A novel secure distributed disk system

The paper proposes a novel secure distributed disk system. By dynamically exploiting file-system semantics of on-disk data blocks and sensing activities of the local file system, the disk system can be integrated with the current file systems seamlessly without changing the standard block interface between them and can efficiently manage accesses to the files from multiple hosts. And the disk system adopts a new data distribution scheme to ensure confidentiality, reliability and availability of data, and a credibility evaluation strategy to prevent some attacks from malicious clients and data servers.