Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (34): 89-91.DOI: 10.3778/j.issn.1002-8331.2010.34.028

• 网络、通信、安全 • Previous Articles     Next Articles

Self-certified universal designated-verifier signcryption scheme

YU Hui-fang1,WANG Cai-fen2,WANG Zhi-cang1,LI Yan-xia3   

  1. 1.Department of Computer Science,Qinghai Normal University,Xining 810008,China
    2.College of Mathematics and Information Science,Northwest Normal University,Lanzhou 730070,China
    3.Tianshui Filiale of Gansu Mobile Company,Tianshui,Gansu 741000,China
  • Received:2009-04-10 Revised:2009-06-12 Online:2010-12-01 Published:2010-12-01
  • Contact: YU Hui-fang

自认证广义指定验证者签密方案

俞惠芳1,王彩芬2,王之仓1,李艳霞3   

  1. 1.青海师范大学 计算机系,西宁 810008
    2.西北师范大学 数学与信息科学学院,兰州 730070
    3.甘肃移动有限公司 天水分公司,甘肃 天水 741000
  • 通讯作者: 俞惠芳

Abstract: By integrating the thought of self-certified signcryption and universal designated-verifier signature,the first self-certified universal designated-verifier signcryption scheme is proposed and proved to be secure under the hardness of elliptic curve discrete logarithm problem and bilinear Diffie-Hellman problem.The new scheme allows the signcryption holder to designate the signcryption to a desire designated verifier,in such a way that only designated verifier can verify this signcryption,moreover,it overcomes certificate management problem and key escrow problem,and it has the merits of lower storage space and better security,so it has very practical value in E-commerce and E-governmemt.

摘要: 基于自认证签密和广义指定验证者签名的思想,一个新的自认证广义指定验证者签密方案被提出,在椭圆曲线离散对数问题和双线性Diffie-Hellman问题的困难性假设下,该方案被证明是安全的。该方案允许签密的持有者指定签密给指定的验证者,仅仅只有指定的验证者能够验证这个签密,不存在证书管理问题和密钥托管问题,具有存储量小、安全性强等优点,在电子商务和电子政务中具有很实用的价值。

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