Anthropics' Claude cracks a 25-year-old NSA cryptography mystery in under 30 minutes
Anthropic's AI model Claude has solved a 25-year-old cryptography puzzle.

Proof1 independent outlet
Key points
- The mysterious seeds behind NIST's standard curves for digital signatures were provided by the NSA without explanation, raising long-standing suspicion about built-in backdoors.
- Claude figured out in under 30 minutes that the seeds came from "lrand48," a simple C random number generator, making deliberate backdoors far less likely.
- The article Anthropics' Claude cracks a 25-year-old NSA cryptography mystery in under 30 minutes appeared first on The Decoder.
Sources (1)
- [1]Anthropics' Claude cracks a 25-year-old NSA cryptography mystery in under 30 minutesThe Decoder · Oct 17, 02:42 PM
Anthropic's AI model Claude has solved a 25-year-old cryptography puzzle.
The mysterious seeds behind NIST's standard curves for digital signatures were provided by the NSA without explanation, raising long-standing suspicion about built-in backdoors.
Extractive summary: sentences quoted from the sources.
Before this
- Oct 16, 2026Working at the frontier shapes expectations for the future
- Oct 16, 2026Designing more efficient quantum circuits with Claude
- Oct 16, 2026Claude reveals ECDSA curve origins
- Oct 16, 2026How employment is changing at Anthropic
- Oct 15, 2026Anthropic gives outside AI watchdog “employee-like” access
- Oct 15, 2026Anthropic tells investors quarterly revenue up nearly 50% to $16.8bn ahead of IPO



