Journal of Computer Applications ›› 2011, Vol. 31 ›› Issue (04): 975-977.DOI: 10.3724/SP.J.1087.2011.00975

• Information security • Previous Articles     Next Articles

Modification of Cao's multicast key management scheme based on generalized cat map

Quan-di WANG1,Jin-feng LI1,Jie ZHOU2   

  1. 1. School of Sciences, South China University of Technology, Guangzhou Guangdong 510640, China
    2. School of Computer Science and Engineering, South China University of Technology, Guangzhou Guangdong 510006, China
  • Received:2010-10-11 Revised:2010-11-29 Online:2011-04-08 Published:2011-04-01
  • Contact: Quan-di WANG

对基于广义猫映射的组播密钥管理方案的改进

王全迪1,李金凤1,周杰2   

  1. 1. 华南理工大学 理学院,广州 510640
    2. 华南理工大学 计算机科学与工程学院,广州 510006
  • 通讯作者: 王全迪
  • 作者简介:王全迪(1963-),女,吉林集安人,教授,博士,主要研究方向:应用数学、信息安全;
    李金凤(1981-),女,山东聊城,硕士研究生,主要研究方向:信息安全;
    周杰(1964-),男,吉林双辽人,教授,博士,主要研究方向:高性能网络技术、信息安全。
  • 基金资助:
    国家科技支撑计划项目(2008BAH37B08)

Abstract: It is indicated that Cao Guoliang et al's multicast key management scheme based on generalized cat map does not satisfy the independent security requirement of individual keys of group members. A modification scheme was proposed by using one way function. The presented scheme satisfies the independent security requirement of individual keys of group members. Compared with Cao Guoliang et al's scheme, this modification scheme has higher security and lower computation and communication overheads.

Key words: multicast security, multicast key management, independence of individual key, generalized cat map, one way function

摘要: 通过分析指出曹国梁等人给出的基于广义猫映射的组播密钥管理方案不满足组成员私钥独立性的安全性要求。利用单向函数对基于广义猫映射的组播密钥管理方案进行改进,改进方案满足组成员私钥独立性的安全性要求,且比曹国梁等人的组播密钥管理方案具有更高的安全性,同时还具有较低的计算开销和通信开销。

关键词: 组播安全, 组播密钥管理, 私钥独立性, 广义猫映射, 单向函数

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