Information management method using a recording medium with...

Information security – Access control or authentication – Network

Reexamination Certificate

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Details

C726S026000, C713S193000, C705S051000, C705S054000, C705S055000, C705S056000, C705S057000, C705S059000

Reexamination Certificate

active

09800505

ABSTRACT:
An information management method restoring electronic data using backup information upon the loss of electronic data stored on a recording medium. Information stored in a predetermined area of the recording medium having medium-specific information is encrypted using medium-specific information or a key generated therefrom and is derived outside the predetermined area.

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