ssh-keygen: passphrase.

[Markus Friedl]

On Thu, Jan 11, 2001 at 05:01:11PM -0800, Jason Stone wrote:
> 
> > To generate a host key, run "make host-key". Alternately you can do so
> > manually using the following commands:
> > 
> >     ssh-keygen -b 1024 -f /etc/ssh/ssh_host_key -N ""
> >     ssh-keygen -d -f /etc/ssh/ssh_host_dsa_key -N ""
> 
> A zero length passphrase isn't the same as no passphrase.

it is. at least in openssh.