COLDCARD RNG incident the public record, collected and explained
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switck/libngu: one key, two names

dylanleclair1-switck-key-attribution

https://gist.github.com/dylanleclair1/67d160af313be59851b88d1a81f0d762

Organisation
dylanleclair1
Evidence role
Independent primary analysis
Published
2026-08-05
Source changes
0
Detected differences
0
Unreviewed
0
Copies held
1

Attribution argument that the pseudonymous GitHub account switck and Peter D. Gray of Coinkite are one person, resting on a 2020 public exchange read through the GitHub API and on local GPG verification said to show 58 Switck-authored commits carrying valid signatures from Gray's personal key. It then traces commit f19de05, which introduced the STM32 random-number code with the defective guard, to COLDCARD's seed generation. The gist ships a verify.sh so the signature checks can be re-run independently, which is why it is registered as primary work rather than as commentary. Its own text declines to state intent and calls the guard error an ordinary C mistake. The identity attribution, the elimination of alternative explanations and every inference drawn from the commit history are the author's claims, not verified here, and registration is not endorsement of them. This gist is the underlying artefact for the allegation preserved at reddit-switck-identity-claims. The publishing account is recorded as published; this archive does not assert who is behind it. Six revisions within 80 minutes of creation, so it is watched.

Every check is recorded, including checks that found no text change. A detected edit is therefore bounded between two checks. The publisher's exact save time is not observable from this record. Last checked .

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    Excerpt only. The complete copy is held offline and backs quotations on this site. The original publication remains the canonical public source.

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