The Digital Media Project

 

Source

Philip Merrill / GA02 IED-s breakout

Title

Distribution of audio-video content for consumption on portable devices (DMBM #8 )

No.

040518merrill01

 

Name: Philip Merrill
Affiliation/additional information: Active contributor, Pasadena, California, US
Date submitted: 2004/05/18

This is a very minor revision of the DMBM #8 output of the IED-s breakout group, April 29, 2004 at GA02 (http://www.dmpf.org/project/ga02/DMBM_list.htm). It provides a stand-alone template (which was inadvertently missing) for future revision, gives DEU's generated at the breakout the numbers later assigned to them, and amends DEU 23 with its revised title.

# Criteria Description
1. Name of DMBM Distribution of audio-video content for consumption on portable devices
2. Summary description of DMBM
  • Playback device that supports DMP DRM and receives content via physical media, wired and/or wireless network. Possible option is to record and protect audio samples, personal stills and video using DMP DRM.
  • Content is played from local storage and/or streamed.
  • Content may be purchased through the device.
  • Device features: large memory capacity, small size, light physical weight, light weight DRM, long battery life, low device price, content library browsing.
3. Use records of DMBM A variety of digital portable players such as portable DVD and MP3 players.
4. DEUs used
  • 02 Browsing and selecting from a large number of content
  • 05 Accessing governed content with a single device
  • 06 Making perfect copies of content
  • 10 Adapting content for use in different environments
  • 11 Making electronic transactions
  • 12 Authenticating a device
  • 20 Identifying content
  • 22 Authenticating users
  • 23 Expressing contracts and rights
  • 27 Verifying integrity of content
  • 28 Verifying authenticity of content
  • 32 Encryption and decryption of content
  • 37 Software integrity verification and authentication
  • 38 Use of a secure clock (conditional on content requiring it)
  • 39 Secure storage
5. TRUs used
  • TRU #07 to use content whose copyright has expired [RQ15]
  • TRU #18 to apply a rating to a piece of content [TBD]
  • TRU #19 of continued access [RQ10]
  • TRU #27 to make prohibited content inaccessible [TBD]
  • TRU #29 for digital media rental [TBD]
  • TRU #57 to choose the service [RQ61]
  • TRU #58 to choose the delivery system [TBD]
  • TRU #62 of applying technological access restrictions [TBD]
  • TRU #68 to assign content description [TBD]
    [TBD] to be determined
6. Benefits of DMBM  
7. Requirements

DEU #02 Browsing and selecting from a large number of content

  • Support for listing of DMP conforming content.
  • Support for meta data navigation.
    • Sorting on fields
    • Searching on field data
    • Filtering on field data
  • Support for indicating a selection from a listing.

DEU #05 Accessing governed content with a single device

  • Negotiation and adaptation of DRM requirements/capabilities.
  • Negotiation and adaptation of content format.

DEU #06 Making perfect copies of content

  • Support for making a copy of the content in its original form
  • Support for indicating the authorization for making a copy

DEU #10 Adapting content for use in different environments

  • Support the declaration of information necessary for the adaptation of content
  • Support for the communication of adaptation information
  • Support for adaptation negotiation

DEU #11 Making electronic transactions

  • Support of a broad range of payment methods and mechanisms

DEU #12 Authenticating a device

  • Negotiation of device authentication method.

DEU #20 Identifying content

  • Support for the unambiguous and unique identification of content.

DEU #22 Authenticating users

  • Negotiation of User authentication method.

DEU #23 Expressing contracts and rights

  • Binding entitlements to specific content
  • Binding entitlements to a specific User or groups of Users
  • Binding entitlements to a specific device or class of devices
  • Machine readable entitlements
  • Determination of entitlement authenticity and integrity.

DEU #27 Verifying integrity of content

  • Support for detecting un-authorized changes in the content
    • Support for verification of integrity
    • Support for authenticating integrity verification data

DEU #28 Verifying authenticity of content

  • Support for verifying the source of content

DEU #32 Encryption and decryption of content

  • Support for declaring and negotiating content encryption/decryption algorithms
  • Requirements #66 69, #73 76, 79

DEU #37 Software integrity verification and authentication

  • Support for the digital signing and subsequent verification of code elements.

DEU #38 Use of a secure clock (conditional on content requiring it)

  • Protocols for connecting to a source of secure time.

DEU #39 Secure storage

  • Support for the secure local storage of large amounts of data

TRU #07 to use content whose copyright has expired [RQ15]

  • Support for access and use DMP content whose copyright has expired

TRU #19 of continued access [RQ10]

  • Support for continuous access to DMP content by DMP users

TRU #57 to choose the service [RQ61]

  • Support for free choice of services independently of the media item and the license.

Requirements for the following TRUs have issues to be resolved on an expedited basis: 18, 27, 29, 58, 62, 68

8 References