Research On Secure Communication Based On Bidirectional Authentication Between Devices And Servers In Internet Of Things

In recent years,applications based on the technology of Internet of Things(Io Ts)have widely used.It not only contains smart systems which are convenient for daily life,including smart home,intelligent transportation,intelligent medical system and so on,but also covers management services such as infrastructure that is beneficial to social stability.However,the process of establishing remote communication between devices and servers lacks security protection and is completely exposed to the complex network environment,and such process is extremely vulnerable under the network attacks.In the current secure communication solutions,the communication requests are sent from the smart phone to devices.However,in this research,the requests are sent from the restricted nodes.Besides,the mainstream security protocols in the Internet,such as the SSL/TLS protocol,have a complex process of the key negotiation and the calculation,which may lead to extremely complexity of the calculation and higher resources consumption.Consequently,the communication between resource-constrained nodes and servers is hard to be supported by these protocols.Therefore,the security problems of communication between the resource-constrained nodes and the application servers is studied in this paper.The main contributions of this article are as follows:(1)A lightweight security scheme,which is suitable for the communication between the resource-constrained nodes and the application servers,is designed in this research.This strategy can realize bidirectional authentication and data encryption transmission between nodes and servers,which improves the security of data transmission between them.In this security scheme,the authentication center is applied to solve the security problems of the communication between the restricted nodes and the application servers.This technique can reduce the computational load and energy consumption on the nodes in the process of identity authentication and key negotiation.Besides,a safe scheme,which is used to configure parameters for the node,is designed to ensure the safety of the internal parameters of the node.Finally,the security of the scheme is proved by theoretical analysis and BAN logic is utilized to formally prove the correctness of the scheme.(2)The authentication center with the background management platform is designed to provide visual management for nodes and servers,which can enhance the scalability of the scheme.In addition,the scheme is applied to the medical waste traceability system based on the Internet of things technology,which proves the availability of the scheme with practical application scenarios.In the last,a set of comparative experiments is designed based on the system,and the experimental results show that the scheme has higher communication efficiency.