Unique identifier per chip for digital audio/video data...

Details Unique identifier per chip for digital audio/video data... Unique identifier per chip for digital audio/video data...

2003-02-20

2010-11-16

Cervetti, David García (Department: 2436)

Cryptography

Video cryptography

Copy protection or prevention

C726S027000

Reexamination Certificate

active

07835520

ABSTRACT:
The invention provides techniques to implement unique identifier for an integrated chip and how this ID can be employed to enhance the security of content in personal video recorder type systems. The storage device can be a hard disk, a removable storage medium or any other type of storage medium. An integrated circuit (IC) within the personal video recorder stores a unique identifier that is used in for encryption and decryption of data stored on the storage device. Several embodiments are disclosed herein that maintain the secrecy of the unique ID such that it is not easily accessible thereby defeating the security scheme.

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