A Study of Data Security Integrity in Cloud Computing

COMPUTER SCIENCE

Cloud can be envisioned as a working model for providing an environment which enables the cloud users to access a shared pool of virtualized and configurable computing resources that can be easily provisioned as services on the pay-per-use manner from the cloud service providers. Amongst the services, the cloud storage services gain more attraction due to the growth of digital data at an incredible rate. By utilizing the cloud storage services, the cloud users can be relieved from the burden of local data storage and maintenance. But, the users are unaware of the exact location of the remotely stored data. This unique feature imposes many security challenges like data theft, damage of information, disruption of services, loss of privacy, etc., on the data stored in the cloud. In order to alleviate the challenges, this research aims at developing model for cloud computing so that the data stored in the cloud are confidential, integral and authenticated. Cloud users depend on cloud for storage of massive amount of data. Before storing the data, the data owner should imply the proper security mechanism that ensures confidentiality, integrity and authentication in order to protect the stored data from unauthorized access. In cloud, confidentiality of data can be compromised by applying the attacks like data leakage, phishing and eavesdropping. To overcome this, this research aims at developing a new encryption algorithm called 2-keys symmetric encryption algorithm that can be used for the encryption of massive data. This encryption procedure incurs lesser computation overhead and minimum time for performing encryption and decryption.

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