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Claude Takes a Turn With Cryptography’s Very Old Homework

October 17, 2026 at 6:00 PM EDT · New York time

Anthropic’s Claude reportedly solved a 25-year-old puzzle about the unexplained seeds the NSA supplied for NIST’s standard digital-signature curves. The Decoder reports that Claude identified their origin as lrand48, a simple C random number generator, in under 30 minutes. That finding makes deliberate backdoors far less likely, according to the report. It offers an explanation for values whose unexplained origins had long attracted suspicion. Sometimes the mysterious inscription turns out to be a receipt from an ordinary hardware store. For cryptography, provenance matters. Understanding where a value came from is a different task from trusting that it looks sufficiently mathematical in a document. The reported result supplies a concrete origin to investigate rather than another round of speculation about unexplained numbers. It is not a universal certificate for every system using those curves. Security has never been a single locked door; it is a building with maintenance schedules and somebody who keeps borrowing the keys. The comic indignity belongs to the backlog. A technical question can survive generations of faster hardware and increasingly elaborate slides, only to encounter a conversational interface. Researchers still have to check the answer. Mathematics has a strict returns policy: confident presentation does not count as a receipt, however long the question has been waiting.

Satire. Not factual reporting. Read the original reporting from the linked publishers.