A detection method for Internet of Things packet drop attack and Internet of Things tree system

Abstract

The invention provides a detection method for a malicious packet dropping attack of the Internet of things. The detection method comprises the following steps of: calculating a natural packet receiving interval variance and calculating an actual packet receiving interval variance; and judging whether the actual packet receiving interval variance is larger than a first threshold obtained according to the natural packet receiving interval variance, if the actual packet receiving interval variance is larger than the first threshold, determining that an Internet of things tree system falls into the malicious packet dropping attack. In a conclusion, according to the Internet of things tree system, the natural packet receiving interval variance obtained when the Internet of things tree system does not fall into the attack and the actual packet receiving interval variance obtained when an information packet is actually received are respectively calculated; and when the actual packet receiving interval variance is larger than the first threshold obtained according to the natural packet receiving interval variance, the Internet of things tree system falls into the malicious packet dropping attack. Therefore, according to the technical scheme of the invention, a routing node and a terminal node do not need to return acknowledgement information, so that communication expense in the Internet of things tree system cannot be extra affected. The invention also provides the Internet of things tree system.

Description

technical field [0001] The invention relates to the field of communications, in particular to a method for detecting packet discarding attacks in the Internet of Things and a tree-shaped system for the Internet of Things. Background technique [0002] The Internet of Things refers to the use of radio frequency identification (RFID), infrared sensors, global positioning systems, laser scanners and other information sensing equipment to connect items to the Internet according to the agreed protocol to exchange and communicate information to realize the realization of the items. A network that intelligently identifies, locates, tracks, monitors and manages. In fact, IoT is a type of wireless network. Unlike wired networks and other wireless networks, IoT has limited energy, storage, and bandwidth, lacks central detection and management nodes, open communication media, huge number of nodes, lack of clear network defense boundaries, etc. All these characteristics All make the I...

AI Technical Summary

Problems solved by technology

The handshake mechanism method does not require additional hardware overhead, but because the intermediate routing node and the terminal node are required to return the handshake information when receiving the packet, this method will increase additional communication overhead

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