摘要
提出了一种新的基于Jacobian椭圆有理映射的组密钥管理方案。该方案与现有的组密钥管理方案相比,具有较少的密钥更新信息量和计算量,并能够支持前向保密、后向保密以及能抵御同谋攻击的优点。分析证明,在中度规模和较小规模的组播环境中,该方案具有较高的效率。
This paper proposed a new scheme of group key management based on Jacobian elliptic rational map. In contrast to traditional group key management protocols, this new scheme had fewer re-keying messages and low computational cost. Besides, it provided backward secrecy, forward secrecy and anti-collusion attacks. The analysis indicates that this scheme is more efficient in medium-scale and small-scale multicast network.
出处
《计算机应用研究》
CSCD
北大核心
2007年第10期145-147,151,共4页
Application Research of Computers