计算机工程与应用 ›› 2011, Vol. 47 ›› Issue (17): 107-110.

• 网络、通信、安全 • 上一篇    下一篇

无证书环签密方案

洪东招1,谢 琪2   

  1. 1.杭州师范大学 理学院,杭州 310036
    2.杭州师范大学 信息科学与工程学院,杭州 310036
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-06-11 发布日期:2011-06-11

Certificateless ring signcryption scheme

HONG Dongzhao1,XIE Qi2   

  1. 1.College of Science,Hangzhou Normal University,Hangzhou 310036,China
    2.College of Information Science and Engineering,Hangzhou Normal University,Hangzhou 310036,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-06-11 Published:2011-06-11

摘要: 无证书公钥密码体制解决了密钥托管问题和公钥认证问题。通过修改Selvi等人提出的基于身份的环签密方案中的密钥的产生算法,提出了一个无证书环签密方案。在随机预言模型下,该方案在适应性选择密文攻击下是可证明安全的。

关键词: 无证书签名, 环签密, 双线性对

Abstract: Certificateless public key cryptography resolves the key escrow problem and public key authentication problem.A certificateless ring signcryption scheme which modifies the key generation algorithms of Selvi et al’s ID-based ring signcryption scheme is proposed.In the random oracle model,the scheme is provably secure against adaptive chosen ciphertext attacks.

Key words: certificateless signature, ring signcryption, bilinear pairings