Gnome-keyring is a daemon in the session, similar to ssh-agent, and other applications can use it to store passwords and other sensitive information.

this package contains a pam module that will automatically unlock the keyrings using your login password, making gnome-keyring usage transparent without losing its security benefits.

when installed, this module will automatically be used by gdm and gnome-screensaver to unlock your keyrings when logging in and when unlocking the screen saver.