Bullish

COLDCARD Mk3 Seed Collision Risk: 4.5M States Scanned in 3 Seconds

04:02

Vulnerability allows rapid brute-force of 4.5M RNG states. Duplicate seed phrases possible across devices, posing critical security risks for Bitcoin holders.

Woofun AI reports that an analysis by @KLoaec identifies a critical vulnerability in certain COLDCARD Mk3 wallets, where random number generators may originate from only approximately 4.5 million starting states. A single RTX 4090 graphics card can scan all these possibilities in roughly 3 seconds, or within 50 minutes when accounting for generation uncertainties. The flaw enables different devices to generate identical seed phrases. Assuming 30,000 Mk3 units exist, the analysis estimates around 120 device pairs could produce duplicate random number sequences.

WOOFUN AI

Impact Assessment · Quick Read

This vulnerability exposes a fundamental flaw in the entropy generation of specific hardware wallets, potentially compromising the security of stored Bitcoin. The ability to brute-force seed phrases in seconds drastically reduces the barrier for attackers, shifting the risk profile from theoretical to immediate. Users of affected devices may face significant asset loss if seed collisions occur, highlighting the need for rigorous third-party audits of hardware RNG implementations.
Generated by WOOFUN AI · For reference only, not investment advice

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