Security Mechanism in the Internet of Things by Interacting HTTP and MQTT Protocols

The Internet of Things (IoT) links many devices to the internet to make the environment smarter. Its applications use varies from the habitat (the Smart Home, for example the automatic or remote control of the temperature) to that of the city (Smart Cities with for example the management of public lighting), transport (e.g. road traffic supervision) and industry (industrial radio networks). Wireless sensor networks consider a very important technology in the Internet of Things. They make it possible to present the characteristics and the state of the objects (or environments) in which they are implanted (or deployed) like web services on the Internet. Nevertheless, the opening of sensor networks to the internet presents a serious problem from the standpoint of security because the networks of sensors connected to the internet become accessible remotely and in a ubiquitous way by any malicious host on the internet. In this paper, we have proposed a mechanism for the security of the human-to-thing by interacting HTTP and MQTT protocols in IoT. The proposed solution protects end-to-end human-to-object communications, while considering the material and technological heterogeneities between the devices involved, with a significant mitigation of the impact of denial of service threats which severely menace IoT's built-in sensor networks.