DTCP, or Digital Transmission Content Protection, which was issued by DTLA (Digital Transmission Licensing Administrator) to protect the multimedia distribution in the Digital Home. It is a form of Digital rights management. There are mappings to FireWire(IEEE-1394), USB and MOST Bus.
External links
DTCP in a presentation by Intel (http://www.intel.com/idf/us/fall2003/presentations/F03USDGHS86_OS.pdf)
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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).
DTCP was one of the approved technologies, and the only publicly offered output protection technology that permits copying over several interfaces.
Consequently, DTCP is favored to appear in an ever-growing number of devices.
DTCP makes no provisions for the potential performance impact on the network element when performing this function; obviously a negligible impact is most desirable.
DTCP is by its very nature transient; controlled devices should not attempt to maintain DTCP state in a non-volatile storage system.
DTCP messages are formatted in human-readable CRLF-delimited UTF-8 text format, using a mechanism similar to HTTP [6] or SIP [7].
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