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Open IPTV has attracted considerable attention and is expected to bring great changes in the IPTV service area. However, because of its openness and IP network characteristics, security is one of the major issues hindering its commercialization. For IPTV, several security mechanisms for user authentication and content protection have been applied to make(More)
Detecting network intrusion has been not only important but also difficult in the network security research area. In Medical Sensor Network(MSN), network intrusion is critical because the data delivered through network is directly related to patients' lives. Traditional supervised learning techniques are not appropriate to detect anomalous behaviors and new(More)
In this paper, we propose an energy-efficient and secure channel group key establishment and rekeying management scheme for mobile IPTV service. Compared with traditional IPTV service, mobile IPTV is much more vulnerable to various attacks, and membership management is more complicated because of the user mobility. Our scheme provides a group key management(More)
In recent years enhancing the capability of network services automatically and dynamically through SDN and CDN/CDNi networks has become a new field of research. These future network architectures pose both a blessing and a threat in the network field. Such network architectures can optimize the overall network services by analyzing the topology, traffic(More)
M2M(Machine-to-Machine) communication is considered to be one of the major issues in future network. Especially, M2M will bring various benefits in wireless communications when it is interconnected with cellular network. Considering the characteristics of cellular M2M network, traditional security solutions are not practical to apply because the cellular(More)
Wireless Sensor Network (WSN) is a very attractive technique to support Ubiquitous Pervasive Computing(UPC) such as Medical Sensor Network (MSN) due to many merits such as compact form, low-power, and potential low cost. However, the more the sensor nodes exist, the more difficult the manager monitors sensor nodes individually, and faults of the sensing(More)
For secure sensor network communication, pairwise key setup between sensor nodes and a data transmission are essential. In this paper, we propose a cluster-based key setup and a data transmission mechanism based on hexagonal clustered network architecture. By adopting three dimensional coordinates, pairwise keys between neighboring nodes can be established(More)