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2013-08-16 14:42:19 -0600 asked a question Fingerprint to unlock keyring on login

I have enrolled my fingerprint on a Thinkpad with fingerprint scanner. I can now swipe a finger to sudo, su and login etc.

However, if I swipe to login, a password box pops up anyway because the keyring needs to be unlocked so that NetworkManager can log on to the wifi network. If I login with a password it is reused to unlock the keyring. Therefore it is quicker to login by typing a password once than to swipe and then also type a password.

Is there some way of also unlocking the keyring when I swipe to login? One swipe should log me in and also unlock the keyring.


Thanks to feedback, I guess what's needed is the following:

  • a laptop with a TPM chip (thinkpad, + any modern laptop, due to trusted boot?)
  • the package trousers to talk to the TPM (seems to be installed by default)
  • a pam session module which decrypts your password with TPM and unlocks keyring/ssh keys

Running a command like:

repoquery --whatrequires trousers

...I see a bunch of packages which make use of the TPM chip, none of which look like pam modules. I guess this doesn't exist in Fedora. Has anyone written this software? Does this all look right?

There also needs to be some kind of UI such that when you enrole your fingerprint you are also asked for your password, which is then encrypted with a key stored in the TPM.

All of the above also applies to other auth methods, such as the newly integrated for F20 external keys -- any way you authenticate that does not involve typing in your password immediately involves typing in your password anyway as access to the network, and therefore your keyring is a prerequisite for doing anything useful.

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2012-05-22 16:11:43 -0600 commented answer .iso firmware to usb memory stick

Thanks for the extra info -- I'd vote up but apparently I don't have enough points.

2012-05-22 16:11:13 -0600 commented answer .iso firmware to usb memory stick

dd does not work for the sandisk firmware iso (already tried), but unetbootin did. It was a bit idiosyncratic - requires an already formatted stick, must be mounted etc. but in the end it created a bootable device.

2012-05-22 16:09:35 -0600 marked best answer .iso firmware to usb memory stick

well you can try

dd if=name-XXX.iso of=/dev/sdX

Make sure to use /dev/sdX and not /dev/sdX1.

Or you can try it with unetbootin

It just depend on your iso image the above process (dd'ing) is generic and works with almost all iso images

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2012-05-22 11:28:06 -0600 asked a question .iso firmware to usb memory stick

I need to update the firmware on my Sandisk Ultra SSD drive. The manufacturer provides a bootable ISO image (it has Linus in there). My machine does not have a CD drive. How can I write the .iso image to a USB stick so that it is bootable, using Fedora 17?

2011-11-09 07:02:01 -0600 asked a question whitespace.el change in emacs 23.3 on F16?

Just upgraded from F13 to F16 which means Emacs has been bumped from 23.2 to 23.3.

I have global whitespace mode enabled, and have it highlighting all spaces. This is bearable because I cutomsed the font to be only slightly different than the background.

On this slightly newer emacs however all spaces are being shown in bright white dots, not the subtle grey I have configured.

I've run describe-face whitespace-space and indeed my customisation is being picked up - emacs thinks it should be light grey. I looked at whitespace.el and whitespace-space seems to still be the cutom face used for spaces.

What could have changed here and how do I get back my subtle space hilighting?