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Reduced overhead gate level logic encryption
Conference proceeding

Reduced overhead gate level logic encryption

Kyle Juretus, Ioannis Savidis and IEEE
2016 International Great Lakes Symposium on VLSI (GLSVLSI), v 18-20-, pp 15-20
May 2016

Abstract

Encryption Integrated circuits Logic gates Standards Table lookup Trojan horses
Untrusted third-parties are found throughout the integrated circuit (IC) design flow resulting in potential threats in IC reliability and security. Threats include IC counterfeiting, intellectual property (IP) theft, IC overproduction, and the insertion of hardware Trojans. Logic encryption has emerged as a method of enhancing security against such threats, however, current implementations of logic encryption, including the XOR or look-up table (LUT) techniques, have high per-gate overheads in area, performance, and power. A novel gate level logic encryption technique with reduced per-gate overheads is described in this paper. In addition, a technique to expand the search space of a key sequence is provided, increasing the difficulty for an adversary to extract the key value. A power reduction of 41.50%, an estimated area reduction of 43.58%, and a performance increase of 34.54% is achieved when using the proposed gate level logic encryption instead of the LUT based technique for an encrypted AND gate.

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Web of Science research areas
Computer Science, Hardware & Architecture
Computer Science, Theory & Methods
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