The specs might just want to say that it just expects the wildcard to be broken, not that it expects an empty record.

Than put something into the TXT - it does not matter and is only used to break the wildcard.

Hartmut, please read Andre's mail again - we can't do anything about it if Outlook considers an extra delay of 20ms as too slow.

See the release info over at T5052 which notes the problem. See T5140 for details and update to 2.2.25.

Andre,

thats wrong.
if i disable the Addin, the effect is gone.

Best regards
Hartmut

Von: aheinecke (Andre Heinecke) <noreply@dev.gnupg.org>
Gesendet: Freitag, 11. Dezember 2020 08:35
An: hartmut.jacobi@hotmail.de
Betreff: [Task] [Closed] T5176: Problem with Office 365 GnuPG Outlook addin, Outlook reports not to be primary Mail client

aheinecke closed this task as "Invalid".
aheinecke added a comment.

Hi, you can change the default mail app under systemsettings in windwos 10, this has nothing to do with GpgOL, and the delayed start report, I can't do anything about. Outlook just shows this for any COM Addin to shift the blame, seriously we took 0,02s or 20ms on your system for our initialization. That is reasonably fast.

TASK DETAIL
https://dev.gnupg.org/T5176

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Hi, you can change the default mail app under systemsettings in windwos 10, this has nothing to do with GpgOL, and the delayed start report, I can't do anything about. Outlook just shows this for any COM Addin to shift the blame, seriously we took 0,02s or 20ms on your system for our initialization. That is reasonably fast.

Reading the code again, I think that some configuration of NKS card doesn't work well, when it has no certificates but keys (e.g. IDLM config).
I'm going to fix do_readkey as well (the approach #1).

Cloudflare doesn't seem to allow empty DNS TXT records...

From the specs:

There's a wildcard CNAME, it's not _really_ configured. It's not a good assumption that a CNAME == configured and it doesn't have a reasonable fallback, IMHO.

If you configure the subdomain in the DNS this will be used. Thus get a cert for it. The old method should not be used and thus if the openpgpkey subdomain exists gpg concludes that the admin is aware of the new scheme.

Hm, I don't want to remove the CNAME just so that GPG WKD would work, is there a way to fix this? Is there a good reason why after "Advanced"/subdomain lookup it doesn't try "direct"?

Oh, it's using the openpgpkey subdomain because of the CNAME but that's not actually being served by the server.

Nope, of course SNI is used. You problem is a different one. For example no root certificate, a server configured to allow only TLS 1.3, or a not supported algorithm. Decent versions of GnuPG print some hints if run with -v. BTW, an easier way to test is to use "gpg --locate-external-key" which basically does the same you did.

Should work now with GnuPG master (from today). Probably also works with GnuPG 2.2.18.

In T5150#140039, @gniibe wrote:

With little (mostly no) knowledge of NKS card, I think I fixed this issue.

With my Yubikey NEO, when I use OTP (touching the button to generate OTP output as key input), I observed "card eject" event:

2020-12-10 11:23:05 scdaemon[7254] DBG: ccid-driver: CCID: interrupt callback 0 (2)
2020-12-10 11:23:05 scdaemon[7254] DBG: ccid-driver: CCID: NotifySlotChange: 02
2020-12-10 11:23:05 scdaemon[7254] DBG: ccid-driver: CCID: card removed
2020-12-10 11:23:05 scdaemon[7254] DBG: enter: apdu_get_status: slot=0 hang=0
2020-12-10 11:23:05 scdaemon[7254] DBG: leave: apdu_get_status => sw=0x1000c status=0
2020-12-10 11:23:05 scdaemon[7254] DBG: Removal of a card: 0

Thanks a lot for your time to locate the problem. I took the approach of #2.

I have reproduced the bug

A backtrace with gdb from migw-w64 results in

I did a fresh install of Gpg4win 3.1.14 and imported my standard pubkey, by using

gpg --locate-key bernhard@intevation.de

on the command line.

This works now. Thanks.

I'm not sure why I thought that it would work now. With current master I get

$ gpg-connect-agent "SCD READKEY --info-only -- 39400430E38BB96F105B740A7119FE113578B59D" /bye
ERR 100663414 Invalid ID <SCD>

Sorry, I can' reproduce thus. What kind of key is causing the crash?

I am affected by the same bug and the patch seems to work for me. Login via gpg-agent with ssh support is possible again, which wasn't before, since some openssh and/or gnupg update. Not sure.

Should work now with GnuPG master (because PIV is not supported by 2.2).

Should work now with GnuPG 2.2.18+, but so far only tested with master.

Fixed.

I checked the development log for the addition of:

libusb_clear_halt (handle->idev, handle->ep_intr);