You could enable Trezor connect on your website and let your users and admins login fast and secure without passwords using a TREZOR device.
What is TREZOR? TREZOR is a single purpose device which allows you to make secure Bitcoin transactions. With TREZOR, transactions are completely safe even when initiated on a compromised or vulnerable computer. Important, you need a TREZOR device.
You need to modify your theme to allow users log-in with TREZOR connect, please add the following to your theme in the place you want to show the login button:
<?php osc_run_hook('trezor_button'); ?>
You may want to modify your stylesheet to adjust the button to your theme’s style, the login button will be created inside a
Install it from the market: http://market.osclass.org/plugins/security/trezor-connect_242
It’s open source, PR are welcome!: https://github.com/conejoninja/osclass-trezor
Some official information: http://doc.satoshilabs.com/trezor-apps/osclass.html