Using Token2 FIDO2 keys under Linux

Although many modern versions of Linux have native support for FIDO2 USB keys, quite a lot still do not support them out of the box. The reason is that, by default, USB dongles can't be accessed by users, for security reasons. To allow user access, so-called "udev rules" must be installed.

It is quite easy to fix this: manually, create a file like 70-token2-access.rules under your /etc/udev/rules.d directory with the following content

# this udev file should be used with udev 188 and newer
ACTION!="add|change", GOTO="u2f_end"

KERNEL=="hidraw*", SUBSYSTEM=="hidraw", ATTRS{idVendor}=="096e", ATTRS{idProduct}=="0854", TAG+="uaccess"


Additionally, run the following command after you create this file (it is not necessary to do this again in the future):

sudo udevadm control --reload-rules && sudo udevadm trigger

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