Computer software protection, by optical effects

Details Computer software protection, by optical effects Computer software protection, by optical effects

1990-04-20

1991-06-18

Arnold, Bruce Y.

Cryptography

Key management

Having particular key generator

380 54, 380 58, G02B 532, G09C 104

Patent

active

050244957

ABSTRACT:
This apparatus and method protects software from unauthorized distribution and use, by utilizing the fact that holograms and other optical effects-producing media are extremely difficult to copy. A hologram, series of holograms, or other optical media, are used to create an "optical software key". When queried by a computer program, the program user, with the help of the optical key, reads a code (or codes). When the appropriate code is input to the program, access (or continued access) is then allowed.

REFERENCES:
patent: 3166625 (1965-01-01), Brumley
patent: 3178993 (1965-04-01), Ferris et al.
patent: 4458315 (1984-07-01), Uchenick
patent: 4562306 (1985-12-01), Chou et al.
patent: 4584641 (1986-04-01), Guglielmino
patent: 4593353 (1986-06-01), Pickholtz
patent: 4785361 (1988-11-01), Brotby
patent: 4858036 (1989-08-01), Ginkel
Rao, S. Ananda and Pappu, S. V., "Holographic Methods for the Fabrication of Various Types of Mirrors", Rev. Sci. Instrum. 51(6), Jun. 1980, pp. 809-813.

Affiliated with

Also associated with

Rating

Computer software protection, by optical effects does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Computer software protection, by optical effects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Computer software protection, by optical effects will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-142196