Layla A. A. El-Sayed

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Research on Wireless Sensor Networks (WSNs) has recently received much attention as they offer an advantage of monitoring various kinds of environment by sensing physical phenomenon. Many WSN protocols and applications assume the knowledge of geographic location of nodes to report data that is geographically meaningful and services. Locations of nodes can(More)
Embedded systems such as mobile devices are currently ubiquitous. The performance potential of these devices is rapidly improving by incorporating multi-core and GPU technologies, and is rapidly catching up with the workstation platforms. Nevertheless, the heterogeneity of the underlying hardware as well as the low-power constraints severely limit(More)
Data Security is the most important issue nowadays. A lot of cryptosystems are introduced to provide security. Public key cryptosystems are the most common cryptosystems used for securing data communication. The common drawback of applying such cryptosystems is the heavy computations which degrade performance of a system. Modular multiplication is the basic(More)
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