Key-Clump Searchabl Coding (Kcsc) For Cluster Information Sharing Via Cloud Storage

Abstract

We are currently studying how to use cloud to share data with others securely, efficiently, and flexibly. The design of encryption schemes represents a key challenge that depends efficiently managing these encryption keys. When a group of selected files or documents need to be  shared with a group of users, it is necessary to have a certain flexibility which requests different encryption keys that are used for different document or files. There also arises a need to share a large number of keys for encryption to users who must safely save them and create the same number of keywords trapdoors to the cloud so that they can upload or download shared data. This approach is made impractical by the indicated purpose of safe communication, storage, and difficulty. In this paper, I address this practical problem by proposing the new concept of Key-Clump Searchable Coding (KCSC). Document sharing involves the submitting of a public