Difference between revisions of "GNOME/Keyring"

Revision as of 16:26, 18 March 2014

From GnomeKeyring:

GNOME Keyring is a collection of components in GNOME that store secrets, passwords, keys, certificates and make them available to applications.

Installation

If you're using GNOME, gnome-keyring got installed automatically as a part of it. If you're using a different setup, install gnome-keyring from the official repositories.

Manage using GUI

# pacman -S seahorse

It is possible to leave the GNOME keyring password blank or change it. In seahorse, in the "View" dropdown, select "By Keyring". On the Passwords tab, right click on "Passwords: login" and pick "Change password." Enter the old password and leave empty the new password. You will be warned about using unencrypted storage; continue by pushing "Use Unsafe Storage."

Use Without GNOME, but with a display manager

Both Slim and LightDM ship with /etc/pam.d/slim or /etc/pam.d/lightdm preconfigured to unlock keyring upon login. Users no longer need to modify the file. So the keyring will work out of the box for most cases. If you are using the keyring to unlock your ssh keys though, make sure to have ~/.zshenv

 if [ -n "$DESKTOP_SESSION" ];then
   if [ -n "$GNOME_KEYRING_PID" ]; then
     eval $(gnome-keyring-daemon --start --components=ssh)
     export SSH_AUTH_SOCK
   fi
 fi

Use Without GNOME and a display manager

It is possible to use GNOME Keyring without the rest of the GNOME desktop and a display manager. To do this, add the following to your ~/.xinitrc file:

# Start a D-Bus session
# Source the below file only if you do not already use the default xinitrc skeleton. 
# Otherwise you will end up with multiple dbus sessions.
source /etc/X11/xinit/xinitrc.d/30-dbus
# Start GNOME Keyring
eval $(/usr/bin/gnome-keyring-daemon --start --components=gpg,pkcs11,secrets,ssh)
# You probably need to do this too:
export GNOME_KEYRING_CONTROL GNOME_KEYRING_PID GPG_AGENT_INFO SSH_AUTH_SOCK

See FS#13986 for more info.

If you experience problems retrieving information from the keyring, make sure that the variables "DBUS_SESSION_BUS_ADDRESS" and "DBUS_SESSION_BUS_PID" are exported in the target environment.

Instructions on how to use GNOME Keyring in Xfce are in the SSH Agents section on that page.

SSH Keys

To add your SSH key:

$ ssh-add ~/.ssh/id_dsa
Enter passphrase for /home/mith/.ssh/id_dsa:

To list automatically loaded keys:

$ ssh-add -L

To disable all keys;

$ ssh-add -D

Now when you connect to a server, the key will be found and a dialog will popup asking you for the passphrase. It has an option to automatically unlock the key when you login. If you check this you will not need to enter your passphrase again!

Integration with applications

• Firefox#GNOME_Keyring_integration

Gnome Keyring dialog and SSH

Run in a terminal, the following:

$ gnome-keyring-daemon -s

Output will get a few lines, but in reality we are interested, SSH_AUTH_SOCK, example:

GNOME_KEYRING_C.................
SSH_AUTH_SOCK=/run/user/1000/keyring-XXXXXX/ssh
GPG_AGENT_INF...................

Now you should add to your ~/.bashrc, according to the output of the previous command, for example:

SSH_AUTH_SOCK=`ss -xl | grep -o '/run/user/1000/keyring-.*/ssh'`
[ -z "$SSH_AUTH_SOCK" ] || export SSH_AUTH_SOCK

If you run on your terminal the following:

$ echo $SSH_AUTH_SOCK

will return something like the following:

/run/user/1000/keyring--XXXXXX/ssh

Now when you connect with ssh, gnome-keyring dialog will launch the "entry of the passphrase"

Flushing passphrases

   gnome-keyring-daemon -r -d

will start gnome-keyring-daemon and shut down previously running daemons. Note: if there is no previously running daemons, it'll still start up.

What's a good way of checking whether it's already running?

Gnome Keyring and Git

The Gnome keyring is useful in use with Git when you are pushing over https. First compile the helper

$ cd /usr/share/git/credential/gnome-keyring
# make

Set Git up to use the helper

$ git config --global credential.helper /usr/share/git/credential/gnome-keyring/git-credential-gnome-keyring

Next time you do a git push, you'll be asked to unlock your keyring

Unlock at Startup

GNOME's login manager (gdm) will automatically unlock the keyring once you log in; for others it is not so easy.

For SLiM, see SLiM#SLiM_and_Gnome_Keyring; For KDM see KDM#KDM_and_Gnome-keyring

If you are using automatic login, then you can disable the keyring manager by setting a blank password on the login keyring. Note: your passwords will be stored unencrypted if you do this.

If you use console based login, automatic unlocking of the keyring can be achieved by the following changes in /etc/pam.d/login: Add auth optional pam_gnome_keyring.so at the end of the auth section and session optional pam_gnome_keyring.so auto_start at the end of the session section. The result should look similar to this:

#%PAM-1.0

auth       required     pam_securetty.so
auth       requisite    pam_nologin.so
auth       include      system-local-login
auth       optional     pam_gnome_keyring.so
account    include      system-local-login
session    include      system-local-login
session    optional     pam_gnome_keyring.so        auto_start

Next, add password optional pam_gnome_keyring.so to the end of /etc/pam.d/passwd. The file should look somewhat like this:

#%PAM-1.0
#password	required	pam_cracklib.so difok=2 minlen=8 dcredit=2 ocredit=2 retry=3
#password	required	pam_unix.so sha512 shadow use_authtok
password	required	pam_unix.so sha512 shadow nullok
password	optional	pam_gnome_keyring.so

Useful Tools

gnome-keyring-query

gnome-keyring-query^AUR from the AUR provides a simple command-line tool for querying passwords from the password store of the GNOME Keyring.