HDCP
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Transcript of HDCP
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y As demand arises, content providers are using various content protectiontechnologies to prevent unauthorized uses.
y High-bandwidth Digital Content Protection (HDCP) protects the last stage inthe distribution process, encrypting content transmitted over digital interfaces
from set-top boxes, DVD players, personal computers and game consoles, todisplay devices such as high definition TVs.
y Required HDCP for HDMI
y In this session we discuss about:-
1.) How it protects content??????
2.) HDCP License Agreement.
3.) Authorized test centers.
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DDriverDriverOSOS
HFSHFS
GPUGPUContentContent
Hardware
Functionality Scan
(HFS):
Driver exercisescomplex inner
workings of the
chip and checks for
correct response
PVP-OPM Certificate in driver
Proves to PVP-OPM software:
Driver identity
Its unmodified Graphics vendor has signed
PVP-OPM license testifying to
having met OPM and content
industry rules
Driver is talking to
conformant hardware
Authentication byAuthentication by
Driver that GraphicsDriver that Graphics
Chip really is validChip really is valid
hardwarehardware
Authentication ofAuthentication of
Graphics Driver byGraphics Driver by
Operating SystemOperating System
Authentication ofAuthentication of
Operating System byOperating System by
the Contentthe Content
HDCP transmitters that
dont distinguish between
high-value HDCP content
and unprotected contentwill encrypt everything.
These source devices
wont display anything on
a non-HDCP receiver, even
if the material being played
is an unprotected
homemade DVD.
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Dont encrypt non-HDCP content from non-HDCP sources
Make sure HDCP recovers after your repeater switches from one source
to another (with a different timing) and back.
Make certain that your repeater detects and forwards all hot-plugs to
up-stream devices, even if the hot-plug signals only last for 100
milliseconds.
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y Quantum Data has joined forces with other industry leaders to solve the give
guidelines problem..
y Last year, DCP released a supplement and compliance test standard. HDCPcompliance currently relies on self-policing.
y DCP has established a test lab where HDCP licensees can come and testinteroperability with a suite of real products.
y Quantum Data is following through with a two-pronged solution that includesgrafting HDCP debug and compliance test features onto existing video testinstruments - to help design engineers stem the flow of new non-compliant designsentering the market - and creating new tools to help installers isolate problems with
legacy products already in the field.
y Researchers have used theQuantum Data and Panasonic tools to survey a large cross-section of existing products. Their findings helped establish the list of design bestpractices discussed in this article. Researchers also have found and correctedweaknesses in the test equipment and the HDCP compliance test standard
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y Manufacturers who choose to use HDCP need to
license it from DCP. By doing so, they agree to
comply with the HDCP License Agreement and
accordingly, make their products compliant with the
HDCP specification and compliance rules and
relevant interfaces such as HDMI,
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FUTURE
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CONCLUSION
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White Paper White Paper
July 2008 By: Mark Stockfisch