MacOS 10.13.2 High Sierra has broken SSH again(sachin.ranadive.org)
sachin.ranadive.org
MacOS 10.13.2 High Sierra has broken SSH again
https://sachin.ranadive.org/index.php/2017/12/09/os-x-10-13-2-high-sierra-ssh-1024-invalid-key-length/
2 comments
...and that's a good thing. Short: they deprecated insecure key lengths (<2048)
You can still use alternative SSH clients if you really need to use them
RSA key sizes < 2048 have not been recommended for a long while.