MPAA Views on Secure Home Networking

1
MPAA Views on Secure Home Networking

• Jim C. Williams
• Vice President, TV Video Systems Standards
• MPAA and MPA

2
MPAA Views on Secure Home Networking

• Our objective is true content interoperability
• Security considerations for content
  interoperability
• Forums for collaboration

3
Our Objective is True Content Interoperability

• Interoperability of what?
• Not just communication links and coding formats
• But also content protection mechanisms to support
  all content types demanded by consumers, e.g.,
  commercial content like movies television
• Benefits consumers
• Enables STBs, PCs and other home appliances as
  gateways to commercial content consumption
• Enables Multi-room, in-home distribution
• Enables shared storage retrieval within the home

4
Security Considerations for Content
Interoperability

• Commercial content is delivered with associated
  usage rights
• A home network must securely manage those content
  usage rights
• Copy Management
• Redistribution Control

5
Traditional Content Usage Rights Management
Copying is managed through copy control signaling
and compliant recorders. Redistribution is
managed implicitly in the architecture of each
system.
Terr. Rx

• Terrestrial delivered to an antenna tuner
  within broadcast contour
• Satellite delivered to an STB at an address
  within broadcast contour
• Cable delivered via wire to an address within a
  cable distribution system

Satellite Rx
Cable Rx
6
Broadband Enabled World

• Broadband enables both home networking and remote
  access. Both must be considered with respect to
  commercial content and associated usage rights.

Georges Home
Johns Primary Home
B
Satellite Rx
Internet
Terr. Rx
Johns Vacation Home
Johns Laptop, cellphone, or portable device
Cable Rx
Johns Car
B
PC w/ DRM Media Player
7
FTA Content Usage Rights

• Transmitted to a specific region to which the
  broadcaster has rights.
• Cannot be redistributed without authorization.

Georges Home
Johns Primary Home
B
Satellite Rx
Internet
Terr. Rx
Only with authorization.
Johns Vacation Home
Johns Laptop, cellphone, or portable device
Cable Rx
Johns Car
B
PC w/ DRM Media Player
8
PayTV Content Usage Rights

• Typically delivered by CA or DRM system to a
  particular user at a particular location.
• Often delivered to a specific of receivers in
  home. They may charge more for 2nd sets.

Georges Home
Johns Primary Home
B
Satellite Rx
Internet
Terr. Rx
Only with authorization.
Johns Vacation Home
Johns Laptop, cellphone, or portable device
Cable Rx
Johns Car
B
PC w/ DRM Media Player
9
Package Media Content Usage Rights

• Typically delivered in final form for viewing on
  licensed playback devices (e.g., DVD players) not
  for copying or redistribution.

Georges Home
Johns Primary Home
B
Satellite Rx
Internet
Terr. Rx
No copying. No redistribution.
Johns Vacation Home
Johns Laptop, cellphone, or portable device
Cable Rx
Johns Car
DVD Player
B
PC w/ DRM Media Player
10
Home Network Threat Analysis for Commercial
Content

• USE (convenience to user)
• Watching Free-To-Air (FTA) broadcast on any TV in
  the home.
• Watching PayTV on any TV in home.
• Recording a FTA or PayTV subscription channel
  that allows copying.

• MISUSE (weakness to pirate)
• Redistributing Free-To-Air broadcast beyond
  licensed region without authorization.
• Circumventing black outs.
• Redistributing a PayTV service to a neighbor,
  friend, stranger or even your own vacation home
  without authorization.
• Making a permanent copy of a VOD movie that is
  marked Copy Never.

11
Content Security onDigital Home Networks

• Content must be secure (effective encryption and
  key management system)
• Content usage rights information must be securely
  bound to the content
• Devices accessing content on the network must be
  authenticated to be compliant with the security
  system
• Content must be managed in accordance with
  Content Usage Rights

12
Content Usage Rights Overview

• Copy management
• Copy Control Not Asserted
• Copy Once
• Copy No More
• Copy Never
• Redistribution control
• Not beyond a single local environment (e.g.,
  home) unless authorized
• Not beyond a personal authorized domain (e.g.,
  the devices belonging to a single individual or
  household) unless authorized

13
Forums for Collaboration

• Digital Video Broadcasting (DVB) consortium
• ITU-T SG9 (Cable standards group)
• Other industry activities

14
Digital Video Broadcasting(DVB)

• Defining DVB Content Protection and Copy
  Management (CPCM) system
• Manages copying, moving and viewing
• Within the local environment (e.g., the home), or
  alternatively if authorized,
• Remotely, but within an Authorized Domain (e.g.,
  a families devices in the home, vacation home,
  car or on their person), or alternatively if
  authorized,
• Beyond an Authorized Domain
• This DVB specification is in development

15
ITU-T SG9 (Cable standards group)

• Next generation set-top box and home network
• Will require a content protection and copy
  management system that prevents the content from
  unauthorized copying and unauthorized
  redistribution.
• Must prevent unauthorized redistribution of
  content beyond the local environment (e.g. a home
  or a car).
• Must prevent unauthorized redistribution of
  content to devices other than those which are
  owned or leased by a single authorized
  subscriber.

16
Other Industry Activities

• U.S. FCC rulemaking on Broadcast Flag
• Several companies have proposed content
  protection technologies that protect unencrypted
  digital TV broadcasts from unauthorized
  redistribution beyond the local environment that
  received the broadcast.
• The SmartRight consortium has proposed a solution
  that includes both local proximity and personal
  authorized domain redistribution control.
• IBM has demonstrated their xCP content protection
  system providing authorized domain redistribution
  control.
• Other systems are in development and may be
  announced soon.

17
In closing

• the MPAA and its Member Companies look forward
  to continued collaboration to define sensible and
  effective security solutions for commercial
  content on digital home networks.