feat/reusable-fuzzy-extractor #1

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hugooconnor merged 0 commits from refs/pull/1/head into main 2026-02-23 02:01:04 +00:00

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hugooconnor commented 2026-02-23 02:00:50 +00:00 (Migrated from codeberg.org)

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This branch adds a reusable fuzzy extractor for deterministic biometric commitments and deploys the web demo to Cloudflare Pages + Fly.io.

Reusable Fuzzy Extractor

• Core crypto modules: GF(256) finite field arithmetic, Reed-Solomon error correction, and a Juels-Wattenberg fuzzy commitment scheme
  (core/src/crypto/{gf256.rs, reed_solomon.rs, fuzzy_commitment.rs})
• Construction: Code-offset sketch + RS over GF(256) + SHA-256, with default params of t=40 per block (~75 correctable positions out of 512,
  2800-bit entropy)
• Performance (release, Apple Silicon): Gen ~21us, Rep ~93us
• Demo endpoints: POST /api/fuzzy/{enroll,verify,check-unique} with FuzzyCommitment enrollment mode opt-in

Web Demo Deployment

• Backend on Fly.io: Hardened Dockerfile (nightly Rust, non-root user, multi-stage build), environment-based config (PORT, BIND_ADDRESS,
  ALLOWED_ORIGINS), health check at /api/health
• Frontend on Cloudflare Pages: Static SPA deploy with VITE_API_URL pointing to Fly.io backend, wrangler.toml config
• Custom domain: sable.anuna.io via Cloudflare CNAME

Other Improvements

• Relaxed spatial liveness thresholds for 4-quadrant mode
• Show flash pattern used during liveness on authentication screen
• Architecture diagram (ABSM + fuzzy commitment)
• Fixed webcam race condition where stopWebcam() could null the overlay canvas while async face detection was in-flight

Commits

3a8292b fix: relax spatial liveness thresholds for 4-quadrant mode
be12b3a feat: show flash pattern used during liveness on authentication screen
df548b2 feat: add deterministic fuzzy commitment and ABSM architecture diagram
d21629f feat: add fuzzy commitment mode to web demo enrollment UI
23e70c5 feat: add reusable fuzzy extractor for deterministic biometric commitments
e21d509 feat: deploy web demo to Cloudflare Pages + Fly.io

29 files changed, +4731 / -926

This branch adds a reusable fuzzy extractor for deterministic biometric commitments and deploys the web demo to Cloudflare Pages + Fly.io. Reusable Fuzzy Extractor - Core crypto modules: GF(256) finite field arithmetic, Reed-Solomon error correction, and a Juels-Wattenberg fuzzy commitment scheme (core/src/crypto/{gf256.rs, reed_solomon.rs, fuzzy_commitment.rs}) - Construction: Code-offset sketch + RS over GF(256) + SHA-256, with default params of t=40 per block (~75 correctable positions out of 512, 2800-bit entropy) - Performance (release, Apple Silicon): Gen ~21us, Rep ~93us - Demo endpoints: POST /api/fuzzy/{enroll,verify,check-unique} with FuzzyCommitment enrollment mode opt-in Web Demo Deployment - Backend on Fly.io: Hardened Dockerfile (nightly Rust, non-root user, multi-stage build), environment-based config (PORT, BIND_ADDRESS, ALLOWED_ORIGINS), health check at /api/health - Frontend on Cloudflare Pages: Static SPA deploy with VITE_API_URL pointing to Fly.io backend, wrangler.toml config - Custom domain: sable.anuna.io via Cloudflare CNAME Other Improvements - Relaxed spatial liveness thresholds for 4-quadrant mode - Show flash pattern used during liveness on authentication screen - Architecture diagram (ABSM + fuzzy commitment) - Fixed webcam race condition where stopWebcam() could null the overlay canvas while async face detection was in-flight Commits 3a8292b fix: relax spatial liveness thresholds for 4-quadrant mode be12b3a feat: show flash pattern used during liveness on authentication screen df548b2 feat: add deterministic fuzzy commitment and ABSM architecture diagram d21629f feat: add fuzzy commitment mode to web demo enrollment UI 23e70c5 feat: add reusable fuzzy extractor for deterministic biometric commitments e21d509 feat: deploy web demo to Cloudflare Pages + Fly.io 29 files changed, +4731 / -926

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