IoT based Smart home : Security Aspects and security architecture

Internet of Things (IoT) in general sense refers as the world of connected devices and physical objects which contains sensors, microcontrollers, software components to connect, store, actuate and shared his own date on different machines. IoT enabled home appliances plays an important role in day-to-day life and when these devices become connected and controlled remotely or with single click thorough web enabled application along with other services they form a smart home network. This kind of networking of physical objects or non-electronic home's objects can interconnect through IoT. In Smart home communication security is major concern while device communication or stored sensitive data to maintain the privacy of the data. A hacker or intruder can easily attack on smart home Router, gateway or IoT enabled nodes to get access of data because IoT devices contain a little or no built in security mechanism available on board. There several attacks reported through in year 2016 and 2018 base on Mirai dubbed botnet and VPNFilter malware respectively to get access of smart home data. This paper proposed a secure smart home architecture with cloud, secure fog with firewall, security analysis engine. The firewall system is in between of internet and fog layer to protect the unauthorized data access and internet threats. The security analysis engine monitor the device communication and transmission of data and keeping log the same and also generate alerts for any kind of misuse or suspected communication between nodes. This security system will enhance the consumer trust to implement smart homes technology.