Full blueprint-to-implementation gap analysis with comparison to existing solutions (NetAlertX, ntopng, Security Onion). Implements critical security fixes and missing passive discovery.

Analysis Document

• OPTIMIZATION_ANALYSIS.md: 48K character technical analysis covering architecture gaps, backend/frontend improvements, security enhancements, performance optimizations, testing strategy, and prioritized recommendations

Security Fixes

• AES-256-GCM encryption replacing weak Fernet-based credential storage
• Asset-bound encryption prevents credential swapping attacks
• MASTER_ENCRYPTION_KEY environment variable for proper key management
• Configuration validators for SECRET_KEY, DISCOVERY_MODE, ALERT_SENSITIVITY
• Rate limiting utility (token bucket algorithm)
• Configurable CORS origins

class CredentialVault:
    def encrypt(self, plaintext: str, asset_id: str) -> bytes:
        nonce = os.urandom(12)
        aad = asset_id.encode()  # Bind to asset
        return nonce + self._aesgcm.encrypt(nonce, plaintext.encode(), aad)

New Features

• Passive discovery service: ARP table monitoring (/proc/net/arp), DHCP lease parsing (ISC/dnsmasq), MAC vendor lookup with caching
• Background discovery with configurable intervals

Documentation

• README.md: Quick start, architecture diagram, feature matrix
• .env.example: Expanded with all options and security guidance

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.