High bandwidth Digital Content Protection (HDCP) is a type of digital copy protection developed by Intel Corporation to prevent digital audio and video content from being copied while moving between connections. Types of connections include DisplayPort (DP), the visual interface-digital (DVI) and Multimedia Interface, high-resolution (HDMI), as well as the protocol in the less-popular or outdated like interface, video, gigabit (GVIF) and the interface displays integrated (UDI).< < > this system is intended to prevent the broadcast of encrypted content on unauthorized devices or devices that have been modified to copy content. Before sending the data، a sending device checks that the recipient is allowed to receive the en. In this case the sender encrypts the data to prevent eavesdropping that flows to the receiver..

In order to build a device that content has HDCP it plays the., the manufacturer must license the patent from the Digital Content Protection LLC downline Intel system. cost of annual pay and conditions different to offer. For example، the device cannot be designed for copying. It should "fail attempts to break content protection requirements" it should not send high-quality protected video to non -hdcp receivers. , And DVD-Audio can only be with the quality of CD-audio is Output digital audio non-HDCP out (audio output analog limit the quality of not).

in September 2010, a major key HDCP is possible to produce the keys to the machine, valid, and provides said. was released to the public and feature the annulment of the key HDCP to use. Intel has confirmed that crack is real، and believes the original key has been reversed rather than revealed. In practical terms the impact of cracking has been described as" the digital equivalent of showing the camcorder towards the TV " and is of limited importance to consumers because the encryption of high-resolution discs has been directly attacked، with the loss of interactive features such as menus. Intel threatened to sue anyone who produces an unlicensed device.