F-Secure SSH / OpenSSH pubkey compatibilty?

[Bob Proulx]

Peter Stuge wrote:
> Bob Proulx wrote:
> > Should I be able to extract the key somehow in a compatible format?
> 
> I think ssh-keygen from OpenSSH can convert the public key to it's
> prefered format. Try ssh-keygen -i, and/or see the man page.

Excellent!  I can now see the man page says:

     -i      This option will read an unencrypted private (or public) key file
             in SSH2-compatible format and print an OpenSSH compatible private
             (or public) key to stdout.  ssh-keygen also reads the `SECSH
             Public Key File Format'.  This option allows importing keys from
             several commercial SSH implementations.

One thing about openssh's behavior slightly confuses me.  I tried the
reverse path since I have openssh on my machines.

  ssh-keygen -e
  Enter file in which the key is (/home/bob/.ssh/id_rsa): 

I want to convert the id_rsa.pub file and not the id_rsa file.  But
experimenting shows that it does not matter which file I specify.  So
I assume it internally converts from the private key to the public key
and exports the public key.  I am assuming so.  Which seems strange
that it prompts for the private key in that case.  It would be less
confusing if it prompted for the public key.  This is just a general
wishlist type of comment.  I think I am off and running fine.  I
should be able to make things work with this information.

Thank you very much for the pointer!

Bob