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randomness-extraction

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systemslibrarian / crypto-lab-quantum-entropy

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Browser-based QRNG demo — NIST SP 800-90B. Min-entropy is what an optimal guesser faces; Shannon is the marketing number. Slide the detector bias and watch them diverge. Von Neumann fixes bias but not correlation — feed it a correlated stream and watch it output garbage while claiming success. Real Toeplitz extraction over GF(2). No backends.

cryptography entropy min-entropy qrng crypto-lab quantum-random-number-generator randomness-extraction nist-sp-800-90b toeplitz-hashing leftover-hash-lemma
  • Updated Jul 17, 2026
  • TypeScript

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