计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (34): 95-96.DOI: 10.3778/j.issn.1002-8331.2008.34.029

• 网络、通信、安全 • 上一篇    下一篇

高效的新签密方案

马海英1,王占君2   

  1. 1.南通大学 计算机科学与技术学院,江苏 南通 226019
    2.南通大学 理学院,江苏 南通 226007
  • 收稿日期:2008-01-10 修回日期:2008-04-18 出版日期:2008-12-01 发布日期:2008-12-01
  • 通讯作者: 马海英

New signcryption scheme with higher efficient

MA Hai-ying1,WANG Zhan-jun2   

  1. 1.College of Computer Science,Nantong University,Nantong,Jiangsu 226019,China
    2.School of Science,Nantong University,Nantong,Jiangsu 226007,China
  • Received:2008-01-10 Revised:2008-04-18 Online:2008-12-01 Published:2008-12-01
  • Contact: MA Hai-ying

摘要: 利用椭圆曲线上双线性对的性质,提出了一种新的基于身份高效签密方案,该方案克服了传统签密体制中接收方先解密后验证签名的缺点,提供了任意第三方在不知道明文的前提下都可以验证签名的功能。经过分析比较,该方案具有很高的效率和安全性。本方案特别适用于电子商务中过滤垃圾信息等场合。

关键词: 签密, 基于身份, 椭圆曲线, 双线性对

Abstract: A new efficient indentity-based signcryption scheme is proposed in the paper,in which some characteristics of bilinear pairings on elliptic curves are taken into account.It has improved the drawbacks of receiver verifying signature after decrypting in the traditional signcryption scheme.Anybody can verify the signature without knowing the plaintext.The scheme is safe and also very efficient regarding the computation costs after analyzing other schemes.It can be applied in E-business scenario,such as filtration of unuseful instant messages.

Key words: signcryption, identity-based, elliptic curves, bilinear pairings