Secure delivery of encrypted digital content
First Claim
Patent Images
1. A method comprising:
- transmitting a decoder core to be used with a predefined content decoder, the decoder core comprising instructions for causing the predefined content decoder to decrypt an encrypted version of digital content.
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Abstract
A content decoder is split into a decoder core and remaining portions. The decoder core implements decryption of encrypted content according to a selected encryption scheme, and the remaining portions provide an interface between the decoder core and content presentation systems/devices. Isolating the selected encryption scheme within the decoder core allows the content decoder to be produced and delivered to end users before the encryption scheme has been selected or developed. A logical separation of the content decoder from the decryption core allows the decryption core software to be updated and/or changed as needed.
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Citations
30 Claims
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1. A method comprising:
transmitting a decoder core to be used with a predefined content decoder, the decoder core comprising instructions for causing the predefined content decoder to decrypt an encrypted version of digital content. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method comprising:
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receiving a decoder core comprising instructions for decrypting encrypted digital content; and
using the decoder core with a previously acquired content decoder to access the encrypted digital content. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A machine-readable medium embodying information indicative of instructions for causing one or more machines to perform operations comprising:
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defining an interface between a presentation portion and a decryption portion of a digital content player;
identifying a decoder core that uses the interface to effect the decryption portion of the digital content player; and
using the decoder core with the digital content player to access encrypted digital content. - View Dependent Claims (25, 26)
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27. A content decoder comprising:
a module defining an interface between the content decoder and a mutable decoder core comprising instructions for causing the content decoder to decrypt encrypted media. - View Dependent Claims (28)
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29. A system for facilitating secure delivery of digital content, the system comprising:
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means for transmitting in response to a request, software plug-in means for decrypting digital content; and
means for receiving the software plug-in means and for presenting the digital content using the software plug-in means. - View Dependent Claims (30)
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Specification