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the decoder · October 17, 2026

Claude solves 25-year-old NSA cryptography mystery in 30 minutes

anthropic's claude ai solved a 25-year-old nsa cryptography mystery in under 30 minutes, revealing seeds came from a simple c random number generator. this affects cryptography security and trust.

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anthropic's claude ai solved a 25-year-old nsa cryptography mystery in under 30 minutes. the mystery involved seeds for elliptic-curve digital signatures, standardized by nist in 2000. claude found the seeds came from lrand48, a simple c random number generator, initialized with a unix timestamp. this discovery makes deliberate backdoors less likely and impacts cryptography security and trust.

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