Analysis and Review of Cloud Based Encryption Methods

Abstract

Data security plays a crucial role in cloud computing. Cloud storages are secured and managed centrally by cloud service providers. Data stored in cloud is secured by encrypting them with the help of various encryption techniques and models. Encryption is very important from a data confidentiality point of view and should match the system and security requirements. Complex encryption methods increase the computational time of the cloud system whenever any data query is being processed. The encryption method has to produce a cipher text which cannot be easily predicted or decrypted without the encryption key. This paper discusses various encryption methods being developed and provides an analysis and comparative study on them.