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Metrocard hacking
Topic: Technology 12:59 pm EDT, Jul 14, 2004

I'm modifying some of my code to deal with the non standard it uses. Data is on track 2, but I'm not yet sure how to read it.

UPDATE!
The code in CVS for Stripe Snoop now supports Raw mode with a "-r". All this information was collected with it.

Here is what I have looking at some 1 signle ride cards.

On the back of the card is a date (all are issued 7/11/2004), a time, and a number. Based on different single ride cards I have, I believe this number is a station id. (for these cards, all are 1445, but I have others, like 1439 and 0122).

Some of this data looks very similiar or is the same. This is only track 2. Most likely , the rest of the data is stored on Track 3,
the read/write track. Also, the number of leading, trailing zeros can be random. It does not seem to follow any known character set.

4:44P 1445
0000000111100111101110000000000001010010010110000110101001011100100
00001100000100001000000000000000000000000000000000010

5:59P 1445
0000000111100111101110000000000001010010010110000110101001011100100
00001100000100001000000000000000000000000000000000010

5:59P 1445
0000000011110110110111000000000000101001001011000011010100101110010
0000011000001000000100000000000000000000000000000000000

6:00P 1445
0000000011110111000111000000000000101001001011000011010100101110010
000001100000100000000000000000000000000000000000000000000

6:02P 1445
0000000011110111000111000000000000101001001011000011010100101110010
00000110000010000000000000000000000000110000000000000000

Metrocard hacking



 
 
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