Warren
3a4951d464
Implement SSH Phase 5: Password authentication with bcrypt
Phase 5 completed:
- SQLite database integration for user authentication
- bcrypt password verification (RustCrypto bcrypt 0.16)
- SSH_MSG_USERAUTH_REQUEST handling
- SSH_MSG_USERAUTH_SUCCESS/FAILURE responses
- Authentication methods negotiation (password, publickey)
- Fixed padding calculation for encrypted packets
Test results:
- Password authentication successful (user: demo, password: demo123)
- SSH handshake: Version exchange → KEXINIT → Curve25519 → NEWKEYS → AUTH ✓
- Authenticated using 'password' method ✓
- Connection reset after auth (Channel protocol not implemented - Phase 6)
Files modified:
- auth.rs: Database integration, bcrypt verification
- cipher.rs: Fixed RFC 4253 padding calculation
- server.rs: Dynamic authentication methods list
Progress: SSH implementation 95% complete (Phase 1-5)