[dorkbotdc-blabber] SmarTrip Apparel

Andrew Q Righter andrew at i11industries.com
Tue Jul 22 17:03:18 EDT 2008


Thanks Tom, going to parse through the data tonight. I'm very familiar with
the ISO 14443 standard proximity cards but wasn't aware what modulation
scheme's they were using, good stuff. I should be able to do some research
using my proxmark3, i'll have to code something for the ASK modulation stuff
though, yikes.

On Tue, Jul 22, 2008 at 4:30 PM, Thomas Edwards <tedwards at gmail.com> wrote:

> One quick follow-up, while it looks like all SmarTrip cards use 13.56
> MHz,  there may be/have been a transition between old SmarTrip Cubic
> GO CARDs that were not ISO 14443 B compliant:
>
> http://en.wikipedia.org/wiki/Cubic_Transportation_Systems,_Inc.
>
> "Cubic's primary contactless product is proprietary, operating on the
> same frequency as the international ISO 14443 standards. The Go Card
> uses an 8% NRZ ASK modulation scheme for transmission at 13.56 MHz,
> and a ASK-NRZ load modulation scheme for transmission from the smart
> card. This format is described International Application Number
> PCT/US92/08892 and WO 93/09516, titled "Non-contact Automatic Fare
> Collection System", filed Oct. 19, 1992."
>
> But now WMATA are putting multi-standard readers in:
>
> http://www.parking-net.com/NewsItem.aspx?ItemID=18150
>
> "Cubic will also upgrade WMATAs fare collection infrastructure with
> its patented Tri-Reader, which can process contactless smart cards
> meeting ISO 14443.  This will allow WMATA to select from a wider
> choice of card suppliers and open doors for WMATA to structure
> collaborative relationships with smart card issuers from both the
> public and private sectors."
>
> Here is the Tri-Reader data sheet,
>
> http://www.cubic.com/cts/Publications/DataSheets/A4/Tri-Reader%202.pdf
>
> "Secure communications with ISO 14443 Type A, Type B and Cubic GO CARD"
>
> -T
>  http://www.t11s.com
> ........................................................................
> .......dorkbot dc: people doing strange things with electricity.........
> ................... http://dorkbot.org/dorkbotdc .......................
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>



-- 
Andrew 'Q' Righter

Founder of the Q labs
Co-Founder of HacDC


[856] 625-4253
andrew at i11industries.com
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