Detecting Technology of Network Storage Covert Channel Based on OPTICS Algorithm

Nowadays, with our enhanced technology, network security has gradually been valued by more and more people. Network covert channel, as an important area of network security, was put forward these years. On the one hand, covert channels provide new and safe communication environment for network communication. However, on the other hand, some illegal persons are exploited to spread viruses, trojans, and so on. Therefore, the research on covert channels is particularly important. According to the resource attributes, network covert channels can be divided into two parts, storage-based channels and timestamps-based channels. The paper will base on the storage-based covert channels, and a new detection method based on clustering algorithm will be proposed. According to the clustering analysis of the values of various parts of the data flow packet, the clustering results are graphically displayed. Determine whether there is a covert channel in the packet. The experimental results show that the detection technology has the advantages of high accuracy, simple algorithm, and intuitive result images, and achieves the desired ideal results.