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计算机工程 ›› 2011, Vol. 37 ›› Issue (5): 179-180,183. doi: 10.3969/j.issn.1000-3428.2011.05.060

• 安全技术 • 上一篇    下一篇

具有失败-中止性质的代理签名

钟 翔   

  1. (复旦大学软件学院,上海 201203)
  • 出版日期:2011-03-05 发布日期:2012-10-31
  • 作者简介:钟 翔(1983-),男,硕士研究生,主研方向:密码学,信息安全

Proxy Signature with Fail-stop Property

ZHONG Xiang   

  1. (School of Software, Fudan University, Shanghai 201203, China)
  • Online:2011-03-05 Published:2012-10-31

摘要: 提出一个具有失败-中止性质的代理签名机制。该机制的计算安全性基于离散对数问题,失败-中止性质的引入使签名伪造者拥有不受限的计算资源,可以破坏离散对数问题的难解性,成功伪造出有效签名,但诚实签名者能以极大的概率证明该签名是伪造的,以便原签名者及时采取应对措施。

关键词: 数字签名, 理签名, 败-中止签名

Abstract: This paper proposes a proxy signature scheme with fail-stop property. Its computational security is based on discrete logarithm problem. Fail-stop property makes the signature forger with unbounded computational resources, so that he can indeed forge a valid signature, but honest signer can prove with overwhelming probability that the signature is a fake one. So that the original signer can take additional actions in time.

Key words: digital signature, proxy signature, fail-stop signature

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