A Secure Cloud Data Sharing Scheme for Dynamic Groups with Revocation Mechanism

Cloud is an extensive data sharing system in which it provides an IT paradigm for to access shared pools of resources for any type of organizations. It also provides higher level services with minimal management effort. Using the concept of cloud, only lower maintenance is needed for the group members. Use of cloud computing helps us to ensure the storage capacity and it can be shared between the group members. Since we are outsourcing the data there is the necessity of providing security to the data. Since the members are changing dynamically here it is needed to ensure the guarantee of the data security. Especially the collusion attack should be avoided. The prescribed paper describes about a privacy preserving data sharing technology that uses key distribution method along with the group manager.