Encryption of defects map

Details Encryption of defects map Encryption of defects map

1997-11-14

2000-07-18

Palys, Joseph E.

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Protection at a particular protocol layer

714 8, 308 4, G06F 1214

Patent

active

060921951

ABSTRACT:
A technique for authenticating a headerless-ID magnetic disk includes the steps of inserting the headerless-ID magnetic disk having a plurality of defective locations and an encrypted defect map into a removable drive unit, retrieving the encrypted defect map from the magnetic disk, storing the encrypted defect map into a memory in the removable drive unit, decrypting the encrypted defect map to form a defect map identifying the plurality of defective locations, and using the defect map in the memory to provide access to locations on the headerless-ID magnetic disk other than the plurality of defective locations.

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