计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (20): 135-137.DOI: 10.3778/j.issn.1002-8331.2008.20.041

• 网络、通信、安全 • 上一篇    下一篇

接收者无状态下可扩展的公钥广播加密方案

石雅男,黄根勋,王 旭   

  1. 信息工程大学 理学院 数学物理系,郑州 450001
  • 收稿日期:2007-10-18 修回日期:2008-01-22 出版日期:2008-07-11 发布日期:2008-07-11
  • 通讯作者: 石雅男

Scalable public key broadcast encryption scheme for stateless receiver

SHI Ya-nan,HUANG Gen-xun,WANG Xu   

  1. Department of Mathematics and Physics,Institute of Science,Information Engineering University,Zhengzhou 450001,China
  • Received:2007-10-18 Revised:2008-01-22 Online:2008-07-11 Published:2008-07-11
  • Contact: SHI Ya-nan

摘要: 广播加密是一种应用广泛的群组保密通信系统。在CS方法的基础上利用HIBE中身份的表示方法提出一种新的公钥广播加密方案,同时采用预留节点的方法在接收者无状态的情况下真正实现了系统的可扩展性。与已有方案比较,该方案的系统参数大大减少,同时具有用户密钥持有量小且运算效率高的优点,在实际的无状态接收装置中有着广泛的应用。

关键词: 广播加密, 公钥密码体制, 无状态接受, CS方法, HIBE, IBE

Abstract: Broadcast encryption scheme is a widely used cryptosystem for a group of receivers.In this paper,a new public key broadcast encryption scheme is proposed under the CS method by the use of identity expression in HIBE.By setting nodes in advance for potential users,the scheme can be used for stateless receiver,which will have enormous application in practice with the least number of private keys and high efficiency.

Key words: broadcast encryption, public key cryptosystem, stateless receiver, CS method, HIBE, IBE