PPaaS: Privacy Preservation as a Service

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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