The DisplayPort Task Group has proposed some changes to the specification for DisplayPort, an upcoming unified display interface for monitors and TVs. The 1.0 DisplayPort spec includes so-called DisplayPort Copy Protection, which encrypts content with a 128-bit ASE cipher. However, X-bit labs says the DisplayPort Task Group wants to include support for High-bandwidth Digital Content Protection (HDCP,) as well. HDCP is the current standard supported by HDMI and DVI interfaces, as well as copy-protected Blu-ray and HD DVD media.
A new version of HDCP with DisplayPort support is expected to be finalized in early 2007, and it will allow HDCP-enabled products with DVI or HDMI plus DisplayPort outputs to share encryption keys.
