[time-nuts] webcam app to watch for and time stamp changes

Jim Lux jimlux at earthlink.net
Sun Mar 3 12:26:13 EST 2013

On 3/3/13 8:52 AM, cfo wrote:
> On Sat, 02 Mar 2013 11:33:02 -0800, Jim Lux wrote:
>> I am interested in the timing behavior of my RSA fob, which changes
>> every 60 seconds.  Since I'm not about to open it up and probe inside, I
>> was wondering if someone had a clever way, say using a USB web cam, to
>> log the changes over a 48 hour period.  You'd point the web cam at the
>> fob, and it would log the time when the display changes Or one might
>> even be able to look at the blinking 1 pps indicator using a light and
>> photocell or something..
> Isn't this "Just what the doctor ordered"
> http://smallhacks.wordpress.com/2012/11/11/reading-codes-from-rsa-
> secureid-token/

Yes, basically..

Of course, installing your token permanently (as shown in the article) 
kind of defeats the purpose, since the idea of two factor authentication 
is "something you know" (the PIN/password) and "something you *have*" 
(the token).  If you don't keep physical possession of the token, that's 
a big problem.

In fact, the article is all about getting around having the human 
there.. the PIN is entered by his software and his software reads the 
token.  So anyone who has access to his computer has access to his 
identity.  And I'll bet his computer is connected to the internet, so 
that means *everyone* has access to whatever is secured by his token. 
(after all he is doing it so he can get access to his work VPN).

Probably a good reason not to use NetArt Group s.r.o. in the Czech 
republic (his employer) if you care about security.

I suppose, though, there are places that are more casual.  After all, 
there's that guy who outsourced his work to China and mailed the guy in 
China his token.

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