The PAM module pam_fp supports fingerprint authentication for the following applications and actions (although you may not be prompted to swipe your finger in all cases):
Logging in to GDM/KDM or a login shell
Unlocking your screen on the GNOME/KDE desktop
Starting YaST and the YaST modules
Starting an application with root permission: sudo or gnomesu
Changing to a different user identity with su or su - username
NOTE: Fingerprint Reader Devices and Encrypted Home Directories
If you want to use a fingerprint reader device, you must not use
encrypted home directories (see Section 5.0, Managing Users with YaST,
(↑ Start-Up ) for
more information). Otherwise logging in will fail, because decrypting
during login is not possible in combination with an active fingerprint
reader device.