Secure verification using a set-top-box chip

Details Secure verification using a set-top-box chip Secure verification using a set-top-box chip

2003-11-06

2008-10-07

Moazzami, Nasser (Department: 2136)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

C726S026000

Reexamination Certificate

active

07434065

ABSTRACT:
One or more methods and systems of authenticating or verifying a set-top-box chip in a set-top-box are presented. In one embodiment, a set-top-box incorporates a set-top-box chip used to decode or decrypt media content provided by a cable television operator or carrier. The set-top-box chip incorporates a decryption circuitry, a compare circuitry, a hash function circuitry, a key generation circuitry, a back channel return circuitry, a linear feedback shift register, a timer reset circuitry, a modify enable status circuitry, a one time programmable memory, and a non-volatile memory. The cable TV carrier validates a set-top-box chip used in a set-top-box by way of a verification sequence that requires a successful verification by the set-top-box chip.

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