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WireGuard

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description WireGuard Overview

WireGuard is a revolutionary VPN protocol designed for simplicity, high performance, and extreme security. Unlike legacy protocols like IPsec or OpenVPN, which contain hundreds of thousands of lines of code, WireGuard is remarkably compact, making it easy to audit for vulnerabilities. It uses state-of-the-art cryptography, including Curve25519 and ChaCha20-Poly1305. Its performance is significantly faster than traditional VPNs, providing near-wire-speed throughput.

It has become the industry standard for modern VPN services, offering a robust and lightweight solution for secure remote access and private browsing.

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.

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