安全多播中的密钥分配机制

KEY DISTRIBUTION ARCHITECTURES IN MULTICAST SECURITY

一个完整的安全多播通信涉及很多因素,但是通过分析发现,其中很多安全因素都可以归结为群组密钥的分配和更新问题。给出了一个从密钥管理和密钥分配的角度来判定安全多播的标准,根据这个标准分析讨论了目前存在的几种多播密钥分配机制。并提出了安全多播通信的研究方向。

A complete solution to the multieast security problem involves all aspects of applications of the fundamental security services such as authentication,integrity and confidentiality. In this paper, we show that many of these security concerns can be abstracted into a key management problem. As secure group communication can be obtained by successful Communications of key materials, the key distribution and management is of extra importance in muhicast security. Some issues relevant to the multicast security are also addressed. A set of criteria focusing on key related issues is proposed using which several key architectures are analyzed and compared.