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Accession Number ADA566362
Title Secure Hardware Design for Trust.
Publication Date Aug 2012
Media Count 17p
Personal Author G. S. Rose Y. Pino
Abstract A logic encryption (LE) algorithm has been developed to protect integrated circuits (ICs) from malicious attacks in the current supply chain model. Typical hardware attacks are performed by understanding functionality of designs. This technique is focused on obscuring the functionality of designs by inserting additional gates (called key gates) into the original design. The end user has to provide valid key bits to the key gates in order to enable correct functionality. In this approach, we leverage IC testing concepts to determine the locations of key gates. For XOR and multiplexer gate insertion techniques, Hamming distance (HD) as a security measure was analyzed using 10 benchmark circuits and the proof-of-concept was demonstrated with an AES core on an FPGA board. The goal is to achieve 50% of Hamming distance between the outputs on applying a correct key and an incorrect key. Most of the benchmark circuits encrypted with XOR or MUX gates achieved 50% of HD which proves the strength of the developed technique.
Keywords Algorithms
Cryptography
Field programmable gate arrays
Integrated circuits
Logic
Stinfo(Scientific and information)
Trust
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Source Agency Non Paid ADAS
NTIS Subject Category 62 - Computers, Control & Information Theory
Corporate Author Air Force Research Lab., Rome, NY. Information Directorate.
Document Type Technical report
Title Note Interim technical rept. Aug 2011-Jun 2012.
NTIS Issue Number 1307
Contract Number N/A

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