Voice communications through internet uses VOIP which includes several protocols while its secrecy is very important issue. SIP is the most important signaling protocol whose attack detection may help system immunization. This paper is dedicated to the issue of SIP regi More
Voice communications through internet uses VOIP which includes several protocols while its secrecy is very important issue. SIP is the most important signaling protocol whose attack detection may help system immunization. This paper is dedicated to the issue of SIP registration flood attacks. Attackers can send registration signals which have several dangers for registration server. In this paper, SIP register flood attacks is investigated by details and the effects of attack over registration server is illustrated. Finally, the effects of attack, regarding the ratios compared with a regular situation of the network, are evaluated in experiments done in a real network. Moreover, instead of Hellinger distance, Kullback–Leibler distance is used for register flood attacks detection and corresponding ROC curves show this approach has better performance.
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