This commit addresses several issues and implements new features for the Seed Blender based on user feedback.
- **Flexible QR Scanning**: `QRScanner` is now content-agnostic. `SeedBlender` detects QR content type (Plain Text, Krux, SeedPGP) and triggers the appropriate workflow.
- **Per-Row Decryption**: Replaces the global security panel with a per-row password input for encrypted mnemonics, allowing multiple different encrypted seeds to be used.
- **Data Loss Warning**: Implements a confirmation dialog that warns the user if they try to switch tabs with unsaved data in the blender, preventing accidental data loss.
- **Final Mnemonic Actions**: Adds 'Transfer to Backup' and 'Export as QR' buttons to the final mnemonic display, allowing the user to utilize the generated seed.
- **Refactors `SeedBlender` state management** around a `MnemonicEntry` interface for robustness and clarity.
Adds the missing state declarations (`useState`) and handler functions for the dice input and final mixing steps.
The previous implementation included JSX that referenced these variables and functions before they were declared, causing a 'Can't find variable' runtime error. This commit defines the necessary state and logic to make the component fully functional.
Refactors the crypto module loading in `seedblend.ts` to be truly isomorphic and prevent browser runtime errors.
- Replaces the static Node.js `crypto` import with a dynamic `import()` inside a singleton promise (`getCrypto`).
- This ensures Vite does not externalize the module for browser builds, resolving the 'Cannot access \'crypto.webcrypto\' in client code' error.
- The browser will use its native `window.crypto`, while the Node.js test environment dynamically loads the `crypto` module.
- All tests continue to pass, verifying the fix.
Implements a new 'Seed Blender' feature that allows users to securely combine multiple BIP39 mnemonics and enhance them with dice roll entropy.
- Adds a new 'Seed Blender' tab to the main UI.
- Implements a multi-step workflow for inputting mnemonics (manual/QR) and dice rolls.
- Provides live validation and previews for blended seeds and dice-only entropy.
- Includes statistical analysis of dice rolls (chi-square, distribution) and pattern detection for quality assessment.
- The core logic is a 1-to-1 port of the reference Python implementation, using the Web Crypto API for browser compatibility and Node.js for testing.
- A full suite of unit tests ported from the reference implementation ensures correctness and deterministic outputs.
- Update version to v1.4.4
- Add explicit threat model documentation
- Document known limitations prominently
- Include air-gapped usage recommendations
- Polish all documentation for clarity and examples
- Update README, DEVELOPMENT.md, GEMINI.md, RECOVERY_PLAYBOOK.md
- Add src/lib/sessionCrypto.ts with AES-GCM-256 non-exportable session keys
- Integrate into Backup flow: auto-clear plaintext mnemonic after QR generation
- Add Lock/Clear button to destroy session key and clear all state
- Add cleanup useEffect on component unmount
- Add comprehensive GEMINI.md for AI agent onboarding
- Fix TypeScript strict mode errors and unused imports
Tested:
- Session-key encryption working (mnemonic clears after QR gen)
- Lock/Clear functionality verified
- No plaintext secrets in localStorage/sessionStorage
- Production build successful
- Add QRScanner component with camera and image upload
- Add QR code download button with auto-naming (SeedPGP_DATE_TIME.png)
- Split state for backup/restore (separate public/private keys and passwords)
- Improve QR generation settings (margin: 4, errorCorrection: M)
- Fix Safari camera permissions and Continuity Camera support
- Add React timing fix for Html5Qrcode initialization
Features:
- Camera scanning with live preview
- Image file upload scanning
- Automatic SEEDPGP1 validation
- User-friendly error messages
- 512x512px high-quality QR generation
- Implement cv25519 PGP encryption/decryption
- Add Base45 encoding with CRC16 integrity checks
- Create SEEDPGP1 frame format for QR codes
- Support BIP39 passphrase flag indicator
- Add comprehensive test suite with Trezor BIP39 vectors
- 15 passing tests covering all core functionality
