SECURE STORAGE AVAILABILITY USING CRYPTOGRAPHIC SPLITTING

摘要

A secure storage appliance is disclosed, along with methods of storing and reading data in a secure storage network with a virtual disk mapped to the plurality of physical storage devices. The secure storage appliance is configured to present to a client a virtual disk, the virtual disk mapped to the plurality of physical storage devices. The secure storage appliance is capable of executing program instructions configured to generate a plurality of secondary data blocks by performing splitting and encrypting operations on a primary data block received from the client for storage on the virtual disk. For security, the secondary data blocks are stored at geographically-distributed locations. The secure storage appliance is also capable of executing program instructions configured to reconstitute the primary data block from at least a portion of the plurality of secondary data blocks stored in shares on corresponding physical storage devices in response to a request from the client.