Research And Implementation Of The Smart Home Security Gateway

The internet of things is considered to be the third wave of the world information industry after the computer and internet.It aims at building the era of intelligent life,making life more comfortable and convenient,and closely related to the public the public is the field of smart home.With the outbreak of public demand for intelligent devices,the output of products is increasing.However,most of these devices lack safety considerations.There are numerous attacks on smart home,and the trend of attack since 2016 is botnets.In the US,Germany and other places,intelligent devices have been infected with malicious programs,forming botnets,resulting in large-scale network paralysis.Because of the wide distribution and large amount of intelligent equipment,once the zombie network is formed,huge economic losses will be brought,which affects the security of the life and property of the users and the stability of the country and the society.Moreover,these infections viruses continue to mutate and wait for the next round of attacks.Therefore,it is very important to take necessary safety measures for smart devices.Because of the limited resources of the intelligent device,the lack of unified standards and norms and other characteristics,there are few security measures on smart home products,not to mention the defense measures aimed at intelligent home related attacks.In this paper,based on the intelligent home platform of laboratory projects,a high practical security solution is proposed,and the intelligent home security gateway which can detect multiple attacks in the dual network is studied,designed and implemented.Aiming at the existing problems in smart home safety,the following works are done.(1)Study the current development status of smart home safety and smart home security gateway,and put forward a new smart home security gateway solution according to the shortage of existing technology.In addition to the detection and defense functions of the traditional network attack,the new smart home security gateway also adds some measures,such as detection,defense and real-time alarm specially aimed at smart home application-layer protocol attacks.(2)According to the shortcomings of the existing security gateways,the gateway routing is not safe,the gateway is integrated with wireless routing function,acting as a dual network adapter.In addition to defending the wireless hot spot related attacks,it carry out intrusion detection and defense to the gateway itself,and alarm the anomaly in real time.(3)According to the characteristics of zombie network,the flow analysis model of dualnetwork card is designed and implemented in view of the shortcomings of packet feature detection and traffic analysis.The effective detection and defense of the botnet against both the external network attack and the internal network attack,the real-time alarm report gateway traffic analysis abnormal results,and monitor the security of the internal and external network environment of the smart home.(4)Design and implement smart home security gateway access control model,design a unique gateway access control model for gateway routing and packet forwarding,implement strict access control to the incoming and outgoing packets about gateway,which guarantee not only the devices communicating with the smart home protocol,but also other devices connected to the wireless hot spot of gateway.(5)Design and implement network attack and defense experiment to verify the security function of smart home security gateway one by one.By comparison,it is concluded that the gateway has more advantages in defense function than the same type of system,reflecting the application value of this gateway.According to the research and implementation of the smart home security gateway,this paper makes up for the shortcomings of the existing solutions,and provides a reference for the research and application of intelligent home security,which is conducive to the development of the security of intelligent home,and even the security of the Internet of things in China.