Research And Implementation Of Device Plug And Play Access Authentication In Digital Home

Digital homes have the characteristics of separation of device access and authentication,tight coupling of manufacturers and access authentication,and complex access configurations.Plug-and-play access authentication for mass-differentiated devices is a bottleneck problem for the rapid development of digital homes.The UPn P Device Security mechanism provides device access authentication services,defines the standards for unified access authentication,and implements zero-configuration access.However,UPn P Device Security has problems with incompatible resource constrained devices,untrusted control points,and unreliable authentication mechanisms.This article focuses on the plug-and-play device access authentication system design and conducts the following two aspects of research work.For Device Security mechanism is not compatible with the problem of resource constrained devices,device ID,vendor ID,token information,etc.are bound with the device hardware,a multi-factor mass differentiation device authentication mechanism is proposed,and device registration is designed.Access and update protocols are compatible with devices with low or no computing power,which ensures the authenticity and legitimacy of devices in digital homes.For the problem that the control point is not trusted and the authentication mechanism is not reliable,the device authentication server with multi-algorithm multi-key decryption function is used as a UPn P device to provide a plug-and-play device access authentication architecture;the UPn P device authentication server performs the control point the certification ensures the credibility of the control point itself.Based on the above methods,a comprehensive certification service cloud center is designed to achieve high availability of heterogeneous device access authentication.Based on the above research,a plug-and-play device access authentication system was designed and implemented.Through the system test,the feasibility of the proposed method was verified.The experimental results show that the time overhead of the method is reduced by an average of 10% compared with the GSA scheme and the storage cost is calculated.Small,wide application scope,realize the plug-and-play access authentication of heterogeneous devices.