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)
Security has always been a great concern for the networks and telecommunication operators and customers. For wireless systems, security support is even more important to protect the users as well as the network. Since wireless medium is available to all, the attackers can easily access the network and the network becomes more vulnerable for the user and the(More)
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