PPaaS: Privacy Preservation as a Service
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Personally identifiable information (PII) can find its way into cyberspace through various channels, and many potential sources can leak such information. To preserve user privacy, researchers have devised different privacy-preserving approaches; however, the usability of these methods, in terms of practical use, needs careful analysis due to the high diversity and complexity of the methods. This paper presents a framework named PPaaS (Privacy Preservation as a Service) to maintain usability by employing selective privacy preservation. PPaaS includes a pool of privacy preservation methods, and for each application, it selects the most suitable one after rigorous evaluation. It enhances the usability of privacy-preserving methods within its pool; it is a generic platform that can be used to sanitize big data in a granular, application-specific manner by employing a suitable combination of diverse privacy-preserving algorithms to provide a proper balance between privacy and utility.
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