Sergey Biryukov 01d22d18e6 Filesystem API: Include the ssh-ed25519 public key signature algorithm as an alternative to ssh-rsa.
The `ssh-rsa` signature algorithm is disabled by default as of OpenSSH 8.8, which breaks SSH2 uploads in WordPress on modern systems. `ssh-ed25519` is one of the suggested alternatives, supported since OpenSSH 6.5.

References:
* [https://www.openssh.com/txt/release-8.2 OpenSSH 8.2 release notes]
* [https://www.openssh.com/txt/release-8.7 OpenSSH 8.7 release notes]
* [https://www.openssh.com/txt/release-8.8 OpenSSH 8.8 release notes]

Follow-up to [8865].

Props richybkreckel, dd32.
Fixes #52409.
Built from https://develop.svn.wordpress.org/trunk@52807


git-svn-id: http://core.svn.wordpress.org/trunk@52396 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2022-02-27 15:02:04 +00:00
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