![]() ![]() Run: sudo nano /etc/pam.d/authorization.Now that you have tested the configuration, you can use the steps below to enable the two-factor requirement at the login screen as well as the screensaver screen. Then, insert the YubiKey and confirm you are able to login after entering the correct password. Make sure your YubiKey is not plugged in to the Mac and attempt to login you should not be able to login, even with the correct password. ![]() ![]() To test the configuration, press Command+Ctrl+Q to lock the Mac. Press Ctrl+X, Y, and then Enter to save the file.Add the line below above the account required pam_opendirectory.so line.Īuth required /usr/local/lib/security/pam_yubico.so mode=challenge-response.When prompted, type your password and press Enter.Now the Mac can be configured to require two-factor authentication for the screensaver. Check the Require password box and set it to immediately.This is achieved by enabling the requirement only for the screensaver first if something goes wrong and it does not work you can reboot your Mac and log in normally with just your password.įirst, ensure your Mac is set to require the password immediately after the screensaver starts. Rm /Users/username/.yubico/challenge-7122584īefore enabling the two-factor requirement on your Mac, it is important to test that it is working correctly. Users/username/.yubico/challenge-7122584 If you are reconfiguring the YubiKey with a new challenge-response secret, you need to delete this file before running the ykpamcfg -2 command. This indicates you have already associated this YubiKey with your account. Repeat these steps for any additional YubiKeys you wish to associate with your account.įile /Users/username/.yubico/challenge-7122584 already exists, refusing to overwrite If you selected the Require touch option, touch the metal contact on your YubiKey when it begins flashing.Associating Your YubiKeys with Your Account It is strongly recommended that you configure a backup YubiKey so that you are not locked out of your computer if your YubiKey is lost or broken. Repeat these steps for any additional YubiKeys that you want to use. (Optional) Check the Require touch option if you want to require a touch to the metal contact on the YubiKey to approve challenge-response actions.Click Generate to generate a new secret.Select Challenge-response and click Next.Under Long Touch (Slot 2), click Configure.Insert your YubiKey to an available USB port on your Mac.To configure the YubiKeys, you will need the YubiKey Manager software. Click Close to exit the installation wizard.When prompted, enter your password or use Touch ID to confirm the installation.If you do not enable FDE, it is possible to reboot the Mac into recovery mode and disable the 2FA requirement. Note: Enabling full disk encryption (FDE) with FileVault is highly recommended when using the macOS Login Tool. The macOS Login Tool allows for secure two-factor authentication on Macs using the HMAC-SHA1 challenge-response feature of the YubiKey. For macOS Catalina and newer, please consider following our guide on using YubiKeys as smart cards with macOS, which can be found here. Because this prevents the macOS Login Tool from functioning under macOS Catalina, we will be discontinuing support for the macOS Login Tool. Apple has changed entitlements in authorization and added extra protections to the login process, which prevents it from communicating with USB devices (including the YubiKey). Post your question or problem on our message board.Due to developments outside of Yubico’s control, this tool cannot function on macOS Catalina (10.15) and newer. In that case, the wait time is set to 0 (zero) and cannot be customized so long as you have fewer access rights. If you are not yourself an Administrator on this computer, you will not be able to change this setting, and will have to contact someone with more access rights.Īdministrators are also able to disable the screensaver for all users. On Windows, it is possible for users with administrative access rights to enter a single screensaver timeout setting (in seconds rather than minutes) for all other users of that computer or network. An administrator has defined a wait time for all users If not, keep reading for another possible reason. Once you have done so, the "Wait" box should activate. To be able to set the wait time for a screensaver, you first need to select one in the list of screensavers within the Screen Saver Settings panel. ![]()
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