Systems and methods for locking and exporting the locking of...

Details Systems and methods for locking and exporting the locking of... Systems and methods for locking and exporting the locking of...

2003-06-19

2009-12-22

Kim, Hong (Department: 2185)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S163000, C726S027000, C726S029000

Reexamination Certificate

active

07636826

ABSTRACT:
A device and method is provided for commonly and securely allowing, as access control on a memory card, a plurality of information processing apparatuses to lock/unlock the memory. On the basis of a lock command input from an information processing apparatus serving as a host, such as a PC, an information storage device, such as a memory card, determines whether (a) a standard lock key set serving as a key set prohibiting output or (b) an export lock key set serving as a key set permitting output is detected and stores corresponding key set information. Only when the export lock key set is detected, output is permitted provided that predetermined verification succeeds.

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