Cole Leavitt 8d58a39c3b feat(oprf): add LEAP-style truly unlinkable OPRF with commit-challenge protocol ...

- Implement commit-challenge protocol to prevent fingerprint attack
- Use Learning With Rounding (LWR) instead of reconciliation helpers
- Add mathematical analysis document (docs/LEAP_ANALYSIS.md)
- 8 new tests, 197 total tests passing
- Benchmark: ~108µs (102x faster than OT-based, truly unlinkable)

The key insight: client commits to r BEFORE server sends challenge ρ,
so server cannot predict H(r||ρ) to extract A·s+e fingerprint.

2026-01-07 12:36:44 -07:00

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