RedoSan-Authenticity Files

🚀 What's New in v1.0-beta.2

🐛 Watermark Fixes

• Fixed ctx.putImageData for wm1/wm3/wm6/wm8_embed — was returning original unmodified image blob
• Fixed AdvancedWatermarkUI contamination that replaced 9 core algorithms
• Consistent embed/extract format across all algorithms
• Secret file input with live capacity display
• Clear "Wrong password" vs "Wrong algorithm" error messages

🔬 Pixel Injection Rewrite

• DCT roundtrip — rewritten with coefficient pair comparison (c[5,2] vs c[4,3], K=15) replacing broken LSB-in-DCT
• Enhanced LSB extract — rewritten to match embed algorithm: same complexity map, channels (3-4), bit positions (1-2), deduplicated repetition code
• Proper extract dispatch — added extractMap mapping all 23 algorithms to their correct extract* methods (no more calling embed functions for extraction)
• ×3 redundancy — majority voting corrects 1 error per triplet (98.6% accuracy)

🖥️ CLI Enhancements

• Interactive menu — 10 numbered options for non-technical users (start.bat / start.sh)
• 6-layer file validation — extension blocklist, magic bytes, content scan, document threats, structure, size limits
• MSYS2 path conversion — handles /f/... paths on Windows
• Auto-detect — try all algorithms on extract when none specified
• Edge cases — directory rejection, clean quoting, default filenames

🎨 Simplified Mode

• Rebuilt pipeline: Upload → Fingerprint → Timestamp → Watermark → Pixel Injection → Done
• 8-step wizard with per-step validation
• Filtered algorithms: DCT-only for watermark (stronger against compression), frequency-only for PI
• Combined one-click download of all results
• Fixed auto-run bug: now waits for user button click before each step

🌐 UI/UX

• Password toggles — embed/extract password fields show/hide based on selected algorithm (professional mode)
• Form cleanup — resetProfessionalForms() clears all inputs/results when switching modes
• Stale results hidden — PI result hidden when switching to extract/analyze tabs
• Consistent textarea styling — match input/select border, padding, focus
• 6-language i18n + RTL support for Arabic
• Floating music player persists across mode switches
• Foldable responsive layout for mobile/tablet

📄 Digital Passport

• PDF/DOCX/EPUB certificate export with QR code
• Owner info validation (Name, Email, Phone, Website)

🔒 Security

• CSP: frame-ancestors, connect-src hardening
• SVG content scan, polyglot detection
• innerHTML sanitization with escapeHtml()
• Runtime file type validation for all file inputs

⚡ Performance

• Deferred non-critical scripts, async CSS
• Yield between heavy hash algorithms to prevent browser freeze
• Fast fingerprint option for simplified mode (3 hashes vs 16)

🧹 Cleanup

• Removed all Python remnants (project is 100% JS)
• Removed C2PA custom WASM (single signer path)
• Removed server.js (GitHub Pages only)
• Removed collaboration guide