search
Get Started
search
WireGuard - Protocol
zoom_in Click to enlarge

WireGuard

language

description WireGuard Overview

Built around a compact design, WireGuard is an open-source VPN protocol and implementation for creating encrypted network tunnels. It uses a fixed set of modern cryptographic components, including Curve25519 and ChaCha20-Poly1305. Its comparatively small codebase makes review more manageable than the larger implementations associated with protocols such as OpenVPN and IPsec, although code size alone does not establish security. WireGuard can connect remote devices to a private network or serve as the tunnel technology inside a commercial VPN service.

Cross-platform implementations make it relevant to system administrators as well as VPN users. Its focused configuration and low overhead distinguish it from protocols with many selectable cryptographic options. Performance depends on hardware and network conditions. It is a building block for secure connectivity, rather than a subscription service that supplies servers or guarantees private browsing on its own.

help WireGuard FAQ

Why is WireGuard often considered easier to audit than OpenVPN or IPsec?

WireGuard has a deliberately small codebase and a focused feature set, while OpenVPN and IPsec rely on much larger stacks. Its design uses modern primitives such as Curve25519, ChaCha20-Poly1305, and BLAKE2s.

Does WireGuard use TCP or UDP?

WireGuard uses UDP rather than TCP. That keeps the protocol lightweight, but networks that block UDP may require a separate transport workaround.

Which operating systems support WireGuard?

WireGuard has official or widely supported implementations for Linux, Windows, macOS, Android, and iOS. Linux support became part of the mainline kernel in version 5.6.

How does WireGuard handle roaming between networks?

A WireGuard peer can update its endpoint when authenticated packets arrive from a new address. This helps a phone move between Wi-Fi and cellular data without renegotiating a traditional VPN session.

Reviews & Comments

Write a Review

rate_review

Be the first to review

Share your thoughts with the community and help others make better decisions.

Save to your list

Save your favorites and follow how their scores change over time.

Save favorites
Track changes
Compare scores

Already have an account? Sign in

Compare Items

See how they stack up against each other

Comparing
VS
Select 1 more item to compare