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A major concern for network intrusion detection systems is the ability of an intruder to evade the detection by routing through a chain of the intermediate hosts to attack a target machine and maintain the anonymity. Such an intermediate host is called a stepping-stone. The intruders have developed some evasion techniques such as injecting chaff packets. A number of algorithms have been proposed to...
Distributed detection of information flows spanning many nodes in a wireless sensor network is considered. In such a system, eavesdroppers are deployed near several nodes in the network. As data may be encrypted or padded, the eavesdroppers can only measure packet timestamps. Each eavesdropper, given a sequence of timestamps, must compress the information for transmission to a fusion center. Given...
Packet sampling supports a range of Internet measurement applications including characterizing the spatial flow of traffic through a network for traffic engineering purposes, identifying the flows utilizing a link for billing purposes or for intrusion detection, and monitoring end-to-end data-path quality. However, packet-sampling mechanisms must be robust to adversarial hosts that craft packet streams...
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