Enabling delivery of protected content using unprotected delivery services

• US 9,948,695 B2
• Filed: 03/16/2012
• Issued: 04/17/2018
• Est. Priority Date: 03/16/2012
• Status: Active Grant

• Current Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Original Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Inventors: Vale, Rajesh J., De Vleeschauwer, Danny
• Primary Examiner(s): Waliullah, Mohammed
• Application Number:
  US13/422,447
• Publication Number:
  US 20130246803A1
• Time in Patent Office: 2,223 Days
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04N 21/23476 by partially encrypting, e.g. encrypting the ending portion of a movie
• CPC Class Codes: H04N 21/4622 Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet web site content organization and management for information retrieval from the Internet G06F16/958; transmission by internet of broadcast information H04H60/82; stock exchange data over packet-switching network H04L12/1804; push services including data channel over packet-switching network H04L12/1859
• CPC Class Codes: H04N 21/8456 by decomposing the content in the time domain, e.g. in time segments

Abstract

Disclosed are an apparatus and method configured to perform media file encryption. One example method may include retrieving a media file stored in a memory during a play time operation, executing the media file and receiving additional portions of the media file during the play time operation. The method may also include processing the media file and the additional portions of the media file to generate an output media and displaying the output media on a display of a user device.

Claims

1. A method of media distribution, comprising:

retrieving, by a processor, at least one media file during a play time operation;

executing, by the processor, the at least one media file;

directing the at least one media file to a network abstraction layer unit unwrapper configured to parse the at least one media file for identifiers of predefined gaps in the at least one media file;

receiving, by the processor, additional portions of the at least one media file during the play time operation based on the identifiers;

processing, by the processor, the at least one media file and the additional portions of the at least one media file to generate an output media; and

displaying, by the processor, the output media on a display of a user device; and

wherein the additional portions of the at least one media file comprise metadata that includes a first decryption key provided to a plurality of user devices and a second decryption key specific to the user device.

2. The method of claim 1, wherein removing the additional portions of the at least one media file are removed prior to receiving the at least one media file at the user device.

3. The method of claim 1, wherein the additional portions of the at least one media file comprise media content associated with the at least one media file and wherein the metadata is associated with an encryption algorithm used to encrypt the additional portions of the at least one media file.

4. The method of claim 1, comprising:

replacing the predefined gaps in the at least one media file with the received additional portions of the at least one media file.

5. The method of claim 4, wherein the predefined gaps comprise at least one of dummy bytes, all one bits and all zero bits.

6. An apparatus configured to perform media distribution, comprising:

a receiver configured to receive at least one media file;

a memory configured to store the at least one media file; and

a processor configured to

retrieve the at least one media file from the memory during a play time operation and execute the at least one media file,

direct the at least one media file to a network abstraction layer unit unwrapper configured to parse the at least one media file for identifiers of predefined gaps in the at least one media file,

receive additional portions of the at least one media file during the play time operation based on the identifiers, and

wherein the processor is further configured to process the at least one media file and the additional portions of the at least one media file to generate an output media, and display the output media on a display of a user device, and

wherein the additional portions of the at least one media file comprise metadata that includes a first decryption key provided to a plurality of user devices and a second decryption key specific to the user device.

7. The apparatus of claim 6, wherein the additional portions of the at least one media file are removed prior to receiving the at least one media file.

8. The apparatus of claim 6, wherein the additional portions of the at least one media file comprise media content associated with the at least one media file and wherein the metadata is associated with an encryption algorithm used to encrypt the additional portions of the at least one media file.

9. The apparatus of claim 6, wherein the processor is further configured to replace the predefined gaps in the at least one media file with the received additional portions of the at least one media file.

10. The apparatus of claim 9, wherein the predefined gaps comprise at least one of dummy bytes, all one bits and all zero bits.

11. A non-transitory computer readable storage medium configured to store instructions that when executed cause a processor to perform media distribution, the processor being configured to perform:

retrieving at least one media file during a play time operation;

executing the at least one media file;

directing the at least one media file to a network abstraction layer unit unwrapper configured to parse the at least one media file for identifiers of predefined gaps in the at least one media file;

receiving additional portions of the at least one media file during the play time operation based on the identifiers;

processing the at least one media file and the additional portions of the at least one media file to generate an output media; and

displaying the output media on a display of a user device; and

wherein the additional portions of the at least one media file comprise metadata that includes a first decryption key provided to a plurality of user devices and a second decryption key specific to the user device.

12. The non-transitory computer readable storage medium of claim 11, wherein the additional portions of the at least one media file are removed prior to receiving the at least one media file at the user device.

13. The non-transitory computer readable storage medium of claim 11, wherein the additional portions of the at least one media file comprise media content associated with the at least one media file and wherein the metadata is associated with an encryption algorithm used to encrypt the additional portions of the at least one media file.

14. The non-transitory computer readable storage medium of claim 11, wherein the processor is configured to perform:

replacing the predefined gaps in the at least one media file with the received additional portions of the at least one media file, and wherein the predefined gaps comprise at least one of dummy bytes, all one bits and all zero bits.