Design and development of security algorithm for data storage in multicloud environment

摘要

The quality of information in the cloud organization is used for cloud storage auditing service. A security application of key updating is the important issue for the cyber defense. The cloud storage auditing of key explore problem is studied and implemented the key updating of Advanced Encrypted algorithm is proposed. To address the challenges of the existing system, the client update the security key for each time period. In this paper focus the key updates as transparent to client and proposed the cloud storage auditing with multiple could. The authorized party is used for the key updates in safely outsourced. The storage auditing and the secure key updates for the key exposure are the used to make the charge of the authorized party. The encrypted version of the client secret key is hold by the user because the client contained the small amount of data. The download the encrypted secret key from user is hold and uploading the new files. The user can provide the validity and verify the encrypted secret keys for clients. The features are designed to make the auditing procedure with key exposure updating for transparent to the client. The security model is formalized by this paradigm. The performance simulation and the proof of security are showed in the system and it provides the secure and efficient.