Secure Data Outsourcing Based on Threshold Secret Sharing; Towards a More Practical Solution

Database outsourcing is a noteworthy solution to improve quality of services while reducing data management costs. When data is stored and processed out of the territory of its owner, security becomes the first concern. Confidentiality of the outsourced data, correctness assurance of query results, and preserving users' access privacy are the primary requirements of secure data outsourcing. Nevertheless, most of research activities concentrate on confidentiality based on different encryption schemes. This paper reports some aspects of our ongoing research on secure data outsourcing plus our future directions. We propose a framework to provide confidentiality and privacy based on the threshold secret sharing. We discuss the extension points of the framework to satisfy other requirements of secure data outsourcing as well.