Journal
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
Volume 69, Issue 7, Pages 3169-3173Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCSII.2022.3165709
Keywords
Radio frequency; Transceivers; Integrated circuits; Circuit faults; Security; Logic gates; Histograms; Hardware security and trust; IP; IC piracy; locking; RF transceivers
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Funding
- Mexican National Council for Science and Technology (CONACYT)
- Doctoral School EDITE de Paris
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This paper demonstrates system-level locking for RF transceivers as an anti-piracy security technique for the first time. By leveraging a state-of-the-art logic locking technique to obfuscate digital blocks in the signal path, the locking strategy makes RF performance key-dependent. The technique offers several advantages, including general applicability, attack resilience, transparency when the correct key is used, and minimum overheads. A proof-of-concept is shown through hardware measurements.
We demonstrate for the first time system-level locking for RF transceivers serving as an anti-piracy security technique. The locking strategy is to make RF performance key-dependent by leveraging a state-of-the-art logic locking technique to obfuscate digital blocks in the signal path. The technique presents several advantages, including general applicability, effective locking for incorrect keys, attack resilience, transparency when the correct key is used, minimum overheads, and ease of implementation. We show that logic locking cannot be blindly applied in this context and, in this regard, we show how it can be adapted towards effective RF transceiver locking. A proof-of-concept is demonstrated with hardware measurements.
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