A Survey on Security Techniques used for Confidentiality in Cloud Computing

Cloud computing is one of biggest topic. In daily life large amount of data is created. To store large amount of data, cloud computing is used. When storing the large amount of data in the cloud, then security is very important for solving number of issues. There are different issues of cloud computing are data security, integrity, authentication and confidentiality. But confidentiality of data is main serious issue of security. Confidentiality provides protection against the unauthorized access of the data and provides access to those users, who have the permission to access the data. In this paper, we will study the different algorithm and techniques of confidentiality in cloud computing like Biometric Encryption, Secret Sharing Schema, HPI_Secure, K-NN classification etc are techniques of confidentiality.