Multiple DRM management

• US 20090210346A1
• Filed: 04/21/2009
• Published: 08/20/2009
• Est. Priority Date: 03/01/2006
• Status: Abandoned Application

• Current Assignee: Brant L. Candelore
• Original Assignee: Brant L. Candelore
• Inventors: Candelore, Brant L.
• Application Number:
  US12/386,632
• Publication Number:
  US 20090210346A1
• Time in Patent Office: Days
• US Class Current: 705/57
• CPC Class Codes: G06Q 20/3829 involving key management
• CPC Class Codes: H04L 2209/603 Digital right managament [DRM]
• CPC Class Codes: H04L 63/0485 Networking architectures for enhanced packet encryption processing, e.g. offloading of IPsec packet processing or efficient security association look-up
• CPC Class Codes: H04L 63/20 for managing network security; network security policies in general filtering policies H04L63/0227
• CPC Class Codes: H04L 9/083 involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]

Abstract

A method for enabling a single assembly of content to be played on a plurality of player devices, each having at least one available DRM algorithm, wherein the DRM algorithms for the player devices need not necessarily be the same involves registering a plurality of player devices associated with a client with a database registry residing in a programmed processor, wherein each of the plurality of player devices is enabled to play content using at least one DRM algorithm when an appropriate license has been secured; registering the one or more associated DRM algorithms with each player device; upon receipt of a request for delivery of specified content to the client, searching the database registry for a list of compatible devices and compatible DRM algorithms for the content; obtaining a plurality of licenses to the content, at least one for each DRM algorithm for the player devices associated with the client; obtaining the content from a content provider; obtaining a shared key from a key generator for the one or more DRM algorithms; and encrypting the content under each of the DRM algorithms using the shared key to produce encrypted content. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Claims

1. A method for enabling a single assembly of content to be played-on a plurality of player devices, each having at least one available digital rights management (DRM) algorithm, wherein the DRM algorithms for the player devices need not necessarily be the same, comprising:

registering a plurality of player devices associated with a client with a database registry residing in a programmed processor, wherein each of the plurality of player devices is enabled to play content using at least one (DRM) algorithm when an appropriate license has been secured;

upon registering the plurality of player devices, registering the one or more associated DRM algorithms with each player device;

upon receipt of a request for delivery of specified content to the client, searching the database registry for a list of compatible devices and compatible DRM algorithms for the content;

obtaining a plurality of licenses to the content, at least one for each DRM algorithm for the player devices associated with the client;

obtaining the content from a content provider;

obtaining a shared key from a key generator for the one or more DRM algorithms; and

encrypting the content under each of the DRM algorithms using the shared key to produce encrypted content.

2. The method according to claim 1, further comprising delivering the encrypted content to the client.

3. The method according to claim 1, wherein the plurality of licenses are obtained from at least one licensing server.

4. The method according to claim 1, wherein the encrypted content is delivered to the client via a transaction manager.

5. A computer readable storage medium storing instructions which, when executed on a programmed processor, carry out a process according to claim 1.

6. A system for enabling a single assembly of content to be played on a plurality of player devices, each having at least one available digital rights management (DRM) algorithm, wherein the DRM algorithms for the player devices need not necessarily be the same, comprising:

a programmed processor having a database that registers a plurality of player devices associated with a client with a database registry, wherein each of the plurality of player devices is enabled to play content using at least one (DRM) algorithm when an appropriate license has been secured;

the database further registering one or more associated DRM algorithms with each player device;

a transaction coordinator that, upon receipt of a request for delivery of specified content to the client, obtains from the database a list of compatible devices and compatible DRM algorithms for the ordered content;

the transaction coordinator further obtaining a plurality of licenses to the content, at least one for each DRM algorithm for the player devices associated with the client;

a content provider that provides the content;

a key generator that generates a key shared among the DRM algorithms; and

a DRM packager that encrypts the content using a key shared among the DRM algorithms to produce encrypted content.

7. The system according to claim 6, further comprising at least one licensing server that provides a plurality of licenses to the content to the transaction coordinator.

8. The system according to claim 6, further comprising means for delivering the encrypted content to the client.

9. The system according to claim 6, wherein the DRM packager delivers the encrypted content directly to the client.

10. The system according to claim 6, wherein the DRM packager delivers the encrypted content to the client via the transaction manager.

11. The system according to claim 6, wherein the database operates under control of the transaction manager.

12. The system according to claim 6, wherein the transaction manager, DRM packager and license server operate under control of the content provider.

13. The system according to claim 6, wherein the DRM packager operates under control of the content provider.