License-based cryptographic technique particularly suited...

Details License-based cryptographic technique particularly suited... License-based cryptographic technique particularly suited...

2007-05-22

2007-05-22

Barrón, Jr., Gilberto (Department: 2134)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Security kernel or utility

C713S156000, C713S176000

Reexamination Certificate

active

10969728

ABSTRACT:
A technique for imparting substantial break-once-run-everywhere (BORE) resistance to passive and active software objects, and for controlling access and use of resulting protected objects by a client computer (400). Specifically, a relatively large number, n, of identical watermarks (1720) are embedded throughout a software object (1700), through use of n different secret watermark keys to form a protected object, with each key defining a pointer to a location in the protected object at which a corresponding watermark appears.

REFERENCES:
patent: 5379345 (1995-01-01), Greenberg
patent: 5745569 (1998-04-01), Moskowitz et al.
patent: 5903882 (1999-05-01), Asay et al.
patent: 6510513 (2003-01-01), Danieli

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