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Apparatus, system and method for providing cryptographic key information with physically unclonable function circuitry

Patent ·
OSTI ID:1230020
Techniques and mechanisms for providing a value from physically unclonable function (PUF) circuitry for a cryptographic operation of a security module. In an embodiment, a cryptographic engine receives a value from PUF circuitry and based on the value, outputs a result of a cryptographic operation to a bus of the security module. The bus couples the cryptographic engine to control logic or interface logic of the security module. In another embodiment, the value is provided to the cryptographic engine from the PUF circuitry via a signal line which is distinct from the bus, where any exchange of the value by either of the cryptographic engine and the PUF circuitry is for communication of the first value independent of the bus.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation
Patent Number(s):
9,208,355
Application Number:
13/903,813
OSTI ID:
1230020
Country of Publication:
United States
Language:
English

References (4)

Physical unclonable functions for device authentication and secret key generation conference January 2007
A technique to build a secret key in integrated circuits for identification and authentication applications conference January 2004
Cyber-physical security using system-level PUFs conference July 2011
Securing Trusted Execution Environments with PUF Generated Secret Keys conference June 2012

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