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Photon-Emission-Guided Laser Fault Injection Enables RP2350 Secure Debug

220 points · 92 comments · synack

  1. nullc · · focus · HN ↗
    I'm confused by a number of comments here and the article seemingly taking a position that a $250k lab instrument is required.

    For one a similar instrument can be constructed from surplus parts for far less. Secondly, it's a single bit flip required. Now knowing the the technique works, a harness could be built that attempts it scattershot without the precise targeting and just has to try a lot of times. Using a different stimulus, e.g. xray it might well be possible without deencapsulating the part.

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