Spyder X20 HDCP Functionality (Option)
Spyder X20 User Manual
164
020-000916-01 Rev. 1 (04-2016)
Spyder X20 HDCP Functionality
(Option)
High-bandwidth Digital Content Protection (HDCP) is a form of digital copy protection developed by Intel to
prevent copying of digital audio and video content as it travels across a digital interface. The system is meant to
stop HDCP-encrypted content from being played on devices that do not support HDCP or which have been
modified to copy HDCP content.
HDCP (High-bandwidth Digital Content Protection) is a system designed for protecting Audio-visual content over
certain high bandwidth interfaces from being copied. HDCP specification was developed by Intel and
administered by Digital Content Protection, LLC which is a subsidiary of Intel. HDCP Revision 1.x was in existence
since 1999 and is adopted by almost all the consumer-electronics manufacturers, content providers and
prominent industry associations. HDCP is supported in various high-bandwidth interfaces (called HDCP-
protected interfaces) including, but not limited to DVI, HDMI and Display port and while HDCP is an optional
feature in DVI, it is mandatory in HDMI. As it is obvious, HDCP 1.x (or simply referred to as HDCP) is an interface
dependent encryption system and was limited to usage in the particular interface for which they are intended,
like DVI or HDMI. But with the advance of technology, several other ways of content distribution came into
existence including wireless distribution, distribution over network and internet. HDCP 2.0 was designed and
brought out to circumvent this issue and is interface-independent and uses more advanced encryption
mechanism leveraging the advancement in encryption technologies since 1999, like AES.
X20 supports HDCP 1.4 which is the most updated revision in the 1.x specifications, and it can inter-operate with
any HDCP 1.0, HDCP 1.1, HDCP 1.2, HDCP 1.3 and HDCP 1.4 compliant devices.
HDCP has three important elements in its operation, namely
1.
Encryption and Decryption of Video (and Audio) data
2.
Authentication and secret-key derivation
3.
Revocation of compromised keys, determined by the DCP, LLC
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