Cryptography – Cryptanalysis
Patent
1989-04-18
1993-03-30
Gregory, Bernarr E.
Cryptography
Cryptanalysis
380 23, 380 25, 380 49, 380 50, 34082531, 34082534, H04L 900, H04L 932
Patent
active
051990660
ABSTRACT:
A method and system for protecting a software program recorded within a storage medium for use with or transmission to computer or processor based hardware comprises inputting a hardware code uniquely associated with the particular hardware and inputting a first software code uniquely associated with the particular embodiment of the software. A first predetermined operation is performed upon the hardware code and the first software code to produce an intermediate code. A unique activation code obtained from the software supplier is inputted and a second predetermined operation is performed upon the intermediate code and the activation code to produce a second intermediate code. The second intermediate code is compared to a second software code uniquely associated with the particular embodiment of the software and stored in a hidden location within the software. The use of the software is enabled only if the second intermediate code and the second software code are identical.
REFERENCES:
patent: 4433207 (1984-02-01), Best
patent: 4458315 (1984-07-01), Uchenick
patent: 4471163 (1984-09-01), Donald et al.
patent: 4558176 (1985-12-01), Arnold et al.
patent: 4562306 (1985-12-01), Chou et al.
patent: 4593353 (1986-06-01), Pickholtz
patent: 4634807 (1987-01-01), Chorley et al.
patent: 4652990 (1987-03-01), Pailen et al.
patent: 4658093 (1987-04-01), Hellman
patent: 4670857 (1987-06-01), Rackman
patent: 4683553 (1987-07-01), Mollier
patent: 4683968 (1987-08-01), Appelbaum et al.
patent: 4685055 (1987-08-01), Thomas
patent: 4740890 (1988-04-01), William
patent: 4866769 (1989-09-01), Karp
patent: 4901168 (1990-02-01), Yoshida et al.
Gregory Bernarr E.
Special Effects Software, Inc.
LandOfFree
Method and apparatus for protecting software does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for protecting software, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for protecting software will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1286951