Abstract:

The perception layer is the information source of the Internet of things, and also the basis for the application of the Internet of things, the security problem is the primary problem of the whole Internet of things. With the continuous development of network information security, despite the traditional network security management system in the network security can achieve interoperability between the three levels, the security system for the Internet of things sensing layer nodes and between nodes is not mature. Since the nodes are easily controlled, attaches are vulnerable to attack them. When the nodes communicate with each other, it is very easy to be monitored, stole, faked, and destroyed, and so on. From this, it is necessary to strengthen the identity authentication of the Internet of things to ensure the security of the whole system. This paper introduces the main security threats and related security mechanisms of the Internet of things, based on the discrete logarithm problem solving elliptic curve encryption algorithm.

Key words: IoT perception layer, node, security, authentication