Methods and systems of protecting digital content

Details Methods and systems of protecting digital content Methods and systems of protecting digital content

2006-06-20

2006-06-20

Revak, Christopher (Department: 2131)

Cryptography

Key management

Key distribution

C380S285000, C726S026000, C705S051000

Reexamination Certificate

active

07065216

ABSTRACT:
Methods and systems are described that enable protection of digital content, such as movies and the like, by making pirated copies traceable back to a unique decryption key that was utilized to decrypt the originally encrypted content. Various embodiments can intrinsically link any unauthorized copies back to a unique cryptographic key or key collection that was used when the genuine copy was reproduced.

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