A Business Framework for Securing Data Storage over Cloud Environment using ECC Crypto System

Cloud computing offers a prominent service for data storage known as cloud storage. The flow and storage of data on the cloud environment in plain text format may be main security threat. So, it is the responsibility of cloud service providers to ensure privacy and security of data on storage. The following three parameters confidentiality, integrity and availability decide whether security and privacy of data stored on cloud environment is maintained or not. Cloud computing is set of resources and services offered through the Internet. The rapid growth in field of cloud computing also increases severe security concerns. Security has remained a constant issue for Open Systems and internet, when we are talking about security, cloud really suffers. Lack of security is the only hurdle in wide adoption of cloud computing. Cloud computing is surrounded by many security issues like securing data and examining the utilization of cloud by the cloud computing vendors. This paper proposes a scheme to securely store and access of data via internet. We have used ECC based encryption scheme for storing the encrypted data in cloud because the use of ECC significantly reduces the computation cost, message size and transmission overhead over RSA based PKI as 160-bit key size in ECC provides comparable security with 1024-bit key in RSA. We have designed Secured Cloud Storage Framework (SCSF). This scheme can ensure the security and privacy of the data in the cloud architecture using various schemes. After storing the encrypted data in cloud, integrity of that is checked using SHA 512 algorithm. The integrity is checked by comparing the hash code which is generated before and after storing data in cloud.