I have an private key in SSH-1 format. When I associate it to my WinSCP site, I get the warning "Private key file... contains key in SSH-1 format. It does not follow your preferred SSH protocol version".
I ignore that and try to connect to an aws ec2 instance (I do not control) over sftp, I get:
No supported authentications methods available (server sent: publickey, gssapi-keyex,gssapi-with-mic) - Unable to use key file... (SSH-1 Private Key)
Do I need to convert my private key file? If so, how do I do that?