METHOD AND SYSTEM FOR UNIFIED MOBILE CONTENT PROTECTION
First Claim
1. A system for protecting media items delivered over the Internet to mobile devices wherein a license to each media item for a given mobile device is individualized to the given mobile device.
3 Assignments
0 Petitions
Accused Products
Abstract
Media content is delivered to a variety of mobile devices in a protected manner based on client-server architecture with a symmetric (private-key) encryption scheme. A media preparation server (MPS) encrypts media content and publishes and stores it on a content delivery server (CDS), such as a server in a content distribution network (CDN). Client devices can freely obtain the media content from the CDS and can also freely distribute the media content further. They cannot, however, play the content without first obtaining a decryption key and license. Access to decryption keys is via a centralized rights manager, providing a desired level of DRM control.
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Citations
26 Claims
- 1. A system for protecting media items delivered over the Internet to mobile devices wherein a license to each media item for a given mobile device is individualized to the given mobile device.
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7. A method for protecting content to be delivered to client devices via a content delivery network, comprising:
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creating a media encryption key on a per-media basis during ingestion of media; encrypting the media using the media encryption key; pushing the encrypted media to the content delivery network for later delivery to client devices. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for delivering protected content to a client device, comprising:
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registering the client device; obtaining the license for use of the protected content; decrypting the protected content; and playing the decrypted content using a player of the client device. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification