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Claude AI solves 25-year NIST elliptic curve seed mystery

Anthropic's Claude research model has solved a 25-year-old mystery regarding the origin of seeds used in five NIST elliptic curves. The model determined that the seeds for P-192, P-224, P-256, P-384, and P-521 were not derived from a secret hash or passphrase, as previously speculated. Instead, they were generated by the C library's lrand48 pseudorandom number generator, initialized with Unix timestamps between May 1997 and April 1998. This finding, which Anthropic's Frontier Red Team reported, addresses long-standing concerns about potential backdoors in the widely used cryptographic standards, though Anthropic emphasizes it does not indicate a break in ECDSA or a weakness in the curves themselves. The team has published reproduction code, and cryptographer Filippo Valsorda confirmed the findings, leading to a $36,864 donation to the Internet Security Research Group. AI

IMPACT Removes a significant source of suspicion regarding potential backdoors in widely used cryptographic standards.

RANK_REASON AI model solves a long-standing cryptographic mystery, with independent verification and a bounty claim. [lever_c_demoted from research: ic=1 ai=1.0]

Read on dev.to — Anthropic tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Claude AI solves 25-year NIST elliptic curve seed mystery

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AI model solves a long-standing cryptographic mystery, with independent verification and a bounty claim. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. dev.to — Anthropic tag TIER_1 English(EN) · TechPulse ·

    Claude Solves 25-Year Mystery Behind NIST Elliptic Curve Seeds

    <p>Anthropic’s Frontier Red Team reported on October 16, 2026, that an internal Claude research model reconstructed the origin of the seeds behind five widely used NIST elliptic curves in under half an hour. The seeds for P-192, P-224, P-256, P-384 and P-521 were not the result o…