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PostPosted: Wed Mar 23, 2016 1:47 pm 
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Joined: Wed Feb 17, 2016 12:14 pm
Posts: 4
I have been having a problem with Yubico Authenticator on OS X 10.11 where the authenticator stops working at some point. The interface just shows "Insert a YubiKey...". If I reboot my laptop then it works again. Strangely, if I open YubiKey NEO Manager then I can see my device, but there are no "Available apps".

Some debug steps:

$ /Applications/Yubico\ Authenticator.app/Contents/MacOS/yubioath-cli
No YubiKey found!

$ /Applications/YubiKey\ PIV\ Manager.app/Contents/MacOS/yubico-piv-tool -v -a status
error: no useable reader found.
Failed to connect to reader.

$ pgrep scdaemon
$


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PostPosted: Thu Mar 24, 2016 8:33 pm 
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Yubico Team
Yubico Team

Joined: Thu Oct 16, 2014 3:44 pm
Posts: 349
Sounds like the behavior early in the El Capitan release cycle (pre-10.11.2) where the old version of libccid was included in OS X and the patch needed to be run (https://github.com/Yubico/ifd-yubico). If you haven't updated to 10.11.2, that would be my recommendation. If you are past that, you may want to try and install the patch anyway. Libccid is essentially a whitelist for smart card devices, and the older versions of libccid (which were on OS X until 10.11.2 was released) didn't include the the U2F/CCID combination modes.

Another small (and less invasive) test you can run is to open the YubiKey NEO Manager, disable U2F mode, then see if the available apps are shown, and the yubico-piv-tool / yubioath commands you were running work.


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PostPosted: Tue Apr 12, 2016 12:46 pm 
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Joined: Wed Feb 17, 2016 12:14 pm
Posts: 4
I applied the patch just in case (10.11.3), as you said, but the issue still crops up. It doesn't help matters to open the YubiKey NEO Manager and disable U2F mode. Do you have any other ideas for debugging this, as it's quite annoying?


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