You power on your Blu-ray player or DVR, it makes nice with your HDTV, and you live a happy life never knowing what HDCP even is.
The outputting device says “Hey display! Are you HDCP compliant? Here is my license, show me your license!” The display (or other HDCP compliant device) returns with “Why yes, I am legit! Here is my license!” When that process works, it happens within a thousandth of a second and you, the consumer, never even notice. Each HDCP-compliant device, like your Blu-ray player or Xbox, has a license and the ability to talk to the receiving device on the other end of the HDMI cable.
There is a licensing body that issues licenses for HDCP devices. RELATED: Why Does My New HDTV's Picture Look Sped Up and "Smooth"? Where HDCP Breaks DownĪlthough HDCP’s underlying encryption and protocols are sophisticated and outside the scope of this article, the basic premise of how it works is quite simple. It’s also built into laptops and computer hardware, DVRs, and other modern HDMI devices. HDCP is everywhere and is built into devices like Blu-ray players, cable boxes, and satellite TV receivers, as well as into streaming video devices like the Roku, Chromecast, and Amazon Fire TV. It provides for an encrypted connection between a content outputting device (like a Blu-ray player, cable box, or streaming device) on one end and a receiving device (like an HDTV or audio-video receiver) on the other end. HDCP was developed by Intel and is used not just with HDMI, but with a variety of digital video standards like DisplayPort and Digital Visual Interface (DVI). This is the kind of trouble we run into with games that require authorization servers to run if the company goes under so does the authorization server and suddenly the game won’t run.
When you buy a movie on iTunes and can only play it on devices with your account, you’re experiencing DRM.Ĭontent creators and distributors should be afforded some protection, since it’s expensive to create and distribute content. The trouble is that DRM typically makes life more difficult for honest paying consumers-and in many cases outright breaks the experience-while not really doing much to deter piracy. Different companies and industries use different protocols, but the basic premise is the same: DRM locks purchases you make to you and your devices. DRM protocols are designed to protect content creators and distributors against piracy. HDCP (High-bandwidth Digital Content Protection) is a form of Digital Rights Management (DRM). Read on as we explain how HDCP works, why it breaks your TV, and how you can fix it. HDCP is an anti-piracy protocol built right into the HDMI cable standard, but it doesn’t actually work very well, and breaks the viewing experience.
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