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Denial of Service (DoS) attacks on 802.11 wireless LANs can be caused by management frames sent by rogue access points. Unfortunately, such attacks can be successful even if the wireless network is protected by a high-level security protocol such as WiFi Protected Access Version 2 (WPA2). We present a novel client-based scheme for the prevention of such intrusions. By using a Medium Access Control...
Sensor-medium access control (S-MAC) protocol is a well-known MAC protocols designed for wireless sensor networks (WSNs). In this paper, we examine security vulnerability in S-MAC and analyze the power consumed at each stage of S-MAC according to vulnerability of denial of service (DoS) attack. From our analytical results, it can be induced that there is a need for a power-efficient authentication...
In wireless ad hoc networks, the performance of the media access control (MAC) protocol has significant impact on the overall network performance. In contention-based MAC protocols, nodespsila access to the shared channel is not synchronized, and they contend for the channel whenever there are packets in their buffers ready to be sent. To reduce self-contention, Fast-Forward Mechanism and Quick Exchange...
A mobile ad hoc network is a network without any infrastructure or service access points. In wireless ad hoc networks, the performance of the media access control (MAC) protocol has significant impact on the overall network performance. In contention-based MAC protocols, nodes' access to the shared channel is not synchronized, and they contend for the channel whenever there are packets in their buffers...
The applicability of the security protocols, such as WS-Security, WS-Trust, WS-SecureConversation, WS-Federation, WS-Authorization, and WS-SecurityPolicy, is limited as they only protect SOA (Service Oriented Architecture) communication between two trusted parties with an established security association. The pervasiveness of Web services and SOAP API that can be invoked by anonymous consumers introduces...
Wireless networks have gained overwhelming popularity over their wired counterpart due to their great flexibility and convenience, but access control of wireless networks has been a serious problem because of the open medium. Passwords remain the most popular way for access control as well as authentication and key exchange. But existing password-based access control protocols are not satisfactory...
IP networks fundamentally rely on the address resolution protocol (ARP) for proper operation. Unfortunately, vulnerabilities in the ARP protocol enable a raft of IP-based impersonation, man-in-the-middle, or DoS attacks. Proposed countermeasures to these vulnerabilities have yet to simultaneously address backward compatibility and cost requirements. This paper introduces the ticket-based address resolution...
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