群组通信中密钥管理协议

The Key Management Protocol for Group Communications

为了提高群组通信中密钥管理协议的安全性和执行效率,分析了群组密钥中集中式密钥管理和分布式密钥管理,针对这两类协议的优势和不足,构造了一种群组密钥管理协议,此协议保留了集中式密钥管理中群组服务器,并融入了分布式管理协议的特点,吸取了两者的优点.最后我们对该协议的安全性和有效性进行了分析.结果表明,在安全性得到保证的前提下显著地提高了协议的执行效率.

This paper gives an analysis of the centralized group key management protocol and distributed key management protocol, including the strengths and weaknesses. A new group key management based on the advantages of centralized and distributed key management protocol is proposed, and an analysis for the safety and efficiency of the protocol is presented.