Anthropic: Claude Traced NIST ECDSA Curve Seeds to a 1990s RNG

Anthropic reports that Claude independently traced the origin of NIST's ECDSA elliptic curve seeds back to a 1990s random number generator, a cryptographic mystery that has long fueled speculation about potential backdoors or weaknesses in these widely-used curves. This represents a significant research finding because NIST curves underpin TLS, code signing, and countless authentication systems used in production software today. The discovery demonstrates Claude's ability to perform deep, multi-step technical research that combines historical investigation with mathematical analysis — well beyond standard code generation tasks. For security engineers and cryptographers, this finding may reopen conversations about the trustworthiness of NIST P-curves and accelerate adoption of alternatives like Curve25519. Developers building security-critical systems should monitor the full technical disclosure from Anthropic closely.