Digital rights management metafile, management protocol and applications thereof

• US 8,832,467 B2
• Filed: 05/15/2008
• Issued: 09/09/2014
• Est. Priority Date: 05/16/2007
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Krig, Scott
• Primary Examiner(s): SHAW, PETER C
• Application Number:
  US12/121,639
• Publication Number:
  US 20080288788A1
• Time in Patent Office: 2,308 Days
• Field of Search: 713/193, 707/736, 707/758
• US Class Current: 713/193
• CPC Class Codes: G06F 21/10 Protecting distributed programs or content, e.g. vending or licensing of copyrighted material protection in video systems or pay television H04N7/16 ; Digital rights management [DRM]
• CPC Class Codes: G06F 21/62 Protecting access to data via a platform, e.g. using keys or access control rules

Abstract

Methods, systems and computer program products to create and manage encapsulated Digital Rights Management (DRM) metafiles, also referred to as objects, are provided herein. Each object comprises a file header section, an encrypted webpage metadata section, an encrypted preferences section, an encrypted tracking section, an encrypted license section, a media file section and an encrypted file trailer section. Each section comprises multiple attributes. A metabase is provided herein to catalog objects, sections and attributes. Instructions are provided herein to allow for setting a current object, section or attribute; retrieving an object, section or attribute; and enumerating objects, sections and attributes in a device memory.

Claims

1. A method to create a Digital Rights Management (DRM) media object comprising a media file and an associated DRM license, for storage in a memory of a computational device, comprising:

creating a media file section in the DRM media object, wherein the media file section is configured to store the media file;

creating an encrypted license section configured to store at least one DRM license associated with the media file;

creating a file header section configured to store a first data integrity code, a media file type, a unique identification, a size of the DRM media object and pointers to multiple sections of the DRM media object;

creating an encrypted preferences section configured to store user preferences for utilizing the media file;

creating an encrypted tracking section configured to store a media identification, a computational device identification, a usage history and a DRM history;

creating an encrypted file trailer section configured to indicate termination of the DRM media object and store a second data integrity code and the size of the DRM media object;

creating an encrypted webpage metadata section in the DRM media object, wherein the encrypted webpage metadata section is configured to store data that enables the computational device to display a web page with information on media stored within the DRM media object, and wherein the DRM media object encapsulates the media file section and the encrypted webpage metadata section as a single unified object; and

storing the DRM media object that includes both the media file section and the encrypted webpage metadata section in the memory of the computational device.

2. The method of claim 1, further comprising adding metadata to the DRM media object.

3. The method of claim 1, wherein the unique identification identifies the DRM media object, each section within the DRM media object and each attribute within each section and allows a user to modify each attribute within each section of each DRM media object.

4. The method of claim 1, wherein the media file is one or more of an audio, video or data file.

5. The method of claim 1, wherein the user preferences are one or more of volume settings for the media file, audio equalizer settings for the media file, and contrast and brightness settings for the media file.

6. The method of claim 1, wherein the media identification includes one or more of:

a date of media file creation, a media file creator, a purchasing transaction information receipt for a vendor and a purchaser, and a time and date when the media file was played.

7. The method of claim 1, wherein the computational device identification includes one or more of:

an identification number for the computational device and an internet protocol address for the computational device.

8. The method of claim 1, wherein the DRM history includes data on a provider or the DRM license and conditions for expiry of the DRM license.

9. The method of claim 1, wherein the DRM media object is encrypted in one or more of an Advanced Encryption Standard (AES), Data Encryption Standard (DES), Secure Hash Algorithm 1 (SHA 1), Secure Hash Algorithm 2 (SHA 2), Elliptic Curve Cryptography (ECC), Message Digest 4 (MD4), Message Digest 5 (MD5), Rivest Cipher 4 (RC4) and Rivest Cipher 5 (RC5).

10. A system to create a Digital Rights Management (DRM) media object that includes both a media file and an associated DRM license, comprising:

a memory;

a processor coupled to the memory and configured to store instructions that when executed by the processor cause the processor to;

create an encrypted license section configured to store at least one DRM license associated with the media file;

create a file header section configured to store a first data integrity code, a media file type, a unique identification, a size of the DRM media object and pointers to multiple sections of the DRM media object;

create an encrypted preferences section configured to store user preferences for utilizing the media file;

create an encrypted tracking section configured to store a media identification, a computational device identification, a usage history and a DRM history;

create an encrypted file trailer section configured to indicate termination of the DRM media object and store a second data integrity code and the size of the DRM media object;

create a media file section in the DRM media object, wherein the media file section is configured to store the media file;

create an encrypted webpage metadata section in the DRM media object, wherein the encrypted webpage metadata section is configured to store data that enables a computational device to display a web page with information on media stored within the DRM media object, and wherein the DRM media object encapsulates the media file section and the encrypted webpage metadata section as a single unified object; and

store the DRM media object that includes both the media file section and the encrypted webpage metadata section in a memory of the computational device.

11. The system of claim 10, wherein the memory further includes instructions that cause the processor to add metadata to the DRM media object.

12. The system of claim 10, wherein the unique identification identifies the DRM media object, each section within the DRM media object and each attribute within each section and allows a user to modify each attribute within each section of each DRM media object.

13. The system of claim 10, wherein the media file is one or more of an audio, video or data file.

14. The system of claim 10, wherein the user preferences are one or more of:

volume settings for the media file, audio equalizer settings for the media file, and contrast and brightness settings for the media file.

15. The system of claim 10, wherein the media identification includes one or more of:

a date of media file creation, a media file creator, a purchasing transaction information receipt for a vendor and a purchaser, and a time and date when the media file was played.

16. The system of claim 10, wherein the computational device identification includes one or more of:

an identification number for the computational device and an internet protocol address for the computational device.

17. The system of claim 10, wherein the DRM history includes data on a provider or the DRM license and conditions for expiry of the DRM license.

18. A method to create a Digital Rights Management (DRM) media object comprising a media file and an associated DRM license, for storage in a memory of a computational device, comprising:

creating a media file section configured to store the media file;

creating an encrypted license section configured to store a DRM license associated with the media file;

creating a file header section configured to store a first data integrity code, a media file type, a unique identification, a size of the DRM media object and pointers to multiple sections of the DRM media object;

creating an encrypted webpage metadata section configured to store data that enables the computational device to display a web page with information on media stored within the DRM media object;

creating an encrypted preferences section configured to store user preferences for utilizing the media file;

creating an encrypted tracking section configured to store a media identification, a computational device identification, a usage history and a DRM history;

creating an encrypted file trailer section configured to indicate termination of the DRM media object and store a second data integrity code and a size of the DRM media object; and

storing the DRM media object in the memory of the computational device.