Engineering of secure multi-cloud storage |
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| Affiliation: | 1. Humboldt-Universität zu Berlin, Institute of Information Systems, Spandauer Str. 1, 10178 Berlin, Germany;2. Hochschule für Telekommunikation Leipzig (HfTL), Chair of Business Intelligence and Data Science, Gustav-Freytag-Str. 43-45, 04277 Leipzig, Germany;3. University of Potsdam, Chair of Business Informatics, esp. Social Media and Data Science, August-Bebel-Str. 89, 14482 Potsdam, Germany;1. Water, Energy and Environment Laboratory, Sfax Faculty of Sciences, POB 1171, Soukra Road km 3.5, Sfax 3000, Tunisia;2. Sedimentary Petrology, B20, Liège University, Sart-Tilman, Liège 4000, Belgium;3. Laboratory of Georessources, Materials, Environment and Global Changes, Sfax Faculty of Sciences, POB 1171, Soukra Road km 3.5, Sfax 3000, Tunisia;4. Water, Energy and Environment Laboratory, Sfax National Engineering School, POB 1178, Soukra Road km 4, Sfax 3038, Tunisia;1. Department of Computer Science, University of São Paulo, Brazil;2. Hewlett Packard Laboratories, Palo Alto, USA |
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| Abstract: | This article addresses security and privacy issues associated with storing data in public cloud services. It presents an architecture based on a novel secure cloud gateway that allows client systems to store sensitive data in a semi-trusted multi-cloud environment while providing confidentiality, integrity, and availability of data. This proxy system implements a space-efficient, computationally-secure threshold secret sharing scheme to store shares of a secret in several distinct cloud datastores. Moreover, the system integrates a comprehensive set of security measures and cryptographic protocols to mitigate threats induced by cloud computing. Performance in practice and code quality of the implementation are analyzed in extensive experiments and measurements. |
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| Keywords: | Cloud computing Data exchange Security Privacy |
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