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Wireless sensor networks will play an important role in the next generation pervasive computing. But the character of wireless communication brings a great challenge to the security management measures used in the communication protocols. These measures are different from conventional network security management methods. This paper proposed a security management model for self-organizing wireless...
At present, isolated and single network security system can no longer meet the objective needs. As a new type of network, trusted network can make up many of the traditional network security flaws. Based on the analysis of the background and motivation of trusted network, the article discussed the concept and basic properties. It analyzed the architecture of trusted network and the functions of its...
The traditional intrusion detection systems (IDSs) play an important role in monitoring our network, but they lack abilities in automated intrusion response. Nowadays with the rapidly increased complexity and speed of the attacks spread, there has an urgent need in automated intrusion response. This field has already aroused wide concern. The main obstacle now lies in that accurate measurement of...
In the past several years, the alert correlation methods have been advocated to discover high-level attack scenarios by correlating the low-level alerts. The causal correlation method based on prerequisites and consequences has great advantages in the process of correlating alerts. But it must depend on complicated background knowledge base and has some limits in discovering new attacks. The cluster...
Nowadays, it becomes more and more important to construct high-level attack scenarios from low-level intrusion alerts reported by intrusion detection systems (IDSs). Some methods have been presented to resolve this problem. These methods have different strengths. However, they also have different limitations. In order to build complicated attack processes accurately, this paper uses cluster and correlation...
Alert correlation is the method used to analyze the implicit relation among attacks so as to discover real threats. There already have been several proposals on alert correlation, such as the methods based on predefined knowledge and the methods need no predefined knowledge. But they all have their drawbacks. Generally, the predefined knowledge based methods have no ability to recognize unknown attacks,...
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