Enforcing Privacy in Cloud Databases

TL;DR

This paper surveys mechanisms for ensuring data privacy in cloud databases, highlighting current challenges and research gaps in securing sensitive information in cloud-based database services.

Contribution

It provides a comprehensive overview of existing privacy-preserving techniques for cloud databases and discusses the limitations and future research directions.

Findings

Identifies key privacy challenges in cloud database outsourcing.

Highlights limitations of current privacy-preserving mechanisms.

Discusses open research problems in cloud database security.

Abstract

Outsourcing databases, i.e., resorting to Database-as-a-Service (DBaaS), is nowadays a popular choice due to the elasticity, availability, scalability and pay-as-you-go features of cloud computing. However, most data are sensitive to some extent, and data privacy remains one of the top concerns to DBaaS users, for obvious legal and competitive reasons.In this paper, we survey the mechanisms that aim at making databases secure in a cloud environment, and discuss current pitfalls and related research challenges.