Restricted Authentication and Encryption for Cyber-physical Systems

Conference · Thu Jan 01 04:00:00 EST 2009

OSTI ID:972733

Kirkpatrick, Michael S ^[1]; Bertino, Elisa ^[1]; Sheldon, Frederick T ^[1]

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1. ORNL

Cyber-physical systems (CPS) are characterized by the close linkage of computational resources and physical devices. These systems can be deployed in a number of critical infrastructure settings. As a result, the security requirements of CPS are different than traditional computing architectures. For example, critical functions must be identified and isolated from interference by other functions. Similarly, lightweight schemes may be required, as CPS can include devices with limited computing power. One approach that offers promise for CPS security is the use of lightweight, hardware-based authentication. Specifically, we consider the use of Physically Unclonable Functions (PUFs) to bind an access request to specific hardware with device-specific keys. PUFs are implemented in hardware, such as SRAM, and can be used to uniquely identify the device. This technology could be used in CPS to ensure location-based access control and encryption, both of which would be desirable for CPS implementations.

• Research Organization: Oak Ridge National Laboratory (ORNL); Center for Computational Sciences
• Sponsoring Organization: ORNL Program Development
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 972733
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING
99 GENERAL AND MISCELLANEOUS
CRYPTOGRAPHY
CYBERNETICS
MAN-MACHINE SYSTEMS
SECURITY
authentication
cyber-physical systems
data provenance
physical unclonable function
security