In RFC1949,A. Ballardie proposed a method of scalable multicast key distribution based on the Core Based Tree multicast protocol fitting for wide-area IP multicasting. This paper analyses the method deeply,points out ...In RFC1949,A. Ballardie proposed a method of scalable multicast key distribution based on the Core Based Tree multicast protocol fitting for wide-area IP multicasting. This paper analyses the method deeply,points out that the model can't resist the key compromise of a single member effectively,and proposes two kinds of improvement. One is the distributed generating and distributing group data encryption key,the other one is partitioning the group into subgroups. These improvements can increase the security and lifetime of the group key,and decrease the loss of compromise of a single group key encryption key.展开更多
The multicast of Streaming Media over the Internet is an important component of many current and future Internet applications. The heterogeneity and lacking of QoS guarantee make the application of this technique a ch...The multicast of Streaming Media over the Internet is an important component of many current and future Internet applications. The heterogeneity and lacking of QoS guarantee make the application of this technique a challenge. In this paper, we analyze the difficulties in streaming media multicast design, survey technologies that have been proposed for it. We also discuss several congestion control and error control mechanisms. Finally we present some remained issues for further research.展开更多
文摘In RFC1949,A. Ballardie proposed a method of scalable multicast key distribution based on the Core Based Tree multicast protocol fitting for wide-area IP multicasting. This paper analyses the method deeply,points out that the model can't resist the key compromise of a single member effectively,and proposes two kinds of improvement. One is the distributed generating and distributing group data encryption key,the other one is partitioning the group into subgroups. These improvements can increase the security and lifetime of the group key,and decrease the loss of compromise of a single group key encryption key.
文摘The multicast of Streaming Media over the Internet is an important component of many current and future Internet applications. The heterogeneity and lacking of QoS guarantee make the application of this technique a challenge. In this paper, we analyze the difficulties in streaming media multicast design, survey technologies that have been proposed for it. We also discuss several congestion control and error control mechanisms. Finally we present some remained issues for further research.
