Content-data processing apparatus, content-data processing...

Details Content-data processing apparatus, content-data processing... Content-data processing apparatus, content-data processing...

2004-10-26

2010-10-05

Korzuch, William R (Department: 2431)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

C713S193000, C726S026000, C726S031000, C705S059000

Reexamination Certificate

active

07809956

ABSTRACT:
In a music-content management system, a client handles three types of data, i.e., a file for encrypting content and storing the content, a key that encrypted the content, and a use condition description for each service in which the content is used. The file stores one type of content encryption system and one type of encrypted content. The file also stores information regarding use condition descriptions for respective services.

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