Recording medium reproducer, cryptocommunication system and...

Details Recording medium reproducer, cryptocommunication system and... Recording medium reproducer, cryptocommunication system and...

2004-03-26

2010-11-02

Agwumezie, Charles C (Department: 3685)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Usage protection of distributed data files

C705S051000, C705S057000, C705S058000, C380S201000, C380S202000, C380S203000, C380S204000

Reexamination Certificate

active

07827111

ABSTRACT:
The operating and other procedures of a disk or recording medium application system of the type for which a network is used are simplified. Disks or recording media have auxiliary data recording areas, where different IDs for individual disk, and/or cipher keys and/or decoding keys for ciphers are recorded in advance in a factory. By using the IDs to release the soft ciphers, and using the cipher keys when sending the ciphers, and using the decoding keys when receiving the ciphers, user authorization procedures are simplified.

REFERENCES:
patent: 4278837 (1981-07-01), Best
patent: 4465901 (1984-08-01), Best
patent: 4476499 (1984-10-01), Kanamaru et al.
patent: 4677604 (1987-06-01), Selby, III et al.
patent: 4757534 (1988-07-01), Matyas et al.
patent: 4766502 (1988-08-01), Mashimo
patent: 4866769 (1989-09-01), Karp
patent: 5214627 (1993-05-01), Nakashima et al.
patent: 5251011 (1993-10-01), Fujiwara et al.
patent: 5253241 (1993-10-01), Sekiguchi et al.
patent: 5418713 (1995-05-01), Allen
patent: 5509070 (1996-04-01), Schull
patent: 5513169 (1996-04-01), Fite et al.
patent: 5563946 (1996-10-01), Cooper et al.
patent: 5629980 (1997-05-01), Stefik et al.
patent: 5647049 (1997-07-01), Odaka et al.
patent: 5745568 (1998-04-01), O'Connor et al.
patent: 5761301 (1998-06-01), Oshima et al.
patent: 5807640 (1998-09-01), Ueno et al.
patent: 5844593 (1998-12-01), Proffitt et al.
patent: 5881038 (1999-03-01), Oshima et al.
patent: 5930215 (1999-07-01), Fite et al.
patent: 5959944 (1999-09-01), Dockes et al.
patent: 6052465 (2000-04-01), Gotoh et al.
patent: 6778969 (2004-08-01), Oshima et al.
patent: 0 302 710 (1989-02-01), None
patent: 0 549 488 (1993-06-01), None
patent: 0 549 488 (1993-06-01), None
patent: 0 565 281 (1993-10-01), None
patent: 0 565 281 A 2 (1993-10-01), None
patent: 0 741 382 (1996-06-01), None
patent: 0 741 382 (1996-11-01), None
patent: 0 844 612 (1998-05-01), None
patent: 56 025242 (1981-03-01), None
patent: 58 211343 (1983-12-01), None
patent: 60 193143 (1985-10-01), None
patent: 03250878 (1990-02-01), None
patent: 04103253 (1990-08-01), None
patent: 04 178967 (1992-06-01), None
patent: 4-178967 (1992-06-01), None
patent: 07-021697 (1995-01-01), None
patent: 07-085574 (1995-03-01), None

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