A Secure and Cost-effective Framework for Semi-trusted Database

Abstract

Database security has become a vital issue in modern Web applications. Critical business data in databases is an evident target for attack. Database encryption has become a critical technique in the security mechanisms of database. This paper proposed a secure framework for semi-trusted database in which data is encrypted in a mixed form using many keys owned by different parties. That can provide security and cost-effective by reducing the server tasks required to perform encrypt and decrypt operations. The framework aims to ensure the requirements of secure semi-trusted database include; Data Confidentiality and User Data Privacy and Data Integrity. The proposed framework is strengthening the protection of sensitive data even if the database server is attacked at multiple points from the inside or outside.