Copy Protection System for Digital Home Networks

SmartRight™ SmartRight™

1 THOMSON multimedia 2001 © 11 july 2001

Copy Protection System for

Digital Home Networks

Copy Protection System for

Digital Home Networks

CPTWG – July 11, 2001 CPTWG – July 11, 2001

SmartRight™SmartRight™

211 july 2001THOMSON multimedia 2001 ©

Highlights

End to end protection Three modes of copy protection

Free copy Private copy View only

Personal Private Network

True renewability Business model neutral



SmartRight devices

Access DevicePresentation Device

RecorderConverter

moduleTerminalmodule

Digital Bus



Viewing broadcast content

Scrambled video+ Local ECM


Scrambled video+ CA

protected CW

Scrambled video+ CA

protected CW

CA protected CW

CA protected CW

Local ECMLocal ECM

LocalECMLocalECM

Control Word to get clear

video

Control Word to get clear

video

End to end protection



Recording content



Scrambled video+ CA

protected CW

Scrambled video+ CA

protected CW

CA protected CW

CA protected CW

Local ECMLocal ECM



Viewing recorded content



Local ECMLocal ECM CWCW

Storage Unitneutral



Creating private copies

Same secret key to decrypt

LECM



Personal Private Network

Set of devices whose terminal card share the same secret key

Automatic management and enrollment Virgin card waits for the secret key Progenitor card transmits the secret key Sterile has the secret key but cannot anymore hand it

Each Personal Private Network has its unique secret key

Personal Private Networks cannot interoperate



If less than max size

If less than max size

No limitation

No limitation

ImpossibleImpossible

No limitation

No limitation

Under limited conditions

Under limited conditions



Viewing view-only content

TemporaryTemporarysecretsecret

RequestRequest

Collaboration between

converter & terminal



True Renewability

Changing the heart of security: smart cards Renewed under control of SmartRight Association

Content triggers card renewing Converter / terminal independent renewal

How to get new cards Converter card distributed by CA/DRM providers Terminal card distributed by SmartRight checkpoints

– Certified dealers, retailers, shops, …

Backward compatibility Content recorded with previous cards remain accessible to newer cards.



Business neutrality

CA/DRM keeps control as long as it wants Stores content in CA protected format

– Possible due to storage unit neutrality

CA/DRM has access to a secure viewing environment

View only if no copy allowed Private copy if copy allowed

CA/DRM manages time SmartRight manages space



Scenario 1: View for 3 hours

BuyView only

View only



Scenario: Pay 2 times then keep it

BuyView only

Private copy 2nd Buy



SmartRight Association and Licensing AdministrationSmartRight Association

and Licensing Administration

This document is for background informational purposes only. Some points may, for example, be simplified. No guarantees, implied or otherwise, are intended.

This document is for background informational purposes only. Some points may, for example, be simplified. No guarantees, implied or otherwise, are intended.

CPTWG meeting July 11th, 2001

CPTWG meeting July 11th, 2001



What value for what players?

CE manufacturers’ market grows:

SmartRight compliant devices

New market for SmartRight IC

and smart cards

Consumers benefit from high-value

content, and new ways of enjoying it

Content distributors get new revenues

from digital content

distribution

Content owners get new

revenues from digital content

distribution and new usages

SmartRightFights against piracy

Enables new business models



SmartRight Association and Licensing Administration

SmartRight Association and Licensing Administration

SmartRight Association & LA

Founding/core Technology members

Founding/core Technology members

Advisory group (Content industry)

Advisory group (Content industry)

Specification, Patents, and Logo licensing

Smart cards PersonalizationSmart cards

Personalization

Content providers

Content providers

Content distributors

Content distributorsCE / IT

manufacturers

CE / IT manufacturers

Chip/module manufacturers

Chip/module manufacturers

CA / DRM providers

CA / DRM providers

Licensees

Smart cards manufacturersSmart cards

manufacturers



SmartRight Association & LA: Mission statement (1/2)

Develops / maintains SmartRight specifications

Controls the creation and distribution of certified keys to entities in charge of personalization of security modules (smart cards)

Insures devices’ compliance with SmartRight specifications

Collects SmartRight fees and pays for SmartRight smart cards



SmartRight Association & LA: Mission statement (2/2)

Defines renewability / revocation rules

Checks that the system is not hacked (alarm ring)

Controls a network of Checkpoints (retailers and other distribution points) for smart cards replacement

Licenses SmartRight essential Patents for SmartRight implementation



SmartRight smart cards distribution model

Initial smart cards:For STBs,

– SmartRight functionality is merged with CA functions (included in the CA card),

– Pay-TV service operators control the distribution of the cards as usual

For TVs, DVD players…, smart cards are shipped together with SmartRight devices:

– CE manufacturers buy smart cards from smart cards manufacturer– Cards are enclosed within SmartRight device shipping cartons

– One card per device



Contact names

Technical information: Eric DIEHL ([email protected])

Business information: Olivier LAFAYE ([email protected]) Solen JABOULET ([email protected]) Al BAKER ([email protected])



Thank you for your attention

This document is for background informational purposes only. Some points may, for example, be simplified. No guarantees, implied or otherwise, are intended

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Copy Protection System for Digital Home Networks