Reconfigurable Field Effect Transistors Design Solutions for Delay-Invariant Logic Gates
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
Reconfigurable field effect transistors (RFETs) are an emerging technology platform that offers the possibility to merge {n} -type and {p} -type functionalities in a single device. From the circuit perspective, this feature enables layout camouflaged designs by realizing polymorphic logic gates with dynamically reconfigurable functions. In this work, mixed-mode simulations employing a technology computer-aided design (TCAD) model of RFETs with three gates are presented. Three different designs for reconfigurable NAND/NOR logic gates are analyzed in order to optimize the equalization of both operational modes delay traces. Moreover, work function fluctuations arising from process variations are considered to prove that their inevitable presence can be exploited to further increase the level of obfuscation between those modes. Statistical analysis of the results from 100 simulated devices shows effective overlapping of the distribution of the delays extracted at half the value of the drain voltage. Together with a good resilience against supply voltage variations in fault induction attacks schemes, these results suggest how this emerging technology can grow up and evolve to play an interesting role in the field of hardware security.
Details
Original language | English |
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Article number | 2 |
Pages (from-to) | 107-110 |
Number of pages | 4 |
Journal | IEEE Embedded Systems Letters |
Volume | 14 |
Issue number | 2 |
Publication status | Published - Jun 2022 |
Peer-reviewed | Yes |
External IDs
Scopus | 85123380739 |
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Mendeley | 0150e538-69dd-3215-ba05-f6f9e825ff8e |
dblp | journals/esl/GalderisiMT22 |
unpaywall | 10.1109/les.2022.3144010 |
Keywords
DFG Classification of Subject Areas according to Review Boards
ASJC Scopus subject areas
Keywords
- Hardware security, process variations, reconfigurable field effect transistors (RFETs), side-channel attacks, timing attacks