I created an SSH key with PuTTY and can use it to successfully login to my droplet.
I tried to change the SSH key passphrase with
ssh-keygen -p Enter file in which the key is (/root/.ssh/id_rsa): /root/.ssh/authorized_keys Failed to load key /root/.ssh/authorized_keys: invalid format
The content of /root/.ssh/authorized_keys file is exactly the same as that generated by PuTTYgen (Public key for pasting into OpenSSH authorized_keys file).
does anyone know why its invalid of am I doing something wrong? or better still can I debug this?
This textbox defaults to using Markdown to format your answer.
You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!
These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.
Hollie's Hub for Good
Working on improving health and education, reducing inequality, and spurring economic growth? We’d like to help.
Get started for free
Enter your email to get $200 in credit for your first 60 days with DigitalOcean.
New accounts only. By submitting your email you agree to our Privacy Policy.
ok thanks. Can I just make sure I’ve got this right …
I created an SSH key with PuTTY, added the public key to my droplet and can use it to successfully login to my droplet.
I was told I could update the passphrase of the key with “ssh-keygen -p” and when I run this command it asks “Enter file in which the key is (/root/.ssh/idrsa)”
when I enter “/root/.ssh/authorized_keys” I get “Failed to load key /root/.ssh/authorized_keys: invalid format”
but the content of /root/.ssh/authorized_keys file is exactly the same as that generated by PuTTYgen (Public key for pasting into OpenSSH authorized_keys file).
so maybe I’ve misunderstood what’s happening?
“When you run the command ssh-keygen -p it regenerates the key” I can’t run ssh-keygen -p becuase I get "“Failed to load key /root/.ssh/authorized_keys: invalid format”
“Check your public and private key, they should be different that what they where before.” If I get it to run, where will it place the new public & private keys?
Hi @helloSquid,
When you run the command ssh-keygen-p it regenerates the key. Check your public and private key, they should be different that what they where before.
In that case, to resolve the issue try to re-add the public ssh key to your ~/.ssh/authorized_keys file.
Regards, KDSys