ABE Technique and Erasure Code for Secure Cloud Storage with Revocation

Abstract

Now a day, Information Security has primarily more attractive concern and today when most of the sensitive data is stored on Cloud with client organization having lesser control over the outsourced data, the fundamental way to fix this problem is to do encryption of data. So, a secure user can impose with information get to control system must be given before the clients store any information on the cloud storage. Attribute Based Encryption (ABE) is an asymmetric key based crypto system that has received much focus that provides fine-grained data access control to data files deployed on the cloud. Here, we present a more proficient and most important type of ABE technique that not only considers the Outsourced ABE construction but also address the issue of revocation in case of user leaving the group or organization; the keys are updated once a specific user is removed from the group, and these updated new keys are shared between the existing users also our system supports the keyword search on encrypted data in the remotely storage of cloud. In multi keyword search; users and data owners can establish the index of keywords and pursuit trapdoor, without depending on the online trusted authority. Here erasure codes are used to ensure the 100 percent of data availability. Experimental results demonstrate that the performance of the proposed system is superior than existing system in terms of security, data availability, time consumption and memory utilization.