摘要： 组播提供了一种发送信息到多个接受者的高效通信机制，但是组播的安全问题却阻碍了组播技术的广泛使用，而组播安全的核心问题就是密钥管理。但是目前的密钥管理方案普遍存在着延迟比较高、扩展性和可靠性差等问题。该文根据IPv6组播地址特点和MLD协议的功能，在IPv6环境和有限成员的条件下，提出了一种新的分布式模式逻辑密钥树的组播密钥管理方案，仿真实验结果表明，该方案中具有延迟较小、扩展性和可靠性较好的优点。

关键词: IPv6, 组播, 密钥管理

Abstract: Multicast protocol is a mechanism to send a message to multiple receivers simultaneously. But the security of multicast hinders the wider application of multicast, of which the most important problem is key management. But most of current schemes of key management have problems such as long delay, poor scalability, poor reliability. According to features of multicast address of IPv6 and MLD protocol, a novel distributed multicast key management scheme of pattern logical key tree based on IPv6 and limited members is proposed in the paper. The result of simulation shows that the scheme has the advantages of short delay, rich scalability and rich reliability.

Key words: IPv6, Multicast, Key management

中图分类号: 

• TP 393