Hi, Just a quick status report to say that the the Yubico PIV tool now has a set-ccc command (along with the existing set-chuid command) so that Smartcard Services will work with the Yubikey NEO and 4. See https://github.com/Yubico/yubico-piv-tool There is no need to modify tokend. Thanks, David L

It would be nice if SmartCardServices tokend could work with a card that doesn't have a CCC object in it.

In my experience, NEO (a) does not have CCC, and (b) does not perform SELECT command properly.

One workaround I found for another tokend to work with NEO correctly was to generate a CCC object and write it to NEO using piv-tool from OpenSC package.