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计算机工程 ›› 2011, Vol. 37 ›› Issue (5): 140-142. doi: 10.3969/j.issn.1000-3428.2011.05.047

• 安全技术 • 上一篇    下一篇

一种改进的组播密钥管理方案

殷鹏鹏  a,b,曹 争  a,b,陆正军  a,c   

  1. (东南大学 a. 计算机科学与工程学院;b. 江苏省计算机网络技术重点实验室;c. 计算机网络和信息集成教育部重点实验室,南京210096)
  • 出版日期:2011-03-05 发布日期:2012-10-31
  • 作者简介:殷鹏鹏(1985-),男,硕士研究生,主研方向:安全组播;曹 争,副教授;陆正军,硕士研究生
  • 基金资助:
    国家科技支撑计划基金资助项目“新一代可信任互联网安全和网络服务”(2008BAH37B04);江苏省科技支撑计划基金资助项目“新一代互联网大规模组播关键技术的研究与试验”(SBE2008 00789)

Improved Multicast Key Management Scheme

YIN Peng-peng  a,b, CAO Zheng  a,b, LU Zheng-jun  a,c   

  1. (a. School of Computer Science and Engineering; b. Key Laboratory of Computer Network Technology, Jiangsu Province; c. Key Laboratory of Computer Network and Information Integration, Ministry of Education, Southeast University, Nanjing 210096, China)
  • Online:2011-03-05 Published:2012-10-31

摘要: 针对现有组播密钥管理方案存在的前向加密、后向加密和同谋破解问题,提出一种改进的组播密钥管理方案。改进方案由组播认证、安全组播转发树的维护、组密钥的分发和更新组成,通过二层控制方式降低组成员离开时密钥更新操作的复杂度,从而保障组密钥分发和更新过程的安全性和高效性。实验结果表明,改进方案具有较优越的计算开销、通信开销和可接受的存储开销。

关键词: 组播密钥管理, 二层控制, 简单网络管理协议

Abstract: Aiming at the problems that multicast key management scheme exists forward confidentiality, backward confidentiality and conspiracy cracked, this paper presents an improved multicast key management scheme. It includes multicast authentication, secure multicast forwarding tree management, key distribution when users are initialized and periodical key updating. It reduces the complexity of the key updating problem when members leave the group by two-layer control and guarantee the efficiency and security of key management. Experimental result shows that this scheme performs better on computation cost and communication cost, and it has acceptable storage cost.

Key words: multicast key management, two-layer control, Simple Network Management Protocol(SNMP)

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