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The number of location-aware services over the Internet continues growing. Some of these require the client’s geographic location for security-sensitive applications. Examples include location-aware authentication, location-aware access policies, fraud prevention, complying with media licensing, and regulating online gambling/voting. An adversary can evade existing geolocation techniques, e.g., by...
Cloud subscribers would like to verify the location of outsourced data in the cloud datacenters to ensure that the availability of data satisfies the Service Level Agreement. Cloud users may not have access to their outsourced data in the event of operational failures in datacenters or occurrence of natural disasters and/or power outages. Recently, IP geolocation techniques have been proposed to locate...
The accurate geographic location of the IP address is useful and important in different areas nowadays, like targeting online advertisement, increasing network availability and avoiding large-scale network attack. So it attracts a lot of researchers and industries to study. In this paper, we will introduce the chief methods of the IP geolocation in the world and put forward our suggestions and prospected...
With the scaling of CMOS technology, critical paths in digital circuits have become largely sensitive to process, voltage and temperature variations as well as to aging effects, generally resulting into a mismatch between the simulated path delay of the circuit obtained with CAD tools and the actual path delay on the manufactured chip. In order to solve this issue and to also avoid conservative strategies...
With the scaling of CMOS technology, critical paths in digital circuits have become largely sensitive to process, voltage and temperature variations as well as to aging effects, generally resulting into a mismatch between the simulated path delay of the circuit obtained with CAD tools and the actual path delay on the manufactured chip. In order to solve this issue and to also avoid conservative strategies...
In this paper, the authors present a study of a network fingerprinting classification using monotone multilayer perceptron neuronal networks. It is part of an overall performance engineering approach. The classification is used to increase the performance of an active queue management on the quality of service for a next generation public safety communication system based on an IP overlay network...
IP geolocation services are playing an increasingly important role in Web applications. Landmark-based IP geolocation can gain better IP geolocation performance. However, the accuracy of landmarks is still an urgent issue to address. The paper proposes a filtering landmark mechanism to guarantee the accuracy of landmarks. First, a Ping-Delay Coarse Filtering Landmark algorithm (PCFL) is proposed to...
The geographical location of Internet IP addresses is important for academic research, commercial and homeland security applications. While commercial databases claim to have a very high level of accuracy, the correctness of their databases is questionable. Academic tools, based on delay measurements, were shown to have a large range of error. We present a novel algorithm that crawls the Internet...
We propose a novel, passive, nonintrusive method to measure the one-way delay of all the packets flowing between customer sites connected by a provider backbone. Our approach does not sample traffic and requires the injection of a negligible amount of control packets, possibly none. This is obtained by deploying a Measurement Agent in each customer site and exploiting a covert channel to carry information...
To address the problem of accurate timing characterization, in this paper, we take the mode dependent characterization approach further and apply the notion of the global false path, the functional delay analysis between modes to a previous timing analysis of circuits and propose a new timing characterization method. Our method is applied to ISCAS-85 benchmark circuits and an industrial IP block....
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