作者投稿和查稿 主编审稿 专家审稿 编委审稿 远程编辑

计算机工程 ›› 2007, Vol. 33 ›› Issue (02): 130-132. doi: 10.3969/j.issn.1000-3428.2007.02.045

• 安全技术 • 上一篇    下一篇

不可否认的可公开验证的代理多重签密方案

甘元驹,谢仕义,付东洋,郑小平   

  1. (广东海洋大学信息学院,湛江 524088)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-01-20 发布日期:2007-01-20

Nonrepudiable Proxy Multi-Signcryption Scheme with Public Verifiability

GAN Yuanju, XIE Shiyi, FU Dongyang, ZHENG Xiaoping   

  1. (School of Information, Guangdong Ocean University, Zhanjiang 524088)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-01-20 Published:2007-01-20

摘要: 针对现有的代理签名仅能提供授权的认证而不能提供保密性的弱点,提出了一种有效的代理多重签密方案。该方案具有如下特点:原始签名人与代理签密人之间不必使用安全信道;只有指定的接收者能验证代理签密的有效性;当代理签名人否认签密时,接收者可单独将代理签密转换为一般的代理签名。

关键词: 密码学, 代理签密, 不可否认性, 公开验证

Abstract: Most previous proxy signatures only provide the delegated authenticity and don’t provide the confidentiality. An efficient proxy multi-signcryption scheme is presented. The proposed scheme has the following properties: Original signer and proxy signer don’t use secure channel; Only the specified recipient can check the validity of the proxy signcryption; When the proxy signer repudiates the signcryption, the recipient can convert this proxy signcryption into an ordinary proxy signature alone.

Key words: Cryptography, Proxy signcryption, Nonrepudiable, Public verifiability