QR code login through GDM?

Patrick Kobly patrick at kobly.com
Sat Apr 2 23:36:52 UTC 2011

Now...  I could imagine a use for this tech for auth.  With a mobile device, you could create a soft token - where the qr code changes frequently - like with a securid. Maybe even as part of a challenge response scheme - where the challenge is displayed to the mobile device as a qr code and the device displays the response as a qr code. I am unaware of anything existing that does this. But I certainly wouldn't see a static printed qr code as useful for AuthN in just about any scenario.


On 2011-04-02, at 3:02 PM, "Joe Zeff" <joe at zeff.us> wrote:

> On 04/02/2011 01:35 PM, Zoltan Hoppar wrote:
>> Do you think that*maybe*  is there any open source authentication
>> possibility what can be utilised with the card? Like PGP signing for
>> files and mails, perhaps?
> Let me guess: somebody has decided that you *will* use this technology 
> whether it's appropriate or not, right?  To answer your question, it's 
> possible but very unlikely because it's not a good way to do authentication.
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