WireGuard, a relative newcomer to VPN protocols, is intended to replace old VPN protocols with a simple, fast, and safe protocol. Unlike legacy VPNs, WireGuard is built around the Noise Protocol Framework and relies on a select few, modern, cryptographic primitives.
Simplicity is everything. WireGuard consists of only 4,000 lines of code – far less than the 400,000 lines found in OpenVPN. Less code means less complexity and greater verifiability by the development community. Complexity increases latency, negotiation, it decreases speed and drains battery life.
The simplicity of the protocol means it is more robust than old, unmaintainable codebases, and can also be implemented relatively quickly. Despite its relatively young age, WireGuard is quickly becoming the “go-to” protocol.
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