Super-distribution of protected digital content

Details Super-distribution of protected digital content Super-distribution of protected digital content

2006-01-03

2006-01-03

Barrón, Jr., Gilberto (Department: 2132)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

C713S190000, C713S152000, C380S255000, C705S026640, C705S044000, C705S051000, C705S075000

Reexamination Certificate

active

06983371

ABSTRACT:
Briefly according to the present invention, a system, computer readable medium and method to deliver encrypted digital content to from a first system for playing the content to a second system for playing the content. The method on the first user system comprising the steps of: reading from a computer readable medium metadata which has previously been associated with the content; selecting from the metadata associated content to decrypt; establishing a secure connection with an authorization authority, such as a clearinghouse, for decrypting the key used to encrypt the content; receiving a secure container containing the decrypting key for decrypting at least part of the previously encrypted content as permitted; decrypting the content and then encrypting the content with a new encryption key that is generated locally on the end user system.

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