Storage apparatus that can properly recommence input and output of classified data
AssigneesSanyo Electric Co., Ltd., Hitachi Global Storage Technologies Japan, Ltd.
InventorsYoshihiro Hori, Tatsuya Hirai
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Abstract
A log region of a memory card includes a plurality of log entries and a plurality of administration information storage units. Each of the plurality of log entries includes a license ID region, a Ks2w region, a status region and a KPcmy region. The status region includes a ST1 region and a ST2 region to store the communication status. The license ID region stores a license ID. The Ks2w region stores a session key. The KPcmy region stores a class public encryption key of a memory card. The administration information storage unit stores the last record sequence number corresponding to the log entry storing history information of the latest communication.
Claims15
A storage apparatus to input/output classified data according to a predetermined procedure, and storing said classified data, comprising:
- an interface for data input/output with an external source,
- a data storage unit storing said classified data,
- a plurality of log storage units storing history information associated with input/output of said classified data, and
- a control unit controlling input/output of said classified data,
- each of the plurality of history information stored in said plurality of log storage units including identification information to identify classified data,
- wherein said control unit receives via said interface said identification information identifying classified data that has become a subject of input/output in response to commencement of an input/output process of said classified data, selects a log storage unit that stores history information including said received identification information out from said plurality of log storage units when there is such a log storage unit, and stores history information according to a progress of a procedure for said classified data input/output into said selected log storage unit.
Dependencies are inferred from the claim text.