http://www.cardacc.com/cards.htm

To my knowledge there is no information (location, company code, etc)--at 
least I've never specified it in ordering the cards nor in the software 
when we set it up initially.  It's just a number.  I still don't know if 
you can request a range or something...might take some social engineering 
"yeah, company X next door has the 25000 range...can we get 26000 for 
simplicity?"

A EE buddy of mine works at a Web based surveillance camera company who is 
moving into the proximity card area.  When he gets his hands on that stuff 
we were going to take a look at how it operates at the hardware level.  I 
think it's similar to the shoplifting alarm deals you see at wal-mart, 
etc.  Wouldn't that be cool to have a fake plant or something that was 
secretly harvesting proximity card numbers?  Or what if you had a little 
device that would sniff them from a few feet away and then mimic them?

There are some ISO standards (see 14443 on 
http://www.iso.ch/iso/en/CatalogueListPage.CatalogueList?ICS1=35&ICS2=240&ICS3=15) 
but I haven't seen where the NC system complies with that or any other 
standard.  I doubt they are smart cards, but I hope they are using some 
sort of cryptography in the protocol.  I wouldn't be surprise if the cards 
just spit a number out somehow though.

-Mike


At 03:59 PM 1/11/2002 -0600, Magnus Ullberg wrote:
>Thanks, good info.
>
>What I was wondering is whether i could order a card with the same number as
>another card and get access to what that card has access to.
>Or if there is aditional info stored on the card (location, unique company
>code, etc.) to prevent that.
>The cards here were bought in two different batches, one is in the 26000
>range and the other in a much lower range. I dont know if you can specify
>the range when you order them, but if you can i thought that if i could get
>the number of the back of a admin card i could gain  access to the building.
>
>
>-----Original Message-----
>From: Mike Shaw [mailto:[EMAIL PROTECTED]]
>Sent: Friday, January 11, 2002 2:57 PM
>To: Magnus Ullberg; '[EMAIL PROTECTED]'
>Subject: Re: WinPac 2.0
>
>
>Interesting that you should mention this, because I just worked with
>someone who put a system like this in.
>
>  From what I could tell, the 5 digit number on the card is the only
>identifier, although I think it's pretty difficult to replicate these
>cards.  I've wondered about collisions, but I guess until you got upwards
>of 5-10 thousand employees, the chances of a collision/birthday effect are
>low.  It would be interesting to see if you could request a certain number
>from a distributor.
>
>Some further interesting info form the northern site
>(http://www.nciaccessworld.com):
>"The default login and password are: Log In = Admin Password = (leave
>blank) no password If the default login and password are no longer in the
>software please contact Northern Computers technical support so a
>technician can instruct you how to send the database to Northern Computers
>so we can reset it to default for you. "
>       and....
>"The defualt passwords for WIN-PAK are: login = SYSTEM password = startup
>These passwords are case sensitive. "
>
>There are also manuals there if you need them.  The product is based of an
>access database, so I can't imagine that snagging the password would be
>that difficult if it's not a default password.  If the workstation is
>accessible from the network, or it's physically insecure, there may be some
>leverage there too.
>
>-Mike
>
>At 11:22 AM 1/11/2002 -0600, Magnus Ullberg wrote:
> >Anybody have information about Win-Pac 2.0?
> >It is the system used to control doors and manage proximity cards.
> >Each card has a 5 digit number on it. Anybody know if that number is the
> >only thing that identifies the card or if there
> >is some additional info on the card.
> >
> >Thanks,
> >Magnus Ullberg
> >Network Coordinator
> >
> >
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