AfterDawn: Glossary


DTCP stands for Digital Transmission Copy Protection (DTCP). DTCP is a copy protection technology that covers cable programming, including high-definition and VOD cable content, on consumer electronics devices and personal computers on digital home networks. It received approval from Cablelabs in August 2007. The announcement was made by Cablelabs and the Digital Transmission Licensing Administrator (DTLA), LLC. It was approved for protection of cable content using Internet Protocol for unidirectional and bidirectional digital cable products, in cooperation with Paramount Pictures Corporation, Sony Pictures Entertainment, Inc., The Walt Disney Company and Warner Bros. Technical Operations.

The approval permits CableLabs licensees under DFAST, CHILA, and DCAS to protect pay-per-view and video-on-demand transmissions against unauthorized copying and unauthorized internet retransmission, while assuring consumers' ability to record broadcast and subscription programming, in digital formats, for personal use.

DTCP overall is made to restrict digital home technologies by encrypting interconnects between devices. Hitachi's M6 cipher is down on paper as the baseline encryption system, which was already in widespread use in the Japanese cable industry. The specification is proprietary and is only available to members who reach DTLA agreements.
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