Crux is a modern VPN built on WireGuard, but with quantum safe key mechanisms as the standard. It is designed to provide fast, secure, and resilient connectivity across mobile, desktop, and server environments. It offers a streamlined way to create encrypted tunnels that protect your network traffic without the complexity of legacy VPNs. Whether you're accessing internal services, securing public Wi-Fi connections, or linking distributed systems, Crux delivers a reliable, high-performance experience.

Unlike traditional VPNs, Crux is designed with long-term cryptographic durability in mind. It incorporates a quantum-safe key rotation mechanism that continuously refreshes session keys using pre-distributed symmetric material. This approach removes reliance on static secrets or long-lived key pairs, reducing the window of exposure in case of compromise and providing protection against future quantum adversaries. The system ensures that every connection benefits from ephemeral, short-lived keys that are cryptographically unlinkable to past or future sessions.

Crux maintains compatibility with the WireGuard protocol and ecosystem, making it easy to integrate into existing setups while providing enhanced security guarantees. It handles mobility and network changes automatically, keeping sessions alive across IP handoffs, NATs, and unreliable links. Crux does not rely on centralized infrastructure or external identity systems, and it does not collect telemetry or traffic data.

Built for privacy-conscious users and modern infrastructure, Crux is suitable for both individuals and teams that need secure remote access, private networking, or encrypted communications across hybrid deployments. With strong defaults and minimal configuration, Crux makes robust, future-ready security accessible by design.