==> CMS doesn’t provide any function to map a user certificate to a local
identity (VM user ID).

I can’t see how that would be possible since a tcpip connection doesn’t
require vm credentials.

But if I could somehow get info from the authenticated user/client
certificate then I could use that to look them up. example: their email
address. From that I could provide my own mapping to vm userid if needed.



On Mon, Jun 16, 2025 at 05:05 Alan Altmark <[email protected]> wrote:

> Secure socket connections in CMS can be configured to request and validate
> a user certificate.
>
> But that’s not Don’s issue.  CMS doesn’t provide any function to map a
> user certificate to a local identity (VM user ID).
>
> Regards,
> Alan
>
> Alan Altmark
> Senior z/VM Engineer and Consultant
> IBM Infrastructure
> Endicott, NY         USA
>
> > On Jun 15, 2025, at 10:22 AM, Jack Woehr <[email protected]> wrote:
> > The concept of "client certificate" is baked into the modern web.
> > I guess you're saying VM doesn't support this natively?
> >
> >> On 6/15/25 01:05, Rob van der Heij wrote:
> >> It is obviously possible to exchange a certificate once the SSL
> connection
> >> is ready, as part of some home-grown protocol. Your client would need
> hold
> >> that signed certificate and present it to the server. You might be able
> to
> >> reuse some logic from GETSHOPZ where we do digital signature
> verification.
> >> The client would have their signed credentials on file, but it's not
> >> something like a password that could be used for other authentication.
> The
> >> server side would not need to validate a password but only decode the
> >> certificate that you signed.
> >>
> >> Rob
> >>
> >>> On Sun, Jun 15, 2025, 01:49 Donald Russell <[email protected]>
> wrote:
> >>> Thanks Jack,
> >>> No, I don’t want any sort of api/gateway/proxy thing. I was just
> asking if
> >>> some sort of certificate sign-in was practical.
> >>>> On Sat, Jun 14, 2025 at 10:31 Jack Woehr <[email protected]>
> wrote:
> >>>> On 6/14/25 08:02, Donald Russell wrote:
> >>>>> If I have a (z)cms pipe application using tcplisten, how can I make
> >>> sure
> >>>>> the in/outgoing traffic is encrypted?
> >>>> Can you put the connection behind some kind of API gateway?
> >>>> Jack Woehr               # “A learning experience is one of those
> things
> >>>> IBM Champion 2021-2025   #  that says, 'You know that thing you just
> did?
> >>>> http://www.softwoehr.com   #  Don't do that.'” ― Douglas Adams
> >
> > --
> > Jack Woehr               # “A learning experience is one of those things
> > IBM Champion 2021-2025   #  that says, 'You know that thing you just did?
> > http://www.softwoehr.com   #  Don't do that.'” ― Douglas Adams
>

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