WireGuard establishes an encrypted VPN tunnel almost immediately, allowing you to connect to the VPN server of your choice almost instantaneously. Once you're connected, WireGuard runs smoother, faster, and more reliably than other VPN protocols. When combined with our unique VPN Accelerator(new window) technology, you can improve speed by over 400%.
VPN protocols can be quite complicated and require many lines of code, but not WireGuard. In place of OpenVPN, which uses over 400,000 lines of code, WireGuard uses less than 5,000 lines of code. This means a VPN connection that uses WireGuard is faster, uses less battery, and takes less computing power. It also means that WireGuard code is easy to maintain and audit, improving its security.
WireGuard uses the state-of-the-art ChaCha20 encryption cipher to encrypt the VPN tunnel and protect your data. It enables perfect forward secrecy(new window) and is resistant to brute force and related-key attacks.
Proton VPN’s implementation of WireGuard has also been modified to use a double-NAT system(new window), ensuring that it protects your privacy.