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The announcement by the Digital Living Network Alliance (DLNA) of support for premium video during IBC2011 heralds the coming of age for home networks. The extension of DLNA’s Interoperability Guidelines to include premium video including HD content plugs an important gap in the standard, which previously was confined to streaming user generated content (UGC) between connected devices within the home.
The key enabling technology for DLNA’s premium video support is Digital Transmission Content Protection over IP (DTCP/IP), which was developed by five companies: chip maker Intel and CE giants Hitachi, Panasonic, Sony and Toshiba. This group, referred to collectively as 5C, formed an entity called the Digital Transmission Licensing Administrator to license the DTCP technology. Designed specifically for the home network, DTCP encrypts content between devices within the home after checking that they both support the standard.
