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two-server-pir

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systemslibrarian / crypto-lab-split-point

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Browser-based two-server PIR from distributed point functions — tree expansion, a 65,536-record private shelf, key-size comparison, collusion, and tampering side by side, with real AES-128-CTR seeds and a 290-byte key against the 8,192-byte full-domain XOR baseline.

cryptography privacy aes-ctr private-information-retrieval crypto-lab distributed-point-functions function-secret-sharing two-server-pir
  • Updated Oct 3, 2026
  • TypeScript

systemslibrarian / crypto-lab-oblivious-shelf

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Browser-based 2-server XOR Private Information Retrieval (Chor et al. 1995) — a patron retrieves any book from a 16-item catalog without the server learning which one was requested. Real IT-PIR arithmetic, step-by-step query walkthrough, and privacy audit panel. Part of crypto-lab.

cryptography xor-secret-sharing private-information-retrieval crypto-lab information-theoretic-security library-privacy cryptography-education two-server-pir patron-privacy chor-1995
  • Updated Oct 8, 2026
  • TypeScript

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