Deteciton and Defence of Low-rate Denial of Service Attack
AN Junke · Bulletin of Science and Technology · 2012
The adaptive mechanism of exisitng network protocols have some defects which can be utilized by low-rate denial of service attack.LDoS periodically sends low-rate pulse,which causes discontinuous link congestion.It is more difficult to recognize and defend because its low-rate feature.We first analyzes the principles of LDoS attack and the status of network by simulation.Then two basic signatures of LDoS attack are extracted as significant basis for our algorithm.At last we propose an improved method to detect and defend the LDoS attack more accurately.It showed better performance in experiments,to recognize LDoS attack effectively and increase the throughput of the link.