Computer Engineering and Applications ›› 2007, Vol. 43 ›› Issue (27): 127-129.

• 网络、通信与安全 • Previous Articles     Next Articles

Efficient identity-based concurrent signature scheme

WU Xiao-feng1,WANG Xiao-feng1,WANG Shang-ping1,2,ZHAO Ting1,DONG Hao1   

  1. 1.Xi’an University of Technology,Xi’an 710054,China
    2.National Key Laboratory on ISN,Xidian University,Xi’an 710071,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-09-21 Published:2007-09-21
  • Contact: WU Xiao-feng

一个高效的基于身份的同时签名方案

武晓峰1,王晓峰1,王尚平1,2,赵 婷1,董 浩1   

  1. 1.西安理工大学 密码理论与网络安全研究室,西安 710054
    2.西安电子科技大学 计算机网络与信息安全教育部重点实验室,西安 710071
  • 通讯作者: 武晓峰

Abstract: A new efficient ID-based Concurrent Signature scheme is proposed.And this scheme can better embody the fairness of concurrent signature.Analysis shows that the new scheme’s efficiency is better than that of some existing schemes.Under the random oracle model,the proposed scheme is proven to be existential unforgeable against adaptive chosen message attack.

Key words: concurrent signature, fair exchange, identity-based, bilinear pairings

摘要: 提出了一个新的基于身份的同时签名方案,此方案能更好地体现同时签名的公平性。分析表明,与现存方案相比,所提方案具有较高的效率。在随机预言模型下,可证明该方案在适应性选择消息攻击下是存在不可伪造的。

关键词: 同时签名, 公平交换, 基于身份, 双线性对