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The Study of WSN Access Control Mechanism

Author: SuShiPing
Tutor: MengYingJie
School: Lanzhou University
Course: Computer Software and Theory
Keywords: Wireless sensor networks Access Control Map Distributed authentication
CLC: TN915.08
Type: Master's thesis
Year: 2007
Downloads: 172
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Abstract


Wireless sensor networks to collect environmental data and environmental information to provide users with data services. With the diversification of the application of depth and perception data, environmental data will be perceived by the sensor contains a lot of sensitive data and privacy data, and how to effectively protect such data from unauthorized users access to control user access behavior is users with limited access to services, and is one of the main problems that must be addressed in the wireless sensor network applications. Access control access between users and resources, the resources managed by the existing access control system, however, the degree of dispersion and dynamic far less than the wireless sensor networks and wireless sensor networks, computing, communications, energy, and other resources very limited, network formation and deployment of the system is very different with the traditional computing systems, direct management node resource heavy workload, and is not easy to achieve. Therefore, according to the wireless sensor network collected data security and environmental information related to this feature, the environment map into access control for wireless sensor networks, we construct a map-based wireless sensor network access control mechanism and this mechanism and its implementation framework. The main work done is mainly reflected in the following aspects. First, according to the characteristics of wireless sensor networks, based on the map constructed a logical resources, constructed on the basis of a map-based wireless sensor network access control model. The model is based on the logic resources to develop access control policy, control strategy will be based on the logical access to resources through the GPS positioning information is mapped to the physical resources, in order to achieve stable and easy wireless sensor network resource access control. Secondly, for the construction of access control model, the design of the prototype access control system architecture, its deployment environment, the system is divided into three subsystems: access control management subsystem, access control implementation of the subsystem and user terminal subsystem, and discussion their implementation process and algorithm. Again, due to the distributed authentication subsystem is a core part of the wireless sensor network access control to achieve, according to the characteristics of wireless sensor networks and map-based access control model needs to design a distributed based on Elliptic Curve Digital Signature Algorithm authentication protocol. Finally, construct access control mechanism from the aspects of feasibility, availability, and security of the simulation experiment.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Communication network > General issues > Network Security
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