安全组播核心问题研究

Study of Core Problems in Secure Multicast

组播提供了一种发送者可以同时发送信息到多个接收者的高效通信机制,但组播的安全问题却阻碍了组播技术的广泛使用。首先总结了影响组播安全性的因素及组播的安全需求,然后具体地分析了在安全组播核心问题上已有主要成果的优点与不足,最后探讨了该领域的研究趋势,指出了亟待解决的几个重点问题。

IP Multicast provides an efficient mechanism for a sender to send messages to multiple receivers simultaneously. However, security becomes the major obstacle to its wide application in practice. In this paper, the main factors that affect secure multicast and its security requirements are summarized; then the strengths and shortcomings of major schemes of core problems in secure muhicast are investigated in detail; finally, the research tendency of multicast security is analyzed, and some problems urgently to be solved are pointed out.