A Design for Scalable and Secure Key-Value Stores

Reliable and scalable storage systems are key to cloud-based applications. In cloud storage, users store their data on remote servers rather than their local computers. Secure storage is used to ensure the safety of data in clouds. As more and more users rely on third-party cloud vendors to store their data, concerns have arisen among users and cloud providers. Encryption-based approaches are commonly used in secure storage systems. Data are encrypted and stored on persistent storage like disks and flash memories. When data are needed by the users, they are decrypted and accessed by the users. This way of managing data hurts the scalability and throughput of cloud systems. In the meantime, cloud systems have to perform fault-tolerance strategies on data, which also brings performance deduction. The combination of these issues cause a high price for data security in cloud systems. Aware of such issues. we propose methods to reduce the overhead of secure storage while guaranteeing the safeness of data.

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