Cryptography – Key management – Having particular key generator
Patent
1993-03-16
1995-01-03
Kulik, Paul V.
Cryptography
Key management
Having particular key generator
380 4, 380 25, 360 60, 3408253, 364DIG1, 3642864, 3642865, 3642866, G06F 1214, H04L 900
Patent
active
053794338
ABSTRACT:
A system for protecting an unauthorized use of a recorded content. The system uses a recording medium including a first recording area in which data including a program are recorded and further including a second recording area which is formed at a specific position thereof and in which data including a specific identification code are recorded so as not to be rewritable by a user. The recording medium is coupled through a recording/reproduction device to a control unit for executing the program recorded in the first recording area of the recording medium. The control unit reads out the identification code recorded in the second recording area and stops the execution of the program when the read-out identification code is not coincident with a predetermined ID code.
REFERENCES:
patent: 4446519 (1984-05-01), Thomas
patent: 4458315 (1984-07-01), Uchenick
patent: 4462078 (1984-07-01), Ross
patent: 4562306 (1985-12-01), Chou et al.
patent: 4577289 (1986-03-01), Comerford et al.
patent: 4584641 (1986-04-01), Guglielmino
patent: 4593353 (1986-06-01), Pickholtz
patent: 4644493 (1987-02-01), Chandra et al.
patent: 4688169 (1987-08-01), Joshi
patent: 4734796 (1988-03-01), Grynberg et al.
patent: 4740890 (1988-04-01), William
patent: 4748561 (1988-05-01), Brown
patent: 4785361 (1988-11-01), Brotby
patent: 4796220 (1989-01-01), Wolfe
patent: 4858036 (1989-08-01), Ginkel
patent: 4864494 (1989-09-01), Kobus, Jr.
patent: 4866769 (1989-09-01), Karp
patent: 4903296 (1990-02-01), Chandra et al.
patent: 4910625 (1990-03-01), Albrecht et al.
patent: 4959861 (1990-09-01), Howlette
patent: 4975898 (1990-12-01), Yoshida
patent: 4980782 (1990-12-01), Ginkel
patent: 5027396 (1991-06-01), Platteter et al.
patent: 5033084 (1991-07-01), Beecher
patent: 5034980 (1991-07-01), Kubota
patent: 5056009 (1991-10-01), Mizuta
patent: 5131091 (1992-07-01), Mizuta
Installation Instructions, Xilinx P-SILOS Simulator, p. 3.
Partial ROM Disk Feasibility Studies for CCS and DBF 90mm Disk Format, Hitachi, Ltd. (Aug 3, 1989).
"130 mm Rewritable Optical Disk Cartridges," Information Technology, SC23 Optical Digital Data Disks, 2nd DP 10089, (Sep. 1989).
Kulik Paul V.
Victor Company of Japan Ltd.
LandOfFree
Protection against unauthorized use of software recorded on reco does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Protection against unauthorized use of software recorded on reco, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Protection against unauthorized use of software recorded on reco will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2218337