Create SECURITY.md

SECURITY.md

@@ -0,0 +1,166 @@
+# Security Policy
+
+## 🛡️ Security Overview
+
+LockBit.chat is built with security-first principles. We take security vulnerabilities seriously and appreciate responsible disclosure from the security community.
+
+## 🔒 Security Features
+
+### Cryptographic Implementation
+- **Key Exchange:** ECDH P-384 (NIST recommended curve)
+- **Encryption:** AES-GCM 256-bit with authenticated encryption
+- **Digital Signatures:** ECDSA P-384 for message authenticity
+- **Perfect Forward Secrecy:** Automatic key rotation every 5 minutes
+- **Non-extractable Keys:** All cryptographic keys are hardware-protected
+- **MITM Protection:** Out-of-band verification codes
+
+### Architecture Security
+- **Zero-trust Model:** No central servers to compromise
+- **P2P Direct:** WebRTC encrypted channels
+- **No Data Persistence:** Messages exist only in memory
+- **Rate Limiting:** Protection against spam and DoS
+- **Replay Protection:** Sequence numbers and message IDs
+
+## 🚨 Supported Versions
+
+| Version | Supported          |
+| ------- | ------------------ |
+| 4.0.x   | ✅ Yes            |
+| < 4.0   | ❌ No             |
+
+## 📋 Reporting a Vulnerability
+
+### 🔴 Critical Vulnerabilities
+For **critical security issues** that could compromise user safety:
+
+**DO NOT** create a public GitHub issue.
+
+**Contact us privately:**
+- 📧 **Email:** security@lockbit.chat (PGP key below)
+- 🔒 **Signal:** +[REDACTED] (ask for Signal number via email)
+- 🔐 **Keybase:** @lockbitchat
+
+### 🟡 Non-Critical Issues
+For general security improvements or non-critical findings:
+- Create a GitHub issue with `[SECURITY]` prefix
+- Use our security issue template
+
+## 📝 Vulnerability Disclosure Process
+
+1. **Report:** Send details to security@lockbit.chat
+2. **Acknowledgment:** We'll respond within 24 hours
+3. **Investigation:** We'll investigate and keep you updated
+4. **Fix:** We'll develop and test a fix
+5. **Disclosure:** Public disclosure after fix is deployed
+6. **Credit:** We'll credit you in our security hall of fame
+
+### Timeline Expectations
+- **Initial Response:** < 24 hours
+- **Status Update:** Every 72 hours
+- **Fix Timeline:** Critical bugs < 7 days, Others < 30 days
+
+## 🏆 Security Hall of Fame
+
+We maintain a hall of fame for security researchers who help improve LockBit.chat:
+
+<!-- Security researchers will be listed here -->
+*Be the first to help secure LockBit.chat!*
+
+## 🔍 Security Audit History
+
+### Independent Audits
+- **Pending:** Professional cryptographic audit (Q2 2025)
+- **Community:** Ongoing peer review by security researchers
+
+### Internal Security Measures
+- **Code Review:** All cryptographic code reviewed by multiple developers
+- **Testing:** Comprehensive security test suite
+- **Dependencies:** Regular security updates for all dependencies
+
+## 🛠️ Security Best Practices for Users
+
+### For Maximum Security:
+1. **Verify Authenticity:** Always verify out-of-band codes
+2. **Use Official Source:** Only use https://lockbit.chat
+3. **Keep Updated:** Use the latest version
+4. **Secure Environment:** Use updated browsers on secure devices
+5. **Lightning Wallets:** Use reputable Lightning wallets (Alby, Zeus, etc.)
+
+### Red Flags:
+- ❌ Codes don't match during verification
+- ❌ Unusual connection behavior
+- ❌ Requests for private keys or seed phrases
+- ❌ Unofficial domains or mirrors
+
+## 🔬 Security Research Guidelines
+
+### Scope
+**In Scope:**
+- ✅ Cryptographic implementation flaws
+- ✅ WebRTC security issues
+- ✅ Authentication bypass
+- ✅ Input validation vulnerabilities
+- ✅ Client-side security issues
+
+**Out of Scope:**
+- ❌ Social engineering attacks
+- ❌ Physical attacks on user devices
+- ❌ DoS attacks on user connections
+- ❌ Issues requiring physical access
+- ❌ Lightning Network protocol issues
+
+### Research Ethics
+- **No Disruption:** Don't interfere with live users
+- **Responsible Disclosure:** Follow our disclosure timeline
+- **No Data Harvesting:** Don't collect user communications
+- **Legal Compliance:** Follow all applicable laws
+
+## 📊 Security Metrics
+
+We track and publish these security metrics:
+- **Response Time:** Average time to acknowledge reports
+- **Fix Time:** Average time to deploy fixes
+- **Vulnerability Count:** Number of reported/fixed issues
+- **Audit Coverage:** Percentage of code under security review
+
+## 🔄 Security Updates
+
+### How We Notify Users:
+- **Critical:** Immediate notification on website
+- **Important:** GitHub releases and social media
+- **Minor:** Regular update cycles
+
+### Auto-Update Policy:
+- **Critical Security Fixes:** Automatic for web version
+- **Feature Updates:** User-controlled
+- **Breaking Changes:** Advance notice with migration guide
+
+## 🤝 Working with Security Researchers
+
+We value the security community and offer:
+- **Recognition:** Public credit and hall of fame listing
+- **Swag:** LockBit.chat merchandise for quality reports
+- **References:** LinkedIn recommendations for exceptional work
+- **Early Access:** Beta access to new security features
+
+## 📚 Security Resources
+
+### Technical Documentation:
+- [Cryptographic Architecture](docs/CRYPTOGRAPHY.md)
+- [P2P Security Model](docs/P2P-SECURITY.md)
+- [Lightning Integration Security](docs/LIGHTNING-SECURITY.md)
+
+### External Resources:
+- [WebRTC Security Guide](https://webrtc-security.github.io/)
+- [Web Crypto API Best Practices](https://www.w3.org/TR/WebCryptoAPI/)
+- [Lightning Network Security](https://lightning.network/lightning-network-paper.pdf)
+
+## 📞 Contact Information
+
+- **Security Team:** security@lockbit.chat
+- **General Contact:** lockbitchat@tutanota.com
+- **GitHub Issues:** https://github.com/lockbitchat/lockbit-chat/issues
+
+---
+
+*This security policy is reviewed and updated quarterly. Last updated: 08/09/2025*