Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (30): 101-103.DOI: 10.3778/j.issn.1002-8331.2010.30.030

• 网络、通信、安全 • Previous Articles     Next Articles

Strong forward-secure proxy signature scheme

Alimjan AYSA1,Turgun IBRAHIM2,Kurban OBUL2,Askar HAMDULLA2   

  1. 1.Center of Modern Education Technology,Xinjiang University,Urumqi 830046,China
    2.College of Information Science and Engineering,Xinjiang University,Urumqi 830046,China
  • Received:2009-03-16 Revised:2009-05-11 Online:2010-10-21 Published:2010-10-21
  • Contact: Alimjan AYSA

强前向安全的代理签名方案

阿力木江.艾沙1,吐尔根.依不拉音2,库尔班.吾布力2,艾斯卡尔.艾木都拉2   

  1. 1.新疆大学 现代教育技术中心,乌鲁木齐 830046
    2.新疆大学 信息科学与工程学院,乌鲁木齐 830046
  • 通讯作者: 阿力木江.艾沙

Abstract: Forward-secure proxy signature schemes can not protect the security of the signatures generated after the proxy key exposure.Based on the forward-secure proxy signature scheme proposed by Wang Tianyin,et al,a strong forward-secure proxy signature scheme with key exposure detection is proposed by introducing the mechanism of one-way hash chain.Even if the malicious attacker can intrude the system at certain period,he can not forge any signatures in the past and future periods.

Key words: forward security, strong forward security, proxy signature, one-way hash chain

摘要: 前向安全代理签名方案无法保证代理者密钥泄漏后未来时段代理签名的安全性。基于单向散列链,对王天银等提出的前向安全代理签名方案进行了改进,使该方案的代理签名具有强前向安全性:即使代理密钥被泄露,攻击者也无法伪造过去和未来时段的代理签名,并且具有密钥泄露检测功能。

关键词: 前向安全, 强前向安全, 代理签名, 单向散列链

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