Patent · US Expired

Method for stega-cipher protection of computer code

US5745569A · kind A · utility

455Cited by
19References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 17, 1996
Grant dateApr 28, 1998
Priority date
Expiry dateJan 17, 2016

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F2211/007
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A method for protecting computer code copyrights by encoding the code into a data resource with a digital watermark. The digital watermark contains licensing information interwoven with essential code resources encoded into data resources. The result is that while an application program can be copied in an uninhibited manner, only the licensed user having the license code can access essential code resources to operate the program and any descendant copies bear the required license code.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.