Create test PSBT files which are valid, but garbage values
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Updated
Dec 3, 2025 - Python
Create test PSBT files which are valid, but garbage values
Binary-verified reverse engineering of the COLDCARD Mk3 weak-RNG vulnerability (4.0.1-4.1.9): root cause at the linker boundary, bounded PoC, and seed-to-xpub pipeline
Exact-model scanners for publicly known weak-RNG Bitcoin wallet vulnerabilities (Milk Sad, Trust Wallet, COLDCARD Mk2/3) plus HNP lattice attack PoC.
Security-audit research code for the deterministic Yasmarang RNG in Coldcard hardware wallets (Mk2/Mk3/Mk4/Q/Mk5)
Independent Python script to verify Coldcard dice entropy — including the "Add dice rolls" re-seeding mechanism, unsupported by Coldcard's own script.
🧟 COLDCARD firmware with its crypto library (libngu) replaced by trezor-crypto. Unofficial, unaudited hobby fork — can brick your device and lose funds. Not affiliated with Coinkite or SatoshiLabs.
Peter Todd's push-button RNG on an ESP32-S3 Reverse TFT Feather: BIP39 seeds from human timing entropy
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