Object oriented accountability approach in cloud for data sharing with patchy image encryption

摘要

Cloud computing presents a new approach for delivery model and consumption of different IT services based on internet. Highly scalable and virtualized resources are provided as a service on demand basis. Cloud computing provides flexibility for deploying applications at lower cost while increasing business agility. The main feature of using cloud services is that user's data are more often processed at remote machines which are unknown to user. As user do not own these remote machine used for speed up data processing or operate them in cloud, users can lose control of own confidential data.