Anthropic's research team says its Claude model has helped solve a long-running cryptographic mystery: where the seed values used to generate the widely used NIST elliptic-curve standards came from. The finding was set out in a Frontier Red Team report dated October 16, 2026, and summarised in AI news coverage the following day.
According to the report, Claude traced the curve seeds to the lrand48 random-number generator in the C library, seeded with a Unix timestamp, rather than to a deliberately chosen phrase or a hidden parameter. The seeds for the ECDSA curves have been debated for years precisely because their origin was unexplained, which left room for suspicion about how the values were picked.
An independently reproducible, mundane origin matters for trust in the standard. ECDSA underpins digital signatures across the web, finance and software updates, so evidence that the seed generation followed an ordinary, checkable process addresses a foundational question rather than a cosmetic one.
The episode is also an example of artificial intelligence being used as a research tool in mathematics and security: the model worked through the historical puzzle and surfaced a verifiable explanation that specialists can now test themselves. Anthropic has published the work through its red-team research channel for that scrutiny.
