Copyright and Technology London 2012: Multiplatform Video Security - Alec Main, Nagra

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GiantSteps Media Technology Strategies

Tecnología Empresariales

DRM Implementation Challenges
Alec Main, Vice President Multi-Device DRM

© 2011 KUDELSKI GROUP / All rights reserved.

Content Security Challenges

Protocol vs. “Robust” Implementation

Standard vs. Proprietary

One DRM vs. Multi-DRM

Free vs. Supported

2 © 2012 KUDELSKI GROUP / All rights reserved.

Case Study: Control Word Sharing with DVB
DVB

Scrambled Audio/Video
ECM (encrypted CW)

Scrambled Audio/Video
ECM (encrypted CW)
Legit Free-To-Air
smart cards Set-top box

ECM ECM

Descrambled
Audio/Video
CW CW MPEG Chipset
Control Word server

Why?
• DVB Standard
• Hardware/Software Interface

3 © 2012 KUDELSKI GROUP / All rights reserved.

Actions against illegal content and key sharing

Monitoring

Reporting Countermeasures

Legal Actions

4 © 2012 KUDELSKI GROUP / All rights reserved.

Monitoring: There is one huge CCCam CWS network

5 © 2012 KUDELSKI GROUP / All rights reserved.

Countermeasures
Proprietary technical solutions and countermeasures
prevent CWS in the future, but still hundreds of
thousands of shared legacy smart cards

XXX
XXX 7%
XXX 8% XXX
7% 34%

XXX
7%
XXX
11% XXX
NAGRA 13%
13%

6 © 2012 KUDELSKI GROUP / All rights reserved.

Legal Actions: Nagra shuts down services

7 © 2012 KUDELSKI GROUP / All rights reserved.

Content Security Challenges revisited

» OTT/DRM will also face Content Key Sharing

» Who pays the CDN costs?

» Who provides the counter measures?

» Who takes the on-going responsibility for security?

8 © 2012 KUDELSKI GROUP / All rights reserved.

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Copyright and Technology London 2012: Multiplatform Video Security - Alec Main, Nagra

3. Case Study: Control Word Sharing with DVB DVB Scrambled Audio/Video ECM (encrypted CW) Scrambled Audio/Video ECM (encrypted CW) Legit Free-To-Air smart cards Set-top box ECM ECM Descrambled Audio/Video CW CW MPEG Chipset Control Word server Why? • DVB Standard • Hardware/Software Interface 3 © 2012 KUDELSKI GROUP / All rights reserved.

6. Countermeasures Proprietary technical solutions and countermeasures prevent CWS in the future, but still hundreds of thousands of shared legacy smart cards XXX XXX 7% XXX 8% XXX 7% 34% XXX 7% XXX 11% XXX NAGRA 13% 13% 6 © 2012 KUDELSKI GROUP / All rights reserved.

8. Content Security Challenges revisited » OTT/DRM will also face Content Key Sharing » Who pays the CDN costs? » Who provides the counter measures? » Who takes the on-going responsibility for security? 8 © 2012 KUDELSKI GROUP / All rights reserved.

Copyright and Technology London 2012: Multiplatform Video Security - Alec Main, Nagra

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