Organic keyed encryption

Details Organic keyed encryption Organic keyed encryption

2008-04-09

2011-12-13

Chen, Shin-Hon (Department: 2431)

Cryptography

Key management

Having particular key generator

C380S270000, C705S075000

Reexamination Certificate

active

08077869

ABSTRACT:
An encryption technique that creates a unique encryption key or fingerprint based on unique physical and electrical characteristics of a target electronic assembly to be protected. The encryption key can be constructed by exploiting the manufacturing variances present in all electronic elements including active elements and passive elements. Active elements include, for example: oscillators/clocks, internal I/O controllers, external I/O controllers, memory, processors, and digital power converters. Passive elements include, for example: internal I/O interconnects, external I/O interconnects, memory buses, and power buses. The encryption key can also include one or more environmental condition thresholds.

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Written Opinion of the International Searching Authority of International Application No. PCT/US2009/031188, dated Sep. 1, 2009.

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