Re: Key management using a USB key

2005-04-20 Thread Russell Coker
On Tuesday 08 March 2005 10:46, David Härdeman <[EMAIL PROTECTED]> wrote: > o Especially on laptops, it might be interesting to also encrypt all of > /home and/or other parts of the harddrive to make the data unusuable > without the USB key. But how to integrate this with the other > requirem

Re: Key management using a USB key

2005-03-17 Thread Mowgli
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi, Am Do den 17. Mär 2005 um 14:13 schriebst Du: > > o Especially on laptops, it might be interesting to also encrypt all of > > /home and/or other parts of the harddrive to make the data unusuable > > without the USB key. But how to integrate this w

Re: Key management using a USB key

2005-03-16 Thread Thomas Viehmann
Eric Dorland wrote: An arguably more secure approach would be to use a cryptographic smart card in a usb key form factor with OpenSC. Unfortunately integration with ssh and gpg is lacking at this point, but I hope to be able to do something about that post-sarge (ssh has support but doesn't compile

Re: Key management using a USB key

2005-03-15 Thread sean finney
hi, On Wed, Mar 16, 2005 at 01:39:44AM +0100, Matthias Urlichs wrote: > > also, what about the library issue? > > > Which library issue? AFAIK the packages co-exist nicely. istr trying to build gpg-agent from the upstream source but the configure script would fail because i didn't have the appro

Re: Key management using a USB key

2005-03-15 Thread Matthias Urlichs
Hi, sean finney: > > That has been agreed to. > > i didn't see anything to that regard in the wnpp bug... do you have > a pointer to somewhere that i could verify that? I talked with elmo about it in Barcelona, last December. He basically said that, as long as it's understood that he gets the p

Re: Key management using a USB key

2005-03-15 Thread sean finney
hi matthias, On Tue, Mar 15, 2005 at 08:02:34AM +0100, Matthias Urlichs wrote: > > - when gnupg releases an official version 2, james uploads a new gnupg > > that replaces the previous source package (or would it have to have > > the same name?), and generates all binary packages. > > > That

Re: Key management using a USB key

2005-03-14 Thread Matthias Urlichs
Hi, sean finney wrote: > - create a source package gnupg2 exists > - gnupg2 *only* produces package(s?) for the peripheral binar(y|ies) a binary for gnupg2 exists too, with a warning that it's not for public consumption > - when gnupg releases an official version 2, james uploads a new gnupg >

Re: Key management using a USB key

2005-03-14 Thread sean finney
hi, On Mon, Mar 14, 2005 at 02:19:46PM +0100, Erik Schanze wrote: > Your fingers lie on a bloody wound. ;-) > > There was ITP #187548 for newpg, but was closed last summer. aha. > Please reopen it and make a package for newpg to make KMail-Users happy. > If you have not enough time, would you s

Re: Key management using a USB key

2005-03-14 Thread Norbert Tretkowski
* David Härdeman wrote: [...] > o gpg-agent support in the same manner as ssh-agent would be neat. I > understand that this requires gnupg 2.0 though. Should be no problem with quintuple-agent. Norbert -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? C

Re: Key management using a USB key

2005-03-14 Thread Erik Schanze
Hi Sean! sean finney <[EMAIL PROTECTED]>: > On Mon, Mar 14, 2005 at 09:30:54AM +0100, Matthias Urlichs wrote: > > > o gpg-agent support in the same manner as ssh-agent would be neat. I > > > understand that this requires gnupg 2.0 though. > > > > While gpg-agent is built from the gnupg 2.0 sourc

Re: Key management using a USB key

2005-03-14 Thread Matthias Urlichs
Hi, sean finney: > On Mon, Mar 14, 2005 at 09:30:54AM +0100, Matthias Urlichs wrote: > > > o gpg-agent support in the same manner as ssh-agent would be neat. I > > > understand that this requires gnupg 2.0 though. > > > > While gpg-agent is built from the gnupg 2.0 sources (a development > > s

Re: Key management using a USB key

2005-03-14 Thread sean finney
On Mon, Mar 14, 2005 at 09:30:54AM +0100, Matthias Urlichs wrote: > > o gpg-agent support in the same manner as ssh-agent would be neat. I > > understand that this requires gnupg 2.0 though. > > While gpg-agent is built from the gnupg 2.0 sources (a development > snapshot of which is currently

Re: Key management using a USB key

2005-03-14 Thread Matthias Urlichs
Hi, David HÃrdeman wrote: > o gpg-agent support in the same manner as ssh-agent would be neat. I > understand that this requires gnupg 2.0 though. While gpg-agent is built from the gnupg 2.0 sources (a development snapshot of which is currently sitting in the NEW queue ...), the agent itself i

Re: Key management using a USB key

2005-03-09 Thread David Härdeman
On Tue, Mar 08, 2005 at 12:46:46AM +0100, David Härdeman wrote: I've been meaning for some time to get a USB key to manage private keys (such as gpg, ssh, etc), but it's not until recently that I tried to sit down and sketch on how to implement it (filesystem layout, functionality, which parts

Re: Key management using a USB key

2005-03-09 Thread Ben Hill
On Wed, 2005-03-09 at 11:34 +0100, Tollef Fog Heen wrote: > You could partition the usb key and have a small partition for GPG/SSH > keys and the rest for normal data transfers and stuff. I was going to do the same, but picked up a rediculously cheap tiny USB key, and only use it for this purpose.

Re: Key management using a USB key

2005-03-09 Thread Tollef Fog Heen
* David Pashley | Ideally I want to keep the disk formatted as vfat so it is usable on | other operating systems and use an ext2 loopback filesystem. Getting the | system to mount that is the hard part. You could partition the usb key and have a small partition for GPG/SSH keys and the rest for

Re: Key management using a USB key

2005-03-09 Thread Andreas Tille
On Tue, 8 Mar 2005, sean finney wrote: you could easily extend the script i wrote to unencrypt/loop-mount a filesystem-in-a-file without too much effort. prod me enough and i might do it myself. Prodding. :) Moreover I'd suggest to send the result of it as patch to the gpg package for inclusion in

Re: Key management using a USB key

2005-03-09 Thread David Schmitt
On Wednesday 09 March 2005 01:42, David Härdeman wrote: > So the revocation could even be stored in cleartext on the usb key, > unless I'm mistaken? Depending on the strength of the crypto/passphrase protecting your key, this could lead at least to a DOS if the revocation is publicised without c

Re: Key management using a USB key

2005-03-08 Thread sean finney
hello, On Wed, Mar 09, 2005 at 01:38:22AM +0100, David Härdeman wrote: > o when the usb key is inserted, the user is prompted for a password to > the encrypted loopback file which is then mounted, the ssh keys within > are fed to ssh agent, and the file is unmounted again. you could easily ext

Re: Key management using a USB key

2005-03-08 Thread David Härdeman
On Tue, Mar 08, 2005 at 07:29:20AM -0600, Steve Greenland wrote: On 07-Mar-05, 17:46 (CST), David H?rdeman <[EMAIL PROTECTED]> wrote: o Revocation certificates for the gpg keys, are there arguments for/against storing them on the usb key? While you might store the revocation certificate (RC) on

Re: Key management using a USB key

2005-03-08 Thread David Härdeman
On Tue, Mar 08, 2005 at 02:30:06AM -0500, sean finney wrote: well, me wanting to do things the "right way" it ended up being a pretty long script and i didn't think the list would appreciate random shell scripts flying around. but, i'll go ahead and put it online: http://www.seanius.net/linux/keyl

Re: Key management using a USB key

2005-03-08 Thread Ben Hill
On Tue, 2005-03-08 at 15:41 +, David Pashley wrote: > Ideally I want to keep the disk formatted as vfat so it is usable on > other operating systems and use an ext2 loopback filesystem. Getting > the > system to mount that is the hard part. I initially had my stuff stored on a VFAT partition,

Re: Key management using a USB key

2005-03-08 Thread David Pashley
On Mar 08, 2005 at 14:58, Ben Hill praised the llamas by saying: > On Tue, 2005-03-08 at 00:46 +0100, David Härdeman wrote: > > first of all, this might be slightly off-topic for the debian-devel > > list, but I've got the impression that it's already been solved by some > > DD's and might prove

Re: Key management using a USB key

2005-03-08 Thread Steve McIntyre
Wouter wrote: >Op di, 08-03-2005 te 14:58 +, schreef Ben Hill: >> >> So, when I stick the dongle into the USB slot, the drive is >> automatically mounted, and the symlinks point to my real key >> directories. >> >> When the key is out of the machine, my keys are safe offline. > >This is also

Re: Key management using a USB key

2005-03-08 Thread Ben Hill
On Tue, 2005-03-08 at 16:07 +0100, Wouter Verhelst wrote: > > The only difference is that, rather than symlinking ~/.gnupg, I > symlink > ~/.gnupg/secring.gpg; that way, I can mount the USB key read-only, > which > allows me to safely remove it while still mounted; my trustdb and > public > keyrin

Re: Key management using a USB key

2005-03-08 Thread Jesus Climent
On Tue, Mar 08, 2005 at 04:07:02PM +0100, Wouter Verhelst wrote: > > The only difference is that, rather than symlinking ~/.gnupg, I symlink > ~/.gnupg/secring.gpg; that way, I can mount the USB key read-only, which > allows me to safely remove it while still mounted; my trustdb and public > keyri

Re: Key management using a USB key

2005-03-08 Thread Jesus Climent
On Tue, Mar 08, 2005 at 02:58:41PM +, Ben Hill wrote: > > In my home directory I create a symlink for /media/usbkey/ssh -> ~/.ssh > and /media/usbkey/gnupg -> ~/.gnupg. One can also use the --home flag to gpg. -- Jesus Climent info:www.pumuki.org Unix Sy

Re: Key management using a USB key

2005-03-08 Thread Wouter Verhelst
Op di, 08-03-2005 te 14:58 +, schreef Ben Hill: > On Tue, 2005-03-08 at 00:46 +0100, David HÃrdeman wrote: > > first of all, this might be slightly off-topic for the debian-devel > > list, but I've got the impression that it's already been solved by some > > DD's and might prove interesting t

Re: Key management using a USB key

2005-03-08 Thread Ben Hill
On Tue, 2005-03-08 at 14:58 +, Ben Hill wrote: > > In my home directory I create a symlink for /media/usbkey/ssh -> > ~/.ssh > and /media/usbkey/gnupg -> ~/.gnupg. It has to be said, this method isn't the most secure method by any means, and I'm interested to hear other's approaches. Cheers,

Re: Key management using a USB key

2005-03-08 Thread Ben Hill
On Tue, 2005-03-08 at 00:46 +0100, David Härdeman wrote: > first of all, this might be slightly off-topic for the debian-devel > list, but I've got the impression that it's already been solved by some > DD's and might prove interesting to others (including non-DD's such as > me). I use a very s

Re: Key management using a USB key

2005-03-08 Thread Steve Greenland
On 07-Mar-05, 17:46 (CST), David H?rdeman <[EMAIL PROTECTED]> wrote: > o Revocation certificates for the gpg keys, are there arguments > for/against storing them on the usb key? While you might store the revocation certificate (RC) on *a* key, I certainly wouldn't store it on *the* key. If yo

Re: Key management using a USB key

2005-03-07 Thread sean finney
hi, On Mon, Mar 07, 2005 at 09:52:31PM -0800, Steve Langasek wrote: > > i have a usb/hotplug/ssh-add script that loads an ssh key off of a usb > > stick, and removes it when the usb stick is removed. if you're > > interested i can send you a copy off-list. > > Any reason not to post it on-list?

Re: Key management using a USB key

2005-03-07 Thread Christian Perrier
> Any reason not to post it on-list? I was hoping to improve the > security/usability of my own setup based on the best practices offered up in > reply to this thread. Yep. Seconded. This is exactly what I was thinking while seeing this thread : let's watch it and learn how my fellow DD and Deb

Re: Key management using a USB key

2005-03-07 Thread Marc Haber
On Mon, 7 Mar 2005 21:52:31 -0800, Steve Langasek <[EMAIL PROTECTED]> wrote: >On Tue, Mar 08, 2005 at 12:46:59AM -0500, sean finney wrote: >> On Tue, Mar 08, 2005 at 12:46:46AM +0100, David Härdeman wrote: >> > o In order to minimize the exposure of the key, it might be wise to >> > mount the dri

Re: Key management using a USB key

2005-03-07 Thread Eric Dorland
An arguably more secure approach would be to use a cryptographic smart card in a usb key form factor with OpenSC. Unfortunately integration with ssh and gpg is lacking at this point, but I hope to be able to do something about that post-sarge (ssh has support but doesn't compile it in, and gnupg su

Re: Key management using a USB key

2005-03-07 Thread Steve Langasek
On Tue, Mar 08, 2005 at 12:46:59AM -0500, sean finney wrote: > On Tue, Mar 08, 2005 at 12:46:46AM +0100, David Härdeman wrote: > > o In order to minimize the exposure of the key, it might be wise to > > mount the drive, load the keys (ssh,gpg) into the memory of the > > appropriate agents and t

Re: Key management using a USB key

2005-03-07 Thread sean finney
On Tue, Mar 08, 2005 at 12:46:46AM +0100, David Härdeman wrote: > o In order to minimize the exposure of the key, it might be wise to > mount the drive, load the keys (ssh,gpg) into the memory of the > appropriate agents and then unmount the drive. On the other hand, does > this actually prov