现代电子技术Issue(8)：43-46,4.
新的代理数字签名方案
A new scheme of proxy digital signature
摘要
Abstract
Professor Gu Li⁃ze,et al made a new scheme of proxy digital signature,which was analyzed and improved by Lu Rong⁃bo,et al. However,Yang Li,et al proved that the improved scheme can not satisfy the public key substitution attack, pointed out the attacking method,and made a new improved proxy signature scheme based on the previous schemes. In this pa⁃per,the new scheme proposed by Yang Li,et al is analyzed,the calculation complexity of theirs is pointed out,and two im⁃proved proxy signature schemes are proposed based on the analysis of the previous schemes. The new schemes have strong secu⁃rity,can prevent any public key replacement tool,reduce complexity and increase efficiency.关键词
数字签名/代理签名/公钥替换攻击/计算复杂度Key words
digital signature/proxy signature/public key substitution attack/computational complexity分类
信息技术与安全科学引用本文复制引用
廖小平,侯翔,卫洪春..新的代理数字签名方案[J].现代电子技术,2015,(8):43-46,4.基金项目
四川文理学院院级基金项目（2012Z004Y）；四川文理学院智能计算与物联网工程技术中心资助；四川文理学院科研创新团队建设与计划（9）资助 （）
