https://bugs.kde.org/show_bug.cgi?id=488752
Bug ID: 488752
Summary: Dolphin fails to connect to remote server via SFTP
with ed25519-sk key
Classification: Applications
Product: dolphin
Version: 24.05.0
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: bars: location
Assignee: dolphin-bugs-n...@kde.org
Reporter: tyler.gaut...@linuxdragon.dev
CC: kfm-de...@kde.org
Target Milestone: ---
Created attachment 170646
--> https://bugs.kde.org/attachment.cgi?id=170646&action=edit
Dolphin SFTP logs
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***
SUMMARY
STEPS TO REPRODUCE
1. Create an SSH key pair of ed25519-sk type. You'll need a hardware security
key.
2. Upload public key to remote device.
3. Disable SSH password authentication on the remote device.
4. Insert hardware security key registered with the SSH key pair.
5. Connect to the remote device by entering sftp://remote_device_ip_address in
the location bar of Dolphin. In my case, remote device has the same username as
the client; so there is no need to provide a username.
OBSERVED RESULT
A red banner appears in Dolphin with the text "Authentication failed."
EXPECTED RESULT
Dolphin prompts for the user to confirm user presence. With the key. User
touches the security key, and is logged into the graphical SFTP session.
SOFTWARE/OS VERSIONS
Windows: N/A
macOS: N/A
Linux/KDE Plasma: Fedora Linux 40
(available in About System)
KDE Plasma Version: 6.0.5
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.1
ADDITIONAL INFORMATION
I first reported this issue on the forum:
https://discuss.kde.org/t/sftp-authentication-fails-on-dolphin/7770. (Please
note, at the time, I was still running Plasma 5.) Today, I ran Dolphin again
with the command suggested by luisbocanegra in the second post,
`KIO_SFTP_LOG_VERBOSITY=10 KDE_FORK_SLAVES=1
QT_LOGGING_RULES="log_kio_sftp=true;kf.kio.workers.sftp=true;" dolphin
--new-window sftp://192.168.57.3`. I've attached the output in a text file.
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