WireGuard to be merged with Linux net-next tree and will be available by default in Linux 5.6 – Packt Hub

On December 9, WireGuard announced that its secure VPN tunnel kernel code will soon be included in Linux net-next tree. This indicates, WireGuard will finally reach the mainline kernel with the Linux 5.6 cycle kicking off in late January or early February!, reports Phoronix.

WireGuard is a layer 3 secure networking tunnel made specifically for the kernel, that aims to be much simpler and easier to audit than IPsec.

On December 8, Jason Donenfeld, WireGuards lead developer sent out patches for the net-next v2 WireGuard. David Miller has already pulled in WireGuard as the first new feature in net-next that is destined for Linux 5.6 now that the 5.5 merge window is over, the email thread mentions.

While WireGuard was initiated as a Linux project, its Windows, macOS, BSD, iOS, and Android versions are already available. The reason behind the delay for Linux was that Donenfeld disliked Linuxs built-in cryptographic subsystem citing its API is too complex and difficult.

Donenfeld had plans to introduce a new cryptographic subsystem his own Zinc library. However, this didnt go down well with several developers as they thought that rewriting the cryptographic subsystem was a waste of time. Fortunately for Donenfeld, Linus Torvalds was on his side.

Torvalds stated, Im 1000% with Jason on this. The crypto/model is hard to use, inefficient, and completely pointless when you know what your cipher or hash algorithm is, and your CPU just does it well directly.

Finally, Donenfeld compromised saying, WireGuard will get ported to the existing crypto API. So its probably better that we just fully embrace it, and afterward work evolutionarily to get Zinc into Linux piecemeal. Hence a few Zine elements have been imported into the legacy crypto code in the next Linux 5.5 kernel.

This laid the foundation for WireGuard to finally ship in Linux early next year. WireGuard works by securely encapsulates IP packets over UDP. Its authentication and interface design has more to do with Secure Shell (SSH) than other VPNs. You simply configure the WireGuard interface with your private key and your peers public keys, and youre ready to securely talk.

After the arrival, WireGuard VPN can be expected to become the new standard for Linux VPNs with its key features, namely, tiny code-size, high-speed cryptographic primitives, and in-kernel design. With being super-fast, WireGuard for Linux would be secure too as it supports state-of-the-art cryptography technologies such as the Noise protocol framework, Curve25519, BLAKE2, SipHash24, ChaCha20, Poly1305, and HKD.

Donenfeld in the email thread writes, This is big news and very exciting. Thanks to all the developers, contributors, users, advisers, and mailing list interlocutors who have helped to make this happen. In the coming hours and days, Ill be sending followups on next steps.

ArsTechnica reports, Although highly speculative, its also possible that WireGuard could land in-kernel on Ubuntu 20.04 even without the 5.6 kernelWireGuard founder Jason Donenfeld offered to do the work backporting WireGuard into earlier Ubuntu kernels directly. Donenfeld also stated today that a 1.0 WireGuard release is on the horizon.

To know more about this news in detail, read the official email thread.

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WireGuard to be merged with Linux net-next tree and will be available by default in Linux 5.6 - Packt Hub