微小软/硬件和不安全的外部环境。The study aimed to analyzethesuperiority of security and speed on ECC and ECDSA,and then ex- plore if thecurve digital signature algorithm could be suitable for proxy multi-signature scheme. After the modification of the existing schemes, an improved proxy multi-signature scheme was proposedbased on ECDSAtoanalyze the security of new scheme. The improved schemes showedstrong unforgeability, high dis- tinguishability,non-repudiation and controllability,as well as avoiding thetransferring in the security chan- nel. By reusing the shorter code and the packaging module, it was found that the solution was more suitable for micro software/hardware and unsafe external environment.

关 键 词：公钥密码学 椭圆曲线 代理签名 代理多签名 

分 类 号：O29[理学—应用数学]