Researchers pulled a 256-bit key out of a device by filming ...

Sam Bent

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hex

774ae66a2371f02768e0d742d846b9b052ac91891d9e489f1dcff53a633c7d17

nevent

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Kind-1 (TextNote)

2026-08-27T19:56:09Z

Researchers pulled a 256-bit key out of a device by filming its power LED. The status light flickers with the chip's power draw, and that leaks the key. A full ECDSA key was recovered from 16m away through a window via a hijacked camera. https://www.nassiben.com/video-based-crypta

原始 JSON

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  "id": "774ae66a2371f02768e0d742d846b9b052ac91891d9e489f1dcff53a633c7d17",
  "pubkey": "2786c134148537aa3142222cccc1b6fcf4863643ca78a9625d91aa9748d0e478",
  "created_at": 1787860569,
  "tags": [],
  "content": "Researchers pulled a 256-bit key out of a device by filming its power LED. The status light flickers with the chip's power draw, and that leaks the key. A full ECDSA key was recovered from 16m away through a window via a hijacked camera. https://www.nassiben.com/video-based-crypta",
  "sig": "3a592f0b4501b42ef02a4ad81d57d779b6d12b05abd65969b5bcc2aae170ce2f3002fe114dcfe31a4fcdc77d3c7e3b50cd688c35dc1817fa0441ca5e66cd9031"
}