The recent growth of the World Wide Web has sparked new research into using the Internet for novel types of group communication, like multiparty videoconferencing and real-time streaming. Multicast has the potential t...The recent growth of the World Wide Web has sparked new research into using the Internet for novel types of group communication, like multiparty videoconferencing and real-time streaming. Multicast has the potential to be very useful, but it suffers from many problems like security. To achieve secure multicast communications with the dynamic aspect of group applications due to free membership joins and leaves in addition to member's mobility, key management is one of the most critical problems. So far, a lot of multicast key management schemes have been proposed and most of them are centralized, which have the problem of 'one point failure' and that the group controller is the bottleneck of the group. In order to solve these two problems, we propose a Key Management Scheme, using cluster-based End-System Multicast (ESM). The group management is between both 1) the main controller (MRP, Main Rendezvous Point) and the second controllers (CRP, Cluster RP), and 2) the second controllers (CRPs) and its members. So, ESM simplifies the implementation of group communication and is efficient ways to deliver a secure message to a group of recipients in a network as a practical alternative to overcome the difficulty of large scale deployment of traditional IP multicast. In this paper, we analyze different key management schemes and propose a new scheme, namely Advanced Transition/Cluster Key management Scheme (ATCKS) and find it has appropriate performance in security.展开更多
以太网交换机仅依据目的介质访问控制(Media Access Control,MAC)子层地址进行数据转发,指定源组播(Source Specific Multicast,SSM)数据进入交换机后可能被转发至其他频道的订阅用户。针对此问题,在分析了SSM协议模型的以太网交换问题...以太网交换机仅依据目的介质访问控制(Media Access Control,MAC)子层地址进行数据转发,指定源组播(Source Specific Multicast,SSM)数据进入交换机后可能被转发至其他频道的订阅用户。针对此问题,在分析了SSM协议模型的以太网交换问题的基础上,提出了SSM数据标识及源标识的加入方法,详细设计了SSM转发表的建立过程,给出了SSM数据的转发流程,并对方法的可行性进行了仿真验证。展开更多
文摘The recent growth of the World Wide Web has sparked new research into using the Internet for novel types of group communication, like multiparty videoconferencing and real-time streaming. Multicast has the potential to be very useful, but it suffers from many problems like security. To achieve secure multicast communications with the dynamic aspect of group applications due to free membership joins and leaves in addition to member's mobility, key management is one of the most critical problems. So far, a lot of multicast key management schemes have been proposed and most of them are centralized, which have the problem of 'one point failure' and that the group controller is the bottleneck of the group. In order to solve these two problems, we propose a Key Management Scheme, using cluster-based End-System Multicast (ESM). The group management is between both 1) the main controller (MRP, Main Rendezvous Point) and the second controllers (CRP, Cluster RP), and 2) the second controllers (CRPs) and its members. So, ESM simplifies the implementation of group communication and is efficient ways to deliver a secure message to a group of recipients in a network as a practical alternative to overcome the difficulty of large scale deployment of traditional IP multicast. In this paper, we analyze different key management schemes and propose a new scheme, namely Advanced Transition/Cluster Key management Scheme (ATCKS) and find it has appropriate performance in security.
文摘以太网交换机仅依据目的介质访问控制(Media Access Control,MAC)子层地址进行数据转发,指定源组播(Source Specific Multicast,SSM)数据进入交换机后可能被转发至其他频道的订阅用户。针对此问题,在分析了SSM协议模型的以太网交换问题的基础上,提出了SSM数据标识及源标识的加入方法,详细设计了SSM转发表的建立过程,给出了SSM数据的转发流程,并对方法的可行性进行了仿真验证。
