Multi-User Access Control Scheme Based on Resources Hierarchies for Perceptual Layer of IoT
Ma Ju · Dianzi xuebao · 2014
A novel hierarchical access control scheme for perceptual layer of the IoT is presented based on resources hierarchies,which could conform to the secure and efficient access requirement of multi-user.In the scheme,every hierarchical node is composed of perceptual nodes which provide resources with the same levels of security.More hierarchical nodes can be modeled as a set of partially ordered classes.With this mode,a deterministic key derivation algorithm is designed,which makes every user and perceptual node possesses a single key material to get some keys,and obtains the resources at the presented class and all descendant classes in the hierarchy.Furthermore,a mechanism of Merkle tree is introduced to guarantee secure and efficient multi-user key material derivation by independent of each hash link.Compared with previous proposals,the scheme is more suitable for multi-user to access resources of perceptual layer in IoT.