基于NDN的物联网安全通信技术研究

In recent years, the Internet of Things (IoT) industry has developed rapidly. Today\'s IoT systems mainly use the TCP/IP protocol. However, observations so far indicate that the originally designed TCP/IP protocol is not suitable for the IoT environment. This paper analyzes the technical challenges of TCP/IP applied to security in the IoT environment, and proposes to apply NDN to the Internet of Things to realize secure communication of devices. NDN guarantees communication security directly at the packet level. Its hierarchical naming structure binds the name to the key. According to the device trust relationship in the scenario, a device trust model based on the directed graph is proposed to minimize the signature verification path, reduce the signature verification overhead. At the same time, the device names are matched by regular expressions defined in the finite state machine to automate the service access control of the device.