Recording medium cartridge and a recording-and-reproducing...

Details Recording medium cartridge and a recording-and-reproducing... Recording medium cartridge and a recording-and-reproducing...

2007-04-17

2007-04-17

Dildine, R. Stephen (Department: 2133)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

By stored data protection

C340S005240, C380S022000

Reexamination Certificate

active

10717482

ABSTRACT:
A recording-medium cartridge including a recording-medium and a cartridge memory. In this recording-medium cartridge, the cartridge memory holds a unique cryptographic key in the condition that the rewrite of the cryptographic key is forbidden, and is detachably attached to the recording-medium cartridge. The recording-medium holds a CRC-code, which is generated based on the cryptographic key and data to be recorded on the recording-medium, and data in the condition that the CRC-code is correlated with the data.

REFERENCES:
patent: 2002/0035695 (2002-03-01), Riches et al.
patent: 2002/0174353 (2002-11-01), Lee
patent: 2003/0074572 (2003-04-01), Hayashi
patent: 2001-332064 (2001-11-01), None

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