1. DRM Implementation Challenges
Alec Main, Vice President Multi-Device DRM
© 2011 KUDELSKI GROUP / All rights reserved.

2. 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.

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.

4. Actions against illegal content and key sharing
Monitoring
Reporting Countermeasures
Legal Actions
4 © 2012 KUDELSKI GROUP / All rights reserved.

5. Monitoring: There is one huge CCCam CWS network
5 © 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.

7. Legal Actions: Nagra shuts down services
7 © 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.