Security and Privacy for Big Data

Security and privacy is one of the critical issues for big data and has drawn great attention of both industry and research community. Following this major trend, in this chapter we provide an overview of state-of-the-art research issues and achievements in the field of security and privacy of big data, by highlighting recent advances in data encryption, privacy preservation and trust management. In section of data encryption, searchable encryption, order-preserving encryption, structured encryption and homomorphic encryption are respectively analyzed. In section of privacy preservation, three representative mechanisms including access control, auditing and statistical privacy, are reviewed. In section of trust management, several approaches especially trusted computing based approaches and trust and reputation models are investigated. Besides, current security measures for big data platforms, particularly for Apache Hadoop, are also discussed. The approaches presented in the chapter selected for this survey represent only a small fraction of the wide research effort within security and privacy of big data. Nevertheless, they serve as an indication of the diversity of challenges that are being addressed.