https://bugs.openldap.org/show_bug.cgi?id=9540

--- Comment #6 from Michael Ströder <[email protected]> ---
> (In reply to Michael Ströder from comment #4)
>> And are you and the developers of this LDAP client aware that originally
>> this attribute was meant to carry a signed S/MIME message with empty
>> body to also carry the S/MIME capabilities of a client?
> 
> Yes, we are aware of that, and that's how we've implemented our software.

So you're signing with the user's private key? How? Do you have key escrow?

> But I wasn't aware of this: 
>> [...] After that I never saw a client making correct use of this attribute.
> 
> I was speaking of MS Outlook, but now I've performed a few more tests with
> Thunderbird and Apple Mail, and neither of them did accept the format. Not 
> sure
> if they did not accept the LDAP attribute or didn't know how to make use of 
> it,
> but I admit I'm baffled. 

The Mozilla folks hunked out almost all LDAP features from the ancient
Mozilla suite many moons ago, mostly the ones regarding S/MIME certs.
These features never came back.

Nowadays it's even harder to enroll for S/MIME certs without manual
PKCS#12 import.

> Can it be true that this attribute was never ever implemented properly in any
> of the (widely used) email clients?

Yes, exactly. And that's why this ticket is a bit about trying to ride a
dead horse. Sorry.

Ciao, Michael.

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