![]() WireGuard is designed to be extended by third-party programmes and scripts. ![]() It supports only layer 3 for both IPv4 and IPv6 and can encapsulate v4-in-v6 and vice versa. WireGuard fully supports IPv6, both inside and outside of tunnel. WireGuard uses only UDP, due to the potential disadvantages of TCP-over-TCP. Pre-shared keys are "usually troublesome from a key management perspective and might be more likely stolen", but in the shorter term, if the symmetric key is compromised, the Curve25519 keys still provide more than sufficient protection. This addresses the risk that traffic may be stored until quantum computers are capable of breaking Curve25519, at which point traffic could be decrypted. WireGuard supports pre-shared symmetric key mode, which provides an additional layer of symmetric encryption to mitigate future advances in quantum computing. In May 2019, researchers from INRIA published a machine-checked proof of the WireGuard protocol, produced using the CryptoVerif proof assistant. BLAKE2s for cryptographic hash function.Poly1305 for message authentication codes. ![]() The Linux kernel components are licensed under the GNU General Public License (GPL) version 2 other implementations are under GPLv2 or other free/open-source licenses. In March 2020, the Linux version of the software reached a stable production release and was incorporated into the Linux 5.6 kernel, and backported to earlier Linux kernels in some Linux distributions. The WireGuard protocol passes traffic over UDP. It aims for better performance and more power than IPsec and OpenVPN, two common tunneling protocols. WireGuard is a communication protocol and free and open-source software that implements encrypted virtual private networks (VPNs), and was designed with the goals of ease of use, high speed performance, and low attack surface.
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