Jeff Harris - 2017-11-19

Currently, apps on Chromebooks can not access USB devices directly (see https://bugs.chromium.org/p/chromium/issues/detail?id=480727). Supporting the Yubikey authentication requries a USB interface on the key that is different than the push-button key, I believe. The push button is used for Yubikey's OTP feature not the feature that PasswdSafe uses to combine the Yubikey key with the user password.