Expressive and Deployable Dynamic Query Forms of the Database in Cloud Secure Environment

Abstract

Cloud computing is an emerging computing technology that enables user to store data into the cloud server to
improve scalability and on-demand services. Not all cloud providers are trustworthy. To protect data privacy against
untrusted cloud service providers, existing solution apply cryptographic methods. However, sharing cloud data among
authorized users is still a challenging issue, especially when dealing with dynamic user groups. In this paper, we propose
a secure access control by creating dynamic query forms according to the roles of the user in cloud environment. We use
Light Weight Symmetric Encryption Algorithm. This algorithm aims at encrypting the data in the database and encrypts
all forms of queries without any changes in the database structure. By creating dynamic query forms, there exits privacy
in the data that is stored in the cloud.