safety security
The Sensor Lie Left Footprints on the Bus
SentryBus maps where I2C manipulation may remain observable—and where a host-side monitor loses the ability to distinguish it.
Summary
SentryBus maps where I2C manipulation may remain observable—and where a host-side monitor loses the ability to distinguish it.
The proposed monitor uses transaction timing, read and write sequences, transfer lengths, address behavior and raw-data transitions from the host-facing sensor bus. A dual-sided testbed established timing and capture limits, including a low-cost analyzer that could silently truncate data. Controlled attack trials are still outstanding and the authors claim no detection rate, making the negative boundary result as important as the proposed feature set.
Why it matters
SentryBus maps where I2C manipulation may remain observable—and where a host-side monitor loses the ability to distinguish it.
Limits and context
No additional limitation was separately recorded.
Key claims
SentryBus maps where I2C manipulation may remain observable—and where a host-side monitor loses the ability to distinguish it.
Evidence: source-2026-08-19-009
Sources
- arXiv preprint 2608.17082arXiv · primary research
Corrections
No corrections have been recorded for this story.