METHODS AND SYSTEMS FOR STRIPE BLIND ENCRYPTION

摘要

Methods and systems are disclosed that relate to encrypting data of a data item for storing in a data storage system comprising a plurality of disks having stripes. A blinding factor is constructed based on a stripe blind that is assigned to a stripe with which the data item is associated and a unique identifier associated with the data item. A first logic operation is performed between the blinding factor and an encryption key to create a blinded encryption key for the data item. The data item is decrypted by identifying the stripe blind with the unique identifier and recreating the data item's blinding factor based on the stripe blind and the unique identifier. A second logic operation, which is selected based on the first logic operation, is performed between the blinding factor and the blinded encryption key to recreate the encryption key.