RSA SSH keys work, but ED25519 SSH keys do not.

[tmarfil]

For BIG-IP Virtual Edition appliances installed on GCP, RSA SSH keys work, but ED25519 SSH keys do not.

RSA key works
ssh-keygen -l -f ~/.ssh/id_rsa
3072 SHA256:... username (RSA)

ED25519 key does not
ssh-keygen -l -f ~/.ssh/id_ed25519
256 SHA256:... username (ED25519)

BIG-IP VE Version Tested:

show sys version

Sys::Version
Main Package
Product BIG-IP
Version 17.1.1
Build 0.2.6
Edition Engineering Hotfix
Date Wed Nov 1 10:47:02 PDT 2023
FIPS Module Cryptographic Module for BIG-IP

Hotfix List
ID1117229-5 ID1240121-5 ID1361169-1 ID1381357-1

I confirmed both of the SSH keys tested (RSA and ED25519) work with the standard Ubuntu 22.04 GCP instance.