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Wireless sensor networks (WSNs) consist of hundreds or thousands of small energy-constrained nodes with sensing, computation, and wireless communication capabilities, which are spatially deployed at different locations to sense the physical conditions of the surrounding environment. As a result, WSNs are usually applied to many applications that require unattended operations. However unlike many other...
Data storage is one of the most profitable applications in Clouds. Although a transparent service model is convenient, it may be subject to the loss of data integrity. Our study revealed vulnerabilities in some commercial Cloud storage services. We analyzed the repudiation problem in a Cloud environment. In this paper, we propose a new multi-party non-repudiation (MPNR) scheme to fix the issue. Rationale...
Along with variant advantages, cloud storage also poses new security challenges. Potential users are reluctant to move important and sensitive data to cloud unless security challenges have been well addressed. This paper reports our on-going efforts to address three data security issues in cloud storage: repudiation, fairness, and roll-back attacks. We proposed a novel fair multi-party non-repudiation...
Data storage technologies have been recognized as one of the major dimensions of information management along with the network infrastructure and applications. The prosperity of cloud computing requires the migration from server-attached storage to network-based distributed storage. Along with variant advantages, distributed storage also poses new challenges in creating a secure and reliable data...
The traditional remote data collection has the shortcomings such as the cover scope is small and the corresponding is unreliable, and the wireless network communication has better timeless and does not have the space limitation. The remote data collection and supervisory system based on GPRS/3G (General Packet Radio Service/The 3rd generation communication) network is discussed and designed in the...
This test introduces a method of the design and implementation of peasant-oriented information service system based on WAP (Wireless Application Protocol) and SMS (Short Messaging Service), terminal users can get personalized information services through mobile WAP, SMS and web. This paper introduces the system components, network architecture, interface design, the design of SMS, WAP and WEB site,...
The process of traditional requirements acquisition and analysis is generally completed by domain experts and requirements analysts, which will greatly restrict the requirements modeling automatization degree and userpsilas participation degree in the requirements process. This paper presents a reflective mechanism for evolution of requirements specifications (RMERS) that supports OWL-S. In the phase...
RFID tags have gradually become popular tools for identification of products. To ensure the secure information transaction of tags, a scheme of RFID system authentication protocol based on Elliptic Curve Cryptography (ECC) is proposed. However, hardware implementation of ECC processor for RFID tags is a challenge for the requirements of low-power consumption and low-cost chip resource. In the paper...
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