SenTrojan analog hardware Trojan framework for sensors
Original title: SenTrojan: Revealing Analog Hardware Trojan Attacks on Sensors
SenTrojan implants hidden attack surfaces in sensors via supply-chain compromise for DoS or spoofing.
SenTrojan is an analog hardware Trojan framework that embeds malicious functionality into shared analog signal circuitry across sensor architectures. It activates via crafted external physical signals to induce permanent denial-of-service, static, or dynamic spoofing. Two designs, Logic-Rule-Driven and Physical-Effect-Driven, achieve over 95% trigger success rate across 14 sensors with high behavioral similarity to benign operation.
- First systematic study of analog sensor Trojans
- Embeds attacks in common analog circuitry
- Activates via physical signals for DoS or spoofing
- Zero false-trigger rate in LRD designs
- <5% average deviation in drift and noise
From the original article
1 min read at arxiv.orgSensors bridge the physical and digital worlds, making their integrity critical to cyber-physical system security. Existing sensor attacks largely exploit unintended and sensor-specific physical vulnerabilities, limiting their generalizability and motivating a different threat model, i. e.
By Kun Wang · arxiv.org
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