Physix FrontierPhysix Frontier · News Briefing Card (IT Home · Oct 17, 2026)
Anthropic: Claude Traces NIST Elliptic Curve Seeds in 30 Minutes
KEY FACTS
- Anthropic published a blog post on October 16, saying internal research used the Claude model to complete the tracing.
- Claude traced the seed origins of five NIST standard elliptic curves in under 30 minutes.
- These seeds were provided by the NSA, and their generation process had remained undisclosed since being incorporated into the standard in 2000.
- The seeds actually came from the C language library pseudorandom number generator lrand48, with a Unix timestamp as input.
- The P-256 seed corresponds to August 16, 1997, as the 1,842nd candidate value, and the team has released reproduction code.
KEY DATA
under 30 minutesTracing time
about 26 yearsCold case duration
5Number of curves involved
1,842 roundsP-256 candidate round
PHYSIX OBSERVATION
AI is beginning to take on high-threshold reasoning tasks such as cryptographic forensics, where the value lies not in compute power but in pattern recognition and reverse deduction. This case reduces suspicions that parameters were implanted with backdoors, but details such as the B-163 seed remain unexplained, showing that the conclusion covers only part of the puzzle. For the industry, the model's reproducible auditing capability may become a new tool for standards-setting.
Source: IT Home report