Research, development and trades concerning the powerful Proxmark3 device.
Remember; sharing is caring. Bring something back to the community.
"Learn the tools of the trade the hard way." +Fravia
You are not logged in.
Time changes and with it the technology
Proxmark3 @ discord
Users of this forum, please be aware that information stored on this site is not private.
Does someone have a software which calcs the accessbits for Mifare?
Otherwise I have to write one myself.
So please, send me a link of it if you have it.
Offline
http://proxmark.org/forum/viewtopic.php?id=1408
Offline
Sweet!
I knew I saw somewhere here. Many thanks Asper!
Offline
You are welcome, thank you for your testing!
Offline
Well, I have a hard time understanding the tool.
So I'm thinking of writing a software that "maps" (visually) the memory of an Mifare dumpdata.bin file. With some color coding and editable textboxes, will be more easier to analyze any mifare-datadumps.
Or maybe someone already here have developed such a tool?
Offline
It is not difficult to understand: in "decode mode" you put (copy/paste) the access bytes of a sector in the specific box and it tells you what key A and B can do to each of the 4 sector blocks.
On the "code" function you manually select (click) what you want to do with key A and B in each of the 4 blocks and press the code button to obtain access bytes.
It is really simple...
Last edited by asper (2013-06-26 10:48:38)
Offline
Well, for a stranger to Mifares accessbits it is not so clear as I would like it to be.
However, I'm analyzing the contents of a dump, from a public transportation company's pay-cards. After reading some of the specifications I realized that they (the company) sees a 16b (1block) as a long bit-stream which they divided as fitted. That made me understand and make me shift my focus from a byte-sized world to a bit-size world. And rfid seems be a bit-sized world. Funny.
Offline