A User-Based Document Management Mechanism in Cloud

The document plays an important role in the development of cloud computing. The user obtains and shares information by the electronic document. It is rich in content and various in representations. But the challenge to security is also brought. For the secure requirement for document in cloud, firstly, we will propose a novel user-based document secure management mechanism which introduces the re-encryption. The re-encrypted key will be generated according the access control conditions, so that the encryption of document creation will be combined with access control. Secondly, we will present the corresponding protocols and the implementation of the mechanism. Finally, the analysis of properties will be made.