GoVPN is a virtual private network daemon, written in Go.

It uses strong passphrase authenticated key agreement protocol with augmented zero-knowledge mutual peers authentication (PAKE DH A-EKE).
It features encrypted authenticated data transport that hides message's length and timestamps, has the Perfect Forward Secrecy property, is resistant to offline dictionary attacks, replay attacks, client's passphrases compromising and dictionary attacks on the server side, has built-in heartbeating, rehandshaking, real-time statistics, the ability to work through UDP, TCP and HTTP proxies, and IPv4/IPv6-compatibility.