A Novel Approach to Access Encrypted Cloud Databases by Using Distributed and Concurrent Techniques

Abstract

The cloud database as a service is novel paradigms that can be support several Internet-based applications, its adoption requires the solution of the information confidentiality problems. We proposed a novel architecture for adaptive encryption of public cloud databases that offers an interesting alternative to the tradeoff between the required data confidentiality level and the flexibility of the cloud database structures at time. We demonstrate the feasibility and performance of the proposed solution through a software prototype. A novel architecture for adaptive encryption of public cloud databases that offers an interesting alternative to the tradeoff between the required data confidentiality level and the flexibility of the cloud database structures at design time. This paper proposes a novel architecture for adaptive encryption of public cloud databases that offers a proxy-free alternative to the system. The project demonstrates the feasibility and performance of the proposed solution through a software prototype. The proposed architecture manages five types of information: plain data represent the tenant information; encrypted data are the encrypted version of the plain data, and are stored in the cloud database; plain metadata represent the additional information that is necessary to execute SQL operations on encrypted data; encrypted metadata are the encrypted version of the plain metadata, and are stored in the cloud database; master key is the encryption key of the encrypted metadata, and is known by legitimate clients.
Keywords: Cloud; Security; Confidentiality; Secured Baas; Database