DATA SECURITY TECHNIQUE IN CLOUD COMPUTING

Cloud computing is the delivery of computing services over the Internet. The platform of cloud computing gives peoples the opportunity of sharing and storing resources and information among the people across the globe. Most of organizations, individual and end users are making use of such online storage services to store their important information for the backup purpose. This new paradigm brings about many new security challenges. At present ensuring security in cloud computing platform has become one of the most significant concerns for the researchers. Many any new frameworks and technologies are used to preserve data that are stored in clouds. In this paper, a new data security scheme is developed for cloud computing platform. This scheme ensures data security in both the ways i.e., data storage security and data retrieval security. For data retrieval security, multi-level authorization technique is applied. Authenticity of user is done in 3 levels which includes registered key, one-time password (OTP) and image-based security mechanism. For data storage security, data partitioning is done along with the application of serialization concept. Both data retrieval security and data storage security provide a strong foundation that not only restricts the unauthorized user to access the data stored in cloud but also ensures the confidentiality and integrity of data.