System and method for relicensing content

• US 9,864,850 B2
• Filed: 02/11/2014
• Issued: 01/09/2018
• Est. Priority Date: 11/21/2003
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Hug, Joshua D.
• Primary Examiner(s): Obeid, Mamon
• Assistant Examiner(s): Choo, Johann
• Application Number:
  US14/178,110
• Publication Number:
  US 20140317396A1
• Time in Patent Office: 1,428 Days
• CPC Class Codes: G06F 21/105 Arrangements for software license management or administration, e.g. for managing licenses at corporate level
• CPC Class Codes: G06F 21/1078 Logging; Metering
• CPC Class Codes: G06F 21/556 involving covert channels, i.e. data leakage between processes inhibiting the analysis of circuitry or operation with measures against power attack G06F21/755
• CPC Class Codes: G06F 21/602 Providing cryptographic facilities or services
• CPC Class Codes: G06F 2221/2107 File encryption
• CPC Class Codes: H04N 21/25816 involving client authentication restricting access to computer systems by authenticating users using a predetermined code G06F21/33; cryptographic authentication protocols H04L9/32; networks authentication protocols H04L63/08; authentication in wireless network security H04W12/06
• CPC Class Codes: H04N 21/4108 characterised by an identification number or address, e.g. local network address protecting specific internal or external computer components using identification number G06F21/73; network arrangements, protocols or services for addressing or naming H04L61/00
• CPC Class Codes: H04N 21/4325 by playing back content from the storage medium reproduction of recorded television signals H04N5/76; reproduction of recorded television signals H04N9/79
• CPC Class Codes: H04N 21/44204 Monitoring of content usage, e.g. the number of times a movie has been viewed, copied or the amount which has been watched monitoring of user activities for profile generation for accessing a video database G06F16/739; protecting generic digital content where the protection is independent of the precise nature of the content G06F21/10; arrangements for monitoring the use made of the broadcast services in broadcast systems H04H60/31
• CPC Class Codes: H04N 21/4627 Rights management associated to the content security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/6334 for authorisation, e.g. by transmitting a key wireless communications network key management H04W12/04; wireless communications network access security H04W12/08
• CPC Class Codes: H04N 7/17309 Transmission or handling of upstream communications

Abstract

A method of relicensing digital encrypted radio media content transmitted via a network and received by a user electronic device includes receiving a request to relicense an encrypted digital media data file included within digital encrypted radio media content. The encrypted digital media data file is retrieved from the digital encrypted radio media content stored in a memory of the user electronic device. The encrypted digital media data file is decrypted using a radio encryption key to generate an unbound digital media data file. The unbound digital media data file is bound with the user electronic device to generate, a bound encrypted digital media data file. The bound encrypted digital media data file is stored in the memory of the user electronic device.

Claims

1. An electronic device comprising:

a processor;

a computer readable medium storing executable instructions that, when executed by the processor, cause the processor to perform operations comprising;

receiving at the electronic device a request to change a license for a digital media data file from a first license to a second license, wherein the first and second licenses each comprise one of a license associated with streaming radio media content, a license associated with subscription downloads, and a license associated with purchased downloads, wherein the first license is distinct from the second license and wherein the digital media data file is encrypted using a content encryption key, the content encryption key encrypted using a first encryption key associated with the first license;

decrypting at the electronic device the content encryption key using the first encryption key; and

encrypting at the electronic device the content encryption key of the digital media data file using a second, different encryption key associated with the second license;

wherein;

the electronic device comprises, for use during operation of the electronic device, a user interface, display, and radio frequency (RF) communication antenna assembly;

in the operation of the electronic device;

the user interface is to permit user selection of media content corresponding, at least in part, to the digital media data file;

the display is to display, at least in part, at least one user selectable menu command associated, at least in part, with obtaining of the second license, the at least one user selectable menu command being selectable via the user interface;

the antenna assembly is to permit wireless communication related to the second license;

the electronic device is to generate a license request based at least in part upon another encryption key that is to be stored in the electronic device at time of manufacture of the electronic device;

the operations further comprise, in response to the decrypting of the content encryption key, storing record of decryption in a memory of the electronic device.

2. The electronic device of claim 1, the operations further comprising:

locating, based on location information, within the memory of the electronic device, a plurality of chunk files that constitute the digital media data file;

retrieving the plurality of chunk files from the memory; and

processing the plurality of chunk files to generate the digital media data file.

3. The electronic device of claim 2, wherein the location information includes a memory location algorithm and wherein locating comprises locating based on the memory location algorithm.

4. The electronic device of claim 2, wherein the location information includes at least one of a seed content list, a radio playlist, and a mapping file and wherein locating comprises locating based on at least one of the seed content list, the radio playlist, and the mapping file.

5. The electronic device of claim 2, wherein the location information includes a radio playlist, wherein the radio playlist defines a rendering sequence for a plurality of digital media data files that is compliant with The Digital Millennium Copyright Act, and wherein locating comprises locating based on the radio playlist.

6. The electronic device of claim 2, wherein the location information includes a radio playlist, wherein the radio playlist defines a rendering sequence for a plurality of digital media data files that is implemented via a digital rights management process, and wherein locating comprises locating based on the radio playlist.

7. The electronic device of claim 2, wherein the location information includes a radio playlist, wherein the radio playlist defines a rendering sequence for a plurality of digital media data files that is implemented via a digital rights management process, and wherein locating comprises locating based on the radio playlist.

8. The electronic device of claim 2, wherein retrieving the plurality of chunk files comprises retrieving at least two chunk files of the plurality of chunk files that were combined to generate at least two modified chunk files.

9. An electronic device comprising:

a processor;

a computer readable medium storing executable instructions that, when executed by the processor, cause the processor to perform operations comprising;

receiving a request to change a license for a digital media data file from a first license to a second license, wherein the digital media data file is encrypted by a content encryption key, the first and second licenses selected from the group consisting of licenses associated with streaming radio media content, licenses associated with subscription downloads, and licenses associated with purchased downloads, wherein the first license is distinct from the second license;

retrieving the content encryption key of the digital media data file, the content encryption key encrypted by a first encryption key stored on the electronic device and associated with the first license;

decrypting the content encryption key using the first encryption key; and

encrypting the content encryption key of the digital media data file using a second, different encryption key stored on the electronic device and associated with the second license;

wherein;

the electronic device comprises, for use during operation of the electronic device, a user interface, display, and radio frequency (RF) communication antenna assembly;

in the operation of the electronic device;

the user interface is to permit user selection of media content corresponding, at least in part, to the digital media data file;

the display is to display, at least in part, at least one user selectable menu command associated, at least in part, with obtaining of the second license, the at least one user selectable menu command being selectable via the user interface;

the antenna assembly is to permit wireless communication related to the second license;

the electronic device is to generate a license request based at least in part upon another encryption key that is to be stored in the electronic device at time of manufacture of the electronic device;

the operations further comprise storing record of decryption in a memory of the electronic device in response to the decrypting of the content encryption key.

10. The electronic device of claim 9, wherein receiving the request to change the license of the digital media data file comprises receiving a request transmitted in response to receipt of an indication by a user of the user electronic device.

11. The electronic device of claim 10, wherein the indication by the user comprises an indication to purchase the digital media data file, and wherein the second license comprises a license associated with purchased downloads.

12. The electronic device of claim 9, wherein the first encryption key and the second encryption key are selected from a group consisting of a radio encryption key and a user encryption key.

13. The electronic device of claim 9, wherein the digital media data file comprises an audio track, wherein receiving the request to change the license comprises receiving the request to change the license for the audio track.

14. The electronic device of claim 9, wherein receiving the request to change the license for the digital media data file comprises receiving the request to change the license for a digital media data file stored on a storage area of the memory of the user electronic device that is not directly accessible by a user of the user electronic device.

15. The electronic device of claim 14, the operations further comprising storing the digital media data file within a storage area of the memory of the user electronic device that is accessible by a user of the user electronic device.