Secure File Sharing between Multiple Clouds using Encrypted Mechanism

Abstract

A large amount of the data is stored in the file one can retrieve or access the stored data easily. Now-a-days most of the people are concentrate on the file sharing for sharing the important data. But many techniques are concentrating on owner to single user filesharing. In this paper, we propose File share for the secure data sharing between the multiple organizations in the different clouds for the multiple users. The proposed protocol is based on the revocable key- policy Attribute- Based Encryption schemes and it allows a lot of users to share the data in the cloud based on the policy which is defined by the data owner . Furthermore, access to a malicious or compromised user/organization can be easily revoked without the need to generate fresh encryption keys. The file is shared to the multiple users of the particular category by the owner. By this a lot of time is saved as the data corresponding to the particular category are shared to all the users registered with that particular category.