Abstract: To provide mistake tolerance for reasoning space for storage, recent reports propose to stripe information across several reasoning vendors. However, if a reasoning suffers from a lasting failing and loses all its information, we need to fix the lost information with the help of the other surviving clouds to preserve information redundancy. We present a proxy-based space for storage system for fault-tolerant multiple-cloud space for storage called NC cloud which accomplishes cost-effective fix for a lasting single-cloud failure. The protected transmitting of details among working together customers should be efficient as well as versatile in order to support accessibility management designs with different granularity levels for different kinds of programs such as protected team interaction, secure powerful conference meetings and selective/hierarchical accessibility management published details. Accessibility management of short end users in cloud computing using Attribute-Set-Based Security (ASBE) with an requested structure of clients is not preferable for multi user access control in cloud computing. In this study, we recommend the first provably protected Broadcast Group Key Management (BGKM) plan where each user in a team stocks a key with the reliable key server and the following re-keying for be a part of or leaving of customers needs only one transmitted concept. Our plan meets all the specifications set down for an effective GKM plan and needs no change to key stocks current customers have. We evaluate the security of our BGKM plan and evaluate it with the current BGKM techniques which are mostly ad-hoc.