Standard SSH/SFTP doesn't support X.509 certificate's for authentication,
so I don't understand your reference to a CA.

(z/OS OpenSSH does allow you to put SSH public and private keys in a Key
Ring Certificate, but only the keys are used; the certificate and its
signature are irrelevant.)

Kirk Wolf
Dovetailed Technologies
http://dovetail.com

On Fri, Feb 3, 2017 at 5:48 AM, Jantje. <[email protected]> wrote:

> On Wed, 1 Feb 2017 07:51:23 -0600, Kirk Wolf <[email protected]> wrote:
>
> >> Remember that although the integrity of public keys needs to be guarded,
> >their privacy does not.
> >So it is common to use other secure communications, like publishing the
> >public key on a https: web page.
>
> The issue I have with that is one of trust: In the end, I just have to
> trust whatever the Root Certification Authority is. Or actually, I have to
> trust Microsoft to have correctly verified the identity of that RCA and the
> integrity of the certificate they present, because it is MS that installed
> that certificate in my browser. (s/MS/Google/g for Chrome...)
>
> Cheers,
>
> Jantje.
>
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