https://bugs.kde.org/show_bug.cgi?id=274170

--- Comment #18 from Roland Pallai <da...@magex.hu> ---
(In reply to Roland Pallai from comment #17)
> I still have an issue with kio-sftp if ed25519 type key is *present* in
> known_hosts file for the host. It does not matter if correct rsa/ecdsa keys
> are present - if there is ed25519 type key for the host, verification always
> fails [1] and the hosts' ecdsa key will be appended to known_hosts file
> every time I click 'connect'.
> 
> This is a bad behavior regardless of supported key types - the correct
> behaviour is that not supported key types must be ignored and supported key
> type must be used.
> 
> Should I file a new bug report that draws attention to this bad behavior
> instead of supported key types..?
> 
> [1] The authenticity of host [...] cannot be established. The
> ecdsa-sha2-nistp256 key fingerprint is: [...] Are you sure you want to
> continue connecting?
> 
> Fedora 37
> kf5-kio-core-5.101.0-1.fc37.x86_64
> libssh-0.10.4-2.fc37.x86_64

After some digging I'm sure this is a libssh issue as
ssh_session_is_known_server() returns with SSH_SERVER_NOT_KNOWN when ed25519
key is present in known_hosts. There is nothing to fix in kio-sftp..

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