Пакет pam_usb: Информация

pam_usb is a PAM module that enables authentication using a USB storage
device through DSA private/public keys. It can also work with floppy
disks, CD-ROMs, or any kind of mountable device. It supports multiple
users for the same device, multiple hostnames for the same user, a
serial number access list, and private key encryption. It includes the
usbhotplug tool which by default will run xlock when you remove the USB
device and kill it as soon as the same device is plugged back in.