Electrical computers and digital processing systems: support – Data processing protection using cryptography – By stored data protection
Reexamination Certificate
2007-01-09
2007-01-09
Barron, Gilberto (Department: 2132)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
By stored data protection
C380S201000, C380S277000, C380S281000, C713S189000, C713S171000
Reexamination Certificate
active
10315135
ABSTRACT:
A disk anti-copy system. An encrypted anti-copy mechanism with a device key table (Kd Table) prepared in a device and a fixed encryption processed media key block (MKB) pre-recorded in a disk is established. Only through the appropriate fixed encryption process between the key and the MKB can the device correctly read the disk. This controls the device and prevents disks from being copied. Moreover, the invention provides a method and device for preventing disks from being copied.
REFERENCES:
patent: 6883097 (2005-04-01), Lotspiech et al.
patent: 6993135 (2006-01-01), Ishibashi
patent: 2001/0021255 (2001-09-01), Ishibashi
patent: 2003/0198351 (2003-10-01), Foster et al.
Hsu Wen-Hsing
Lin I-Yen
Wu Guo-Zua
Barron Gilberto
Birch, Stewart, Kolasch and Birch LLP
Industrial Technology Research Institute
Lemma Samson
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