Earticle

Recent years have witnessed a dramatic rise in the popularity of integrating more CPU cores into one unit, and therefore giving more computing power to the new computer system. With multi-core architecture we can answer many security problems, especially regarding network level activities which are recorded in real-time with little performance loss. On the other hand, network level accountability is becoming more demanding in the area of network security research. People are trying to allow networks to easily locate corresponding network entities that are responsible for certain traffic flows over the Internet. These two areas have made our computer systems more powerful and secure. In this paper, we present a design for accountability in multi-core networks. Theoretically, with multi-core architecture implemented in routers, along with packet recording and later auditing, we can make the Internet of the future more secure and accountable.

The growth in the variety and use of wireless networks has greatly increased the urgency to identify and devise security approaches to protect them. In this article, we first propose a secure assisted handover decision. This mechanism is carried out while the mobile station (MS) moves between different domains, to allow users to fulfil an effective and reliable handover as well as a secure access to services offered by the wireless local area network. Second, we propose a new scheme, called Selective Pipelined Packet Marking for WLAN Networks (SPMW). This scheme is used for IP traffic source identification for tracing denial of service (DoS) attacks. The approach follows the IP traceback approach proposed in wired networks. Our analysis study shows that the traffic overhead introduced by the traceback scheme does not affect the network performance.