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Since the launch of iPhones in 2007, smartphones become very popular these days. Because of their small sizes and high mobility, smartphones are easily lost or stolen. When people lost their smartphones, they are worried the private data stored in the phones may be revealed to strangers. This research proposes a novel approach for mobile data protection. Mobile usage data is first collected and usage...
Embedded systems became more and more pervasive in our world, whereas the security problem severely influence its credibility. This paper presented a security solution for embedded systems, which is called TFSES (security embedded systems base on TCM and FPGA). In this solution, a security FPGA checked the integrity of instructions and data in flash chip before running of the embedded processor. The...
Trust plays an important role in a Web-based social network. Given the open and dynamic nature of such an online virtual community, trust evaluation relies on transitive relationships among the direct and indirect neighbors of an evaluator. We propose a framework to evaluate the trustworthiness of a given node (e.g., a user) based on a set of trust chains and a trust graph. We will also systematically...
Mobile handheld devices such as smart cellular phones and personal digital assistants (PDAs) are easily lost because of their small sizes and high mobility. Personal data like addresses and telephone numbers stored in the devices are revealed when the devices are lost. This research proposes a novel approach of applying handheld usage pattern identification to handheld data protection. Handheld usage...
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