STANDARDS GROUPS, PROPOSALS, AND TECHNOLOGIES
Copy Protection Technical Working Group (CPTWG)
The CPTWG is an ad hoc group of experts from computer, consumer-electronics, and movie-studio industries that was formed in 1996 to assess the technical merits of competing copy-protection proposals for movies, video, and other content on digital media. Figure 18.1 is an illustration of the major industries and organizations that are working with CPTWG to stop the unauthorized copying of digital content.
CPTWG is the frontrunner in developing standards for the protection of digital content. One of its main accomplishments was the launching of an encryption approach called Content Scrambling System (CSS) in 1997. CSS is a technology that prevents unauthorized ...
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