Intel and DCTP*
The Technology Vision for the DTCP Standard
Intel and four other companies developed the Digital Transmission Content Protection (DTCP) standards specification to provide protected digital entertainment in the home. Imagine never being able to record cable television on a digital video recorder (DVR) for later viewing. Or not being able to sign up for video on demand. Without DTCP, Hollywood studios and other content owners would have been reluctant to ever allow video on demand or pay-per-view digital movies, much less permit a DVR to receive digital television content. Their fear: piracy.
"The Congress shall have the Power to ... promote the Progress Of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries." – United States Constitution, Article I, Section 8, ratified 1788 ... and just one example of many national laws around the world protecting artistic works.
DTCP defines a cryptographic protocol for protecting audio/video entertainment content from illegal copying, intercepting and tampering as it traverses digital interfaces such as IEEE 1394, Universal Serial Bus (USB*) and IP-based home networks. Transparent to consumers, DTCP allows people to enjoy high-quality digital pictures and sound without any noticeable performance or quality impact.
DTCP was jointly produced by five member companies — Hitachi, Intel, Matsushita (MEI, also known in the U.S. as Panasonic), Sony and Toshiba — as an outgrowth of the Copy Protection Technical Working Group (CPTWG). These companies are informally known as "the five companies" or the "5C."
As part of this group, Intel had three goals in creating a protected digital environment for the home network:
• Enable consumer choice, content portability and flexibility in the digital media experience.
• Protect the rights of content providers and content owners, recognizing their right to be compensated for their intellectual property.
• Make content protection simple and inexpensive to deploy for PC and consumer electronics (CE) manufacturers.
Read the full Intel and DCTP* Standards Specification.