dev.to· Oct 17, 2026· by gabrielanhaia

Claude Traced the NIST Curve Seeds to a 1997 Clock and lrand48. Nothing to Rotate on P-256

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Anthropic says Claude found the NIST P-256 seeds came from lrand48 seeded with a 1997 timestamp. Valsorda verified it. Nothing to rotate; check your own RNGs.
🎯 Vulnerability: Web Security Vulnerability
💡 Defense Fix: Implement strict input validation, contextual output encoding, and enforce least-privilege authorization controls.
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