一种新的基于身份的安全组播密钥协商方案
doi: 10.3724/SP.J.1146.2006.00791
A Novel Identity-Based Key Agreement Scheme for Secure Multicast
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摘要: 密钥管理是安全组播的难点。该文提出了一个新的基于身份的密钥协商方案，并具体地分析了子组之间的通信过程，以及组成员动态变化时密钥的更新过程。结果表明该方案满足密钥协商安全性要求，且在降低计算和通信代价方面取得了较好的效果。Abstract: Efficient key management is a difficult issue in secure multicast. In this paper, a novel identity-based key agreement scheme is proposed for multicast groups. Then the procedures of secret communications between subgroups and updating of group keys with the dynamic change of group members are analyzed in detail. The analysis shows that the scheme satisfies the security requirements of key agreement and is efficient in computation and communication.
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