ENCRYPTION STORAGE DEVICE, INFORMATION EQUIPMENT, AND SECURITY METHOD OF ENCRYPTION STORAGE DEVICE

摘要

PPROBLEM TO BE SOLVED: To provide a secure management method of an encryption key in a hardware encryption storage device, a method for storing a plurality of kinds of pieces of information in the hardware encryption storage device for arbitrarily invalidating information according to importance and types in transfer, discarding, rental or the like, and a method for invalidating data without determining what kind of information is stored in the discarding, or the like, when the plurality of kinds of pieces of information are stored in the hardware encryption storage device. PSOLUTION: The security method of the storage device executes steps of setting a plurality of partitions; generating a partition key unique to each partition; encrypting the partition key; and executing erasure of the partition key, when the invalidating command of specific partition data is issued from a host. PCOPYRIGHT: (C)2011,JPO&INPIT