Security Issues in Outsourced XML Databases

Abstract

In an outsourced XML database service model, organizations rely upon the premises of external service providers for the storage and retrieval management of their XML data. Since, typically, service providers are not fully trusted; this model introduces numerous interesting research challenges. Among them, the most crucial security research questions relate to data confidentiality, user and data privacy, queryassurance, secure auditing, and secure and efficient storage model. Although there exists a large number of related research works on these topics, the authors are still at the initial stage and the research results are still far from practical maturity. In this chapter, they extensively discuss all potential security issues mentioned above and the existing solutions, and present open research issues relevant to security requirements in outsourced XML databases.