Computer Science – Cryptography and Security
Scientific paper
2012-04-25
Proceedings of ACM International Conference on Advances in Computer, Communication and Computing (ICAC3-2008), pp. 503-509, Ja
Computer Science
Cryptography and Security
arXiv admin note: substantial text overlap with arXiv:1203.2400
Scientific paper
10.1145/1523103.1523203
In this paper, an analytical model for DDoS attacks detection is proposed, in which propagation of abrupt traffic changes inside public domain is monitored to detect a wide range of DDoS attacks. Although, various statistical measures can be used to construct profile of the traffic normally seen in the network to identify anomalies whenever traffic goes out of profile, we have selected volume and flow measure. Consideration of varying tolerance factors make proposed detection system scalable to the varying network conditions and attack loads in real time. NS-2 network simulator on Linux platform is used as simulation testbed. Simulation results show that our proposed solution gives a drastic improvement in terms of detection rate and false positive rate. However, the mammoth volume generated by DDoS attacks pose the biggest challenge in terms of memory and computational overheads as far as monitoring and analysis of traffic at single point connecting victim is concerned. To address this problem, a distributed cooperative technique is proposed that distributes memory and computational overheads to all edge routers for detecting a wide range of DDoS attacks at early stage.
Gupta Bhupendra
Joshi R. C.
Misra Manoj
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