A 3-layer architecture key distribution scheme of immeasurable information sharing network

Recent years, a new immeasurable information sharing network (IISN) has been supposed to be the complementarities for the next generation network. How to ensure the security of this network, and how to perform the key management for authorized clients? This paper proposed a new three-layer architecture key distribution scheme of IISN based on condition access system. Our scheme in this paper is to fully utilize the special 3-layers architecture of IISN to design the key distribution model. The 3-layer architecture key distribution model consists of the aggregation server layer, the local server layer and the client layer. This scheme adds a local server layer into the common two-layer key distribution model. It is used to decrease the computation load. Moreover, a dynamical authorization key matrix is defined in this paper to improve the security and flexibility of the key distribution model. Theoretical analysis shows that this scheme has the high-security and good performance, and it is interesting for applications in IISN.