CP TECHNOLOGIES 4 CH Digital Video System Manuel d'utilisateur Page 1

HDCPdeciphered Executive Summary Audiovisual content, including movies and TV, is increasingly disseminated in digital form on the Web,

that ART transmitters typically plug into HDMI connectors or other approved outputs. The transmitting device can therefore transmit HDCP-encrypted con

Futures As the consumer electronics and PC industries continue to evolve, developing new and better products and interfaces, and the need for a robust

1Introduction Audiovisual content is increasingly being distributed to consumers in digital form—over the Internet, cable and satellite networks, and

2For example, cable and satellite providers use conditional access technology to prevent unauthorized access to content as it is transmitted from the

consumer electronics devices. HDMI delivers high-denition video and multi-channel audio over a single cable using standard connectors. HDCP may also

For completeness, it is worth noting that home theater systems may also contain HDMI switches that select from multiple source inputs and forward the

Some possible arrangements: 1. A TV (sink) is connected to one or more sources. An example is an HDTV with four HDMI inputs. A consumer could connect

All HDCP transmitters or receivers also include a Key Selection Vector (KSV) provided by DCP. This 20-bit binary value uniquely identies the HDCP tra

receiver sends information to the transmitter, and the transmitter uses this information to verify that the devices are synchronized and that the rece

The makers of HDCP chips burn the KSVs and Private Device Keys into each piece of silicon. These keys are highly condential, and protecting them from