this post was submitted on 20 Dec 2023
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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).
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Why use CBC too? Cha-Cha20-Poly1305 is an AEAD, so both an assymetric plus a symmetric stream cipher.
Just checked my own sshd configs and I don't use CBC in them. I've based the kex/cipher/Mac configs off of cipherlist.eu and the mozilla docs current standards. Guess it pays to never use default configs for sshd if it's ever exposed to the Internet.
Edit: I read it wrong. It's chacha20 OR CBC. I rely heavily on the former with none of the latter.
Ah thanks! Didn't catch that.