permissionlesstech/bitchat
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v1.2.0
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5 Commits
Author SHA1 Message Date
jack 3070a4d307 Implement Noise Protocol Framework and peer ID rotation for enhanced security and privacy 
This major update replaces the basic encryption with the Noise Protocol Framework
and adds ephemeral peer ID rotation for enhanced privacy.

Key Changes:

Security Infrastructure:
- Implemented Noise Protocol Framework (XX handshake pattern)
- End-to-end encryption with forward secrecy and identity hiding
- Session management with automatic rekey support
- Channel encryption with password-derived keys

Privacy Enhancements:
- Ephemeral peer ID rotation (5-15 minute random intervals)
- Persistent identity through public key fingerprints
- Favorites and verification persist across ID rotations
- Block list based on fingerprints, not ephemeral IDs

Core Components Added:
- NoiseEncryptionService: Main encryption service
- NoiseSession: Individual peer session management
- NoiseChannelEncryption: Password-protected channel support
- SecureIdentityStateManager: Persistent identity storage
- FingerprintView: Visual fingerprint verification UI

Bug Fixes:
- Fixed handshake storm with tie-breaker mechanism
- Fixed missing connect messages during peer rotation
- Fixed delivery ACK compression issues
- Fixed race conditions in message queue
- Fixed nickname resolution for rotated peer IDs

Testing:
- Comprehensive test suite for Noise implementation
- Security validator tests
- Channel encryption tests
- Identity persistence tests
- Rate limiter tests

Documentation:
- BRING_THE_NOISE.md: Technical implementation details
- Updated WHITEPAPER.md: Simplified and focused on core innovations
- Removed temporary debug documentation

The implementation maintains backward compatibility while significantly
improving security and privacy. All existing features (channels, private
messages, favorites, blocking) work seamlessly with the new system.
 2025-07-15 13:15:31 +02:00
jack d5ccf6bc0b Add iOS share extension with rich link previews 
- Implement share extension to receive URLs from other apps
- Display shared links with emoji indicator and rich preview cards
- Add custom compact link preview with image, title, and domain
- Configure app groups for data sharing between extension and main app
- Handle URL detection and parsing in share extension
- Update message formatting to show only emoji for shared links
- Add proper entitlements and activation rules for share extension
 2025-07-08 17:47:53 +02:00
jack b8d930614e Add rich link previews for shared URLs 
- Capture both URL and title when sharing links
- Create LinkPreviewView component with clickable cards
- Support markdown-style links [title](url)
- Auto-detect plain URLs in messages
- Add link metadata fetching on iOS
- Display clean preview cards with title, URL, and description
 2025-07-08 04:32:57 +02:00
jack 244af2197c Fix share extension functionality 
- Add debugging logs to help diagnose sharing issues
- Improve completion handling in share extension
- Check for shared content when app becomes active
- Fix async handling of shared content processing
 2025-07-08 04:26:02 +02:00
jack 7f6a32e350 Add iOS Share Extension support 
- Create share extension to handle shared content from other apps
- Support sharing text, URLs, and prepare for future image support
- Use app groups for data sharing between extension and main app
- Add URL scheme handling for app communication
- Add entitlements for app groups
- Display system message when content is shared
- Update project configuration to include share extension
 2025-07-08 04:18:42 +02:00