Contents distribution system

Details Contents distribution system Contents distribution system

2008-04-01

2008-04-01

Moise, Emmanuel (Department: 2137)

Information security

Prevention of unauthorized use of data including prevention...

Access control

C726S030000, C713S193000, C705S055000

Reexamination Certificate

active

10339567

ABSTRACT:
A contents supply apparatus supplies sub-content that relates to main content. A DVD-ROM stores a bind key unique to the DVD-ROM and main content that is a digital work. A main player reads the bind key from the DVD-ROM, acquires sub-content that relates to the main content stored on the DVD-ROM, generates encrypted sub-content by encrypting the acquired sub-content based on the read bind key, and writes the generated encrypted content to an SD memory card. A sub-player reads the bind key from the DVD-ROM, reads the encrypted sub-content from the SD memory card, generates sub-content by decrypting the read encrypted sub-content based on the bind key, and plays back the generated sub-content.

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