5437bef9c5
- **Fixed demo mode timing attack vulnerability** - Added strict rate limiting and user fingerprinting - **Eliminated replay attack vectors** - Implemented preimage tracking and expiration validation - **Enhanced key reuse protection** - Added cryptographic validation and session isolation - **Strengthened free tier abuse prevention** - Multi-layer cooldown system with global limits - **Secure user fingerprinting** - Browser-based identification without privacy invasion - **Global session limits** - Maximum 10 concurrent demo sessions across all users - **Per-user daily limits** - 3 demo sessions per 24 hours with smart cooldown - **Session completion tracking** - Prevents rapid reconnection abuse - **Enhanced preimage generation** - Timestamped, versioned, and entropy-validated - **Configurable security layers** - Individual toggle for encryption, obfuscation, and traffic features - **Debug mode controls** - `window.DEBUG_MODE` for detailed logging and diagnostics - **Emergency security disable** - Graceful fallback when advanced features cause issues - **Vulnerability testing support** - Controlled security layer bypass for penetration testing - **Cross-session compatibility** - Works seamlessly with both paid and free sessions - **Real-time UI updates** - Synchronized timer display across all components - **Session state management** - Automatic cleanup and notification system - **Payment integration** - Smooth transition between demo and paid sessions - **Layered security architecture** - 7+ configurable security features with independent controls - **Traffic analysis protection** - Advanced obfuscation with fake traffic and packet padding - **Connection state monitoring** - Enhanced logging for security audit and debugging - **Fallback mechanisms** - Robust error handling with security-first degradation - **Structured security logs** - Detailed audit trail for security events - **Performance monitoring** - Connection state and encryption layer metrics - **Attack detection logging** - Comprehensive tracking of security violations - **Development diagnostics** - Enhanced debugging for faster development cycles - Refactored `PayPerSessionManager` with enhanced security controls - Added `generateUserFingerprint()` with privacy-preserving identification - Implemented `checkDemoSessionLimits()` with multi-tier validation - Enhanced `EnhancedSecureWebRTCManager` with configurable security layers - Added emergency security disable functionality for testing environments - Improved session timer with cross-component synchronization **Breaking Changes:** None - All changes are backward compatible **Security Impact:** High - Eliminates critical vulnerabilities in free tier **Testing Impact:** Significantly improved - New debug modes and security layer controls
securebit-chat
🔒 World's most secure P2P messenger with Lightning Network integration. End-to-end encryption, pay-per-session model, zero data collection. WebRTC direct connections, quantum-resistant roadmap. Privacy-first communication for the Bitcoin age ⚡
🛡️ SecureBit.chat - Enhanced Security Edition 🎯 About the Project SecureBit.chat is a revolutionary P2P messenger that combines:
Military-grade cryptography (ECDH P-384 + AES-GCM 256) Lightning Network payments for sessions Perfect Forward Secrecy with automatic key rotation Zero-trust architecture without servers
✨ Key Features 🔐 Cryptography
ECDH P-384 key exchange AES-GCM 256-bit encryption ECDSA digital signatures Perfect Forward Secrecy Out-of-band verification against MITM attacks
⚡ Lightning Network
Payments in satoshis for sessions WebLN support Instant microtransactions Private payments
🌐 P2P Architecture
Direct connection via WebRTC No central servers Impossible to censor No metadata collection
🚀 Quick Start
Open: https://SecureBit.chat Choose: "Create Channel" or "Join" Pay: for session via Lightning Chat: securely!
🔒 Security Cryptographic Algorithms: 🔑 Key Exchange: ECDH P-384 🔐 Encryption: AES-GCM 256-bit ✍️ Signatures: ECDSA P-384 🔄 PFS: Automatic key rotation 🛡️ MITM Protection: Out-of-band verification Security Audit:
✅ All algorithms verified by cryptographers ✅ Code open for independent audit ✅ Uses only standard WebCrypto APIs ✅ Non-extractable keys
🗺️ Roadmap
v4.0 ✅ Enhanced Security Edition (current) v4.5 🔄 Mobile & Desktop applications v5.0 📅 Quantum-resistant cryptography v5.5 📅 Group chats v6.0 📅 Decentralized network
🛠️ For Developers Technologies:
Frontend: Vanilla JS + React Crypto: Web Crypto API P2P: WebRTC DataChannels Payments: Lightning Network / WebLN
Local Development: bashgit clone https://github.com/SecureBitChat/securebit-chat.git cd securebit-chat python -m http.server 8000
Open http://localhost:8000
🤝 Contributing We welcome community contributions! How to help:
🐛 Report bugs 💡 Suggest ideas 🔍 Security audit 📖 Improve documentation 🌍 Translations
📄 License MIT License with mandatory attribution ⚠️ Disclaimer SecureBit.chat is provided "as is". Use at your own risk. For mission-critical communications, additional security verification is recommended. 📞 Contacts
🌐 Website: https://SecureBit.chat 📧 Email: lockbitchat@tutanota.com