Rabia Sirhindi

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Denial of Service (DoS) attacks pose a serious threat to wireless networks. In WiMAX a large number of authentication requests sent to the Base Station (BS) by rouge Subscriber Stations (SSs) might lead to a DoS attack. Since authentication involves exchanging and checking certificates of both parties and is a computationally heavy task, the BS would(More)
Session Initiation Protocol (SIP) based Voice over Internet Protocol (VoIP) services has attained much attention over the last decade. SIP is an extensively used Internet protocol for real time communication and establishment of media sessions. However, it is vulnerable to several security attacks due to its open architecture and text-based nature of SIP(More)
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