HDCPcompliant

HDCP-compliant refers to devices that implement High-bandwidth Digital Content Protection (HDCP), a copy protection protocol used in digital video and audio connections such as HDMI, DisplayPort, and DVI. The goal is to prevent unauthorized copying of protected content as it travels from a source (like a Blu-ray player or streaming box) to a display or sink (like a TV or monitor).

HDCP works through an authentication and key exchange between the transmitting device and the receiving device. When a connection is established, both ends verify that the other party is HDCP-capable and authorized. If authentication succeeds, a secure, encrypted link is established to protect the content during transmission. If either end is non-compliant or authentication fails, protected content may be blocked or downgraded, resulting in no video or a non-protected signal.

Multiple HDCP versions exist. HDCP 1.x has been widely used with earlier HDMI and DVI devices, while HDCP 2.x provides stronger security and is required for certain 4K content and providers’ protections. Some products may be labeled with specific version compatibility, such as HDCP 2.2, which is relevant for 4K/UHD content.

Compliance is ensured through a licensing and certification program administered by an HDCP authority. Manufacturers license the technology, implement the required hardware and firmware, and meet test procedures before labeling devices as HDCP-compliant. In practice, end-to-end HDCP compliance also depends on all components in the signal chain, including cables and adaptors, being HDCP-certified.