I am not sure whether this is a problem in the applet or the gpg-agent or something completely different. So I beg pardon if this is the wrong end to ask, but I didn't get any replies on gnupg-users either.
Apparently, after using an authentication key for SSH via gpg-agent, keeping the session open and ejecting the card, the session has to be closed to regain access to the card. Steps to reproduce:
Configure your Yubikey NEO to eject the card on button press:
ykneomgr -M81
Re-plug it afterwards!
Insert the Yubikey and press button to insert the (virtual) card
Use the authentication key stored on the card to log in to a SSH host
Press button to remove the (virtual) card
(or wait if you have a timeout for auto-eject configured)
Press button to insert the (virtual) card again
Do anything that requires the card (e.g. gpg -d):
gpg: public key decryption failed: Conflicting use
In the log of scdaemon, the following line is striking:
scdaemon[7601] lingering application `OPENPGP' in use by reader 0 - can't switch
Now while killing and restarting the gpg-agent makes the applet accessible again as well, I'm under the impression that this should not happen: If I "eject" the card, everything that was opened should be forgotten, shouldn't it? That's why I'm thinking this might be a problem of the applet. If it isn't, welp, I'll have to search somewhere else to complain. ;-)
Hi,
I am not sure whether this is a problem in the applet or the gpg-agent or something completely different. So I beg pardon if this is the wrong end to ask, but I didn't get any replies on gnupg-users either.
Apparently, after using an authentication key for SSH via gpg-agent, keeping the session open and ejecting the card, the session has to be closed to regain access to the card. Steps to reproduce:
gpg: public key decryption failed: Conflicting useIn the log of scdaemon, the following line is striking:
Now while killing and restarting the gpg-agent makes the applet accessible again as well, I'm under the impression that this should not happen: If I "eject" the card, everything that was opened should be forgotten, shouldn't it? That's why I'm thinking this might be a problem of the applet. If it isn't, welp, I'll have to search somewhere else to complain. ;-)