计算机工程与应用Issue(22)：100-103,4.DOI:10.3778/j.issn.1002-8331.1202-0272
对一种新型代理签名方案的进一步分析和改进
nalysis and improvement of new proxy signature scheme
摘要
Abstract
In this paper, a new proxy signature scheme proposed by Lu Rong-bo et al. is given a detailed cryptanalysis. This paper points out that this scheme is not secure against public key substitution attack and proposes a method to attack the new scheme. Based on this, one improved scheme is given and concluded that it is not only secure against the original signer’s forgery attack effectively but also avoiding the problems of the original scheme. Compared with the original scheme, the new scheme is more security and has the same computation complexity.关键词
数字签名/代理签名/公钥替换攻击/可证明安全Key words
digital signature/proxy signature/public key substitution attack/provable security分类
信息技术与安全科学引用本文复制引用
杨丽,张建中..对一种新型代理签名方案的进一步分析和改进[J].计算机工程与应用,2013,(22):100-103,4.基金项目
国家自然科学基金（No.61173190）；陕西省自然科学基金计划研究项目（No.2009JM8002）；陕西省教育厅科学研究计划基金资助项目（No.2010JK829，No.2010JK398）；中央高校基本科研业务费专项资金资助（No.GK201002041）。 （）
