HDCP (High-bandwidth Digital Content Protection)

HDCP (High-bandwidth Digital Content Protection) is a specified method from Intel for protecting copyrighted digital entertainment content that uses the Digital Video Interface (DVI) by encrypting its transmission between the video source and the digital display (receiver). The video source might be a computer, set-top boxLCD), television, plasma panel, or projector.

Download this free guide

Digital Certificates: Risks, Changes & Buying Techniques

Buying digital certificates, or public key certificates, can be a complex process. Security expert Michael Cobb identifies features to consider prior to choosing and implementing a digital certificate.

Start Download

• Corporate E-mail Address:

  You forgot to provide an Email Address.

  This email address doesn’t appear to be valid.

  This email address is already registered. Please login.

  You have exceeded the maximum character limit.

  Please provide a Corporate E-mail Address.

By submitting my Email address I confirm that I have read and accepted the Terms of Use and Declaration of Consent.

By submitting your personal information, you agree that TechTarget and its partners may contact you regarding relevant content, products and special offers.

You also agree that your personal information may be transferred and processed in the United States, and that you have read and agree to the Terms of Use and the Privacy Policy.

All authorized devices are given a set of unique secret device keys from the Digital Content Protection LLC, which is the organization that licenses technologies for digital content protection. During the authentication process, the receiver must demonstrate its knowledge of the secret device keys before content is sent. After the receiver acknowledges the keys, both devices generate a shared secret value that is designed to prevent eavesdroppers from stealing the content. After authentication, the content is encrypted and sent to the receiver that decrypts it. If the Digital Content Protection LLC determines that a set of secret device keys has been compromised, it places the keys on a revocation list and provides the authorized devices with a new set of keys, which is called renewability. During authentication, the transmitter checks the revocation list before sending any content.