Data protection in data storage system

Details Data protection in data storage system Data protection in data storage system

2004-08-02

2009-02-10

Smithers, Matthew B (Department: 2137)

Information security

Prevention of unauthorized use of data including prevention...

Access control

C713S193000

Reexamination Certificate

active

07490357

ABSTRACT:
For protecting data within a data storage system, such as a hard disk drive, security enable mode is entered. In that mode, initialization data is moved from a first area of a disk to a second area of the disk with a location of the second area being randomly generated. The initialization data is then erased from the first area. Also, a first cipher for firmware and a second cipher for a disk are both changed into a randomly generated value. Later, access to the initialization data from the second area is granted in the security enable mode if the first and second ciphers are the same.

REFERENCES:
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patent: 5377343 (1994-12-01), Yaezawa
patent: 5535355 (1996-07-01), Scales
patent: 5668945 (1997-09-01), Ohba et al.
patent: 5799145 (1998-08-01), Imai et al.
patent: 6012145 (2000-01-01), Mathers et al.

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