安全组播中的密钥管理

网络上的许多新兴的应用技术(如：电话会议，实时信息服务，协同工作等)，是建立在组播通信模型上的。随着组播应用的不断增加以及参与者的增多，组播的安全问题越来越引起人们的重视，研究成果也越来越丰富，安全组播通信因之也成为组播研究领域中的一个重要方面。实现安全组播的一个重要手段是使用加密手段对通信数据进行加密保护，使用加密手段对通信数据进行加密保护时，必然涉及到加密、解密密钥的交换。介绍了现有的安全组播通信密钥管理所面临的问题，讨论了几种算法、策略或结构的特点和问题，希望能给读者在设计安全组播应用方案时提供一些帮助。

Application of Key Administrative in the Secure Group Seeds

Much burgeoning application technique on the electric network ( in case :telephone conference ,real-time information service ,the cooperation ,establish to be living on the series traffic model seeding.In the wake of series seeds continuously ading of application along with groing in number of participator,series secure problem which seeded more and more arouses the high opinion of people.The research fruit is also more and more richer ,the secure group is seeded the significant respect that the communication for this reason also becomes series to seed to research in the territory. Achieving the significant measure that the secure group was seeded is emploing the encipher measure to encrypt the protection to the communication data ,Emploing the encipher measure to adjust the communication data encrypts when safeguarding.The necessity relates to the encipher,change of declassification key.The original was detailedly introduced the now available secure group and was seeded the problem that the communication key administrative office is confronted with ,talk about some kinds of algorithms,tactics either composition distinguishing feature and problem ,wising supplys some helps when be able to be living to reader designs the secure group seeds the application scheme.