Stable disc controller ID from unstable comparator outputs

Details Stable disc controller ID from unstable comparator outputs Stable disc controller ID from unstable comparator outputs

2004-06-29

2010-12-07

Korzuch, William R (Department: 2431)

Cryptography

Key management

Having particular key generator

C380S043000, C380S047000, C380S228000, C369S030580

Reexamination Certificate

active

07848518

ABSTRACT:
A method for generating a root key is described. Stable bits of a plurality of comparator outputs are identified. The root key is selected from a number of the identified stable bits. A statistically unique value is calculated from the root key using a cryptographically secure function. An identifier of the identified stable bits and the statistically unique value are stored in a memory.

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