DevelopingResearch
Anthropic says Claude traced NIST elliptic-curve seeds to a 1990s random number generator
Anthropic's Frontier Red Team says an internal Claude model found, in under half an hour, that the NIST P-192 through P-521 curve seeds came from the C library lrand48 generator seeded with a Unix timestamp, not from hashes. Anthropic says it is not a cryptographic break and makes a backdoor less likely. Some seeds and base points remain unexplained. The $36,864 bounty goes to ISRG.
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Primary source
Anthropicanthropic.com/research/ecdsa-curve-originsCoverage · 5 articles, oldest first
Friday, October 16, 2026
AnthropicPrimary675 pts on HN
Claude reveals ECDSA curve originsFilippo Valsorda
words.filippo.io/seeds-solved/