ssh-add broken?

[Gordon Messmer]

On 01/08/2016 03:35 PM, Tom Horsley wrote:
> My RSA private key stashed in a file that says
> SSH PRIVATE KEY FILE FORMAT 1.1 has functioned
> forever.

I don't recall seeing any changelog entry for it, but:

    $ ssh-keygen -t rsa1 -f keytmp
    Generating public/private rsa1 key pair.
    Enter passphrase (empty for no passphrase):
    Enter same passphrase again:
    Saving key "keytmp" failed: unknown or unsupported key type


It looks like support for protocol 1 (and, hence, rsa1 keys) has been 
disabled in openssh 7.  You can get some client support with the 
openssh-clients-ssh1.x86_64 package, but that doesn't include agent support.