Online Automatic Space Management and File Storage on Cloud using Hybrid Cryptography

In this paper, a cloud application is implemented for the corporate sector to store, share and upload documents. This application makes it easier for the employees to operate documents/files present on the cloud server/database. This paper will have solutions to upload and download documents, store documents on the server, also to view documents shared by other users and to view file details which are on the server. When the user uploads a document, it will be automatically encrypted using the hybrid algorithm. The user (employee) will be able to access shared documents as well as download them in the decrypted form using a secret key received from the registered email ID. In this cloud application, an automatic space manager will be used to track various actions related to a document, such as how many times the document is being downloaded and shared. This will help find unused files and move them on the backup server. In case the unused file’s demand suddenly increases, then the file will be moved from the backup server to the main cloud server using automatic space manager. Key-Words: Cloud Computing, Hybrid Cryptography, Encryption Algorithms, Space Management, Cloud Storage.