Active network is a new network architecture in last few years, in which active nodes provide programmable network services on passing packets. Users can configure, extend and download these services through active packets. However, the flexibility of network brings serious security problem. Because there are always malicious attackers in network, we must limit users' access to the resources and statuses of active routers to guarantee their safe running. Because traditional routers are mainly responsible for packets forwarding, and lack enough security support to router software, it's necessary to design consummate active network security architecture. This paper defines the integrated security architecture of active network, and provides safe protection to each phase of active codes during their running. And we also defme the security architecture of active nodes, and bring forward the resource managing mechanism based on access control. The security architecture and mechanism introduced by this paper have been implemented in Extensible Service Router prototype system.
IPSec protocols offer a standard security section introduces the arclutecture of Router Security mechanism, used for security service to upper Subsystem; the third introduces the detailed design protocols (such as UDP and TCP). This paper and implementation of each module; the forth introduces the design and implementation of Router Secunty Subsystem based on IPSec, the important part of High Performance Security Router made by Tsinghua University. We complete consummate and reliable security functions, use various optimal methods to enhance the performance furthest.
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