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This paper presents vulnerabilities of UMTS access domain security architecture. The security architecture of UMTS offers some protection against known threats including false base station attacks, man-in-the-middle attacks and replay attacks. The system also successfully ensures user data confidentiality and signaling data integrity. However, a few novel vulnerabilities have been identified in this...
This paper presents a review of security vulnerabilities found in IEEE 802.16e that are still unaddressed. In particular vulnerabilities leading to Denial of Service (DoS) attacks on IEEE 802.16e based network are discussed in detail. These vulnerabilities include unprotected Network entry, unencrypted management communication, unprotected management frames and weak key sharing mechanism in multicast...
Security is highly critical in wireless communication, as wireless media is vulnerable to attacks. Mobile WiMAX is a new standard and it opens new horizons for security researchers. In this paper, authorization protocol for both versions of PKM in WiMAX has been analyzed. Possible attacks are also considered including interleaving, replay and suppress replay attack and a methodology is presented to...
Cognitive radio based IEEE 802.22 deploys the concept of maximum resource utilization through dynamic resource sharing. Inter base station resource sharing is dynamic process in IEEE 802.22 and is accomplished by exchange of control messages between the neighboring base stations. Insecure transmission of control channels open vulnerable holes for the denial of service attacks on base station. First...
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 allocate most of its resources for the process...
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