Bug 459597 - kio_sftp fails to pick up HostKeyAlgorithms from ~/.ssh/config
Summary: kio_sftp fails to pick up HostKeyAlgorithms from ~/.ssh/config
Status: RESOLVED UPSTREAM
Alias: None
Product: kio-extras
Classification: Frameworks and Libraries
Component: SFTP (show other bugs)
Version: 22.08.1
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-09-24 11:11 UTC by Jan
Modified: 2022-10-01 15:42 UTC (History)
3 users (show)

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Description Jan 2022-09-24 11:11:49 UTC 
kio_sftp does not pick up HostKeyAlgorithms from ssh config file.

STEPS TO REPRODUCE
1. Append "HostKeyAlgorithms ssh-rsa" to /etc/ssh/sshd_config
2. systemctl start sshd
3. Append "Host 127.0.0.1" and "HostKeyAlgorithms +ssh-rsa" to ~/.ssh/config
4. "ssh 127.0.0.1" works and gives me a password prompt
5. "kioclient ls sftp://127.0.0.1" gives this error:
> kioclient: kex error : no match for method server host key algo: server [ssh-rsa], client [rsa-sha2-512,rsa-sha2-256,ssh-ed25519,ecdsa-sha2-nistp521,ecdsa-sha2-nistp384,ecdsa-sha2-nistp256]
Comment 1 Fabian Vogt 2022-10-01 15:42:37 UTC 
The "+" syntax is not implemented in libssh (yet): https://gitlab.com/libssh/libssh-mirror/-/issues/63