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In performance evaluations of communication and computer networks the underlying topology is sometimes modeled as a random graph. To avoid unwanted side effects, some researchers force the simulated topologies to be connected. Consequently, the resulting distribution of the node degrees does then no longer correspond to that of the underlying random graph model. Being not aware of this change in the...
In order to assess the security of network information system, many graph-based approaches have been proposed. Attack Graph is the most influential one. But attack graphs grow exponentially with the size of the network. In this paper, we propose an improved access graph based model to analyze network security. As a complement to the attack graph approach, the access graph is host-centric approach,...
Configuring firewalls is a difficult task. The reason is that the effects of firewall rules cannot be seen during the configuration time. As a result, errors and loopholes in firewall rules are discovered only at the run time and they often cause attacks. In this paper, we develop a graph-based method for analyzing firewall rules with services. Our new model provides advantages over all existing methods...
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