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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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SSH and GPG: Best Key Generation Options in 2025? (lemm.ee)

submitted 1 week ago by some_boring_username@lemm.ee to c/linux@lemmy.ml

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Hi everybody,

I am a bit out of the loop as far as cryptography algorithms and recommended key sizes are concerned. I have been using the same ssh and gpg keys for a long time.

However, I need to generate a few new keys (both ssh and gpg) that should meet high security standards (private use, but paranoid) and was wondering what options are the most common and recommended ones you are using today?

Thanks a lot to everybody in advance!

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[–] some_boring_username@lemm.ee 1 points 1 week ago (1 children)

For GPG it is the same?

[–] mlaga97@lemmy.mlaga97.space 3 points 6 days ago (1 children)

RSA4096 has a bit of an edge over ed25519 both in effective key size as well as support by things like YubiKeys and other HSMs that is beneficial for GPG but not really helpful for SSH.

[–] some_boring_username@lemm.ee 1 points 6 days ago

Ah, that's a good point, thanks!