STORAGE SYSTEM

STORAGE SYSTEM

PROBLEM TO BE SOLVED: To improve security.SOLUTION: A secure storage medium 12 includes a memory 13 and a controller 14. The memory 13 includes a protected first memory region 13f which stores concealed information transmitted from a host device 11, and a second storage region 13g for storing encryp...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TSUMAGARI YASUSHI, SAKAMOTO HIROYUKI, MIMURA HIDEKI, NAGAI YUJI, MATSUKAWA SHINICHI
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To improve security.SOLUTION: A secure storage medium 12 includes a memory 13 and a controller 14. The memory 13 includes a protected first memory region 13f which stores concealed information transmitted from a host device 11, and a second storage region 13g for storing encrypted contents. The controller 14 performs authentication for accessing the first storage region 13f. A non-secure storage medium 30 includes a third memory region for storing the encrypted contents. The host device 11 and the secure storage medium 12 generate a bus key, which is common only to the host device and the secure storage medium by authentication and is used for encryption in transmitting/receiving information in the first storage region between the host device and the secure storage medium.