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#1 2011-07-14 08:18:14

laser
Contributor
Registered: 2011-06-23
Posts: 24

how to extract mifare key

I have extract mifare key and write this post for the one later.

1. snoop the communication between a reader and a card. use the command"hf 14a snoop". to stop the commands, jist press the key on the board.

2. list the data we obtain from snoop command.

James wrote:

proxmark3> hf 14a list
recorded activity:
ETU     :rssi: who bytes
---------+----+----+-----------
+      0:   0: TAG 04  00
+  34306:    :     93  20
+     66:   0: TAG b2  96  5f  35  4e
+  38954:    :     93  70  b2  96  5f  35  4e  81  9e
+     66:   0: TAG 08  b6  dd
+  40754:    :     60  00  f5  7b
+    114:   0: TAG 7c  ea  ff  12
+   1198:    :     80  1b  e6  b7  03  bf  d9  2c     !crc
+     66:   0: TAG 92! d1  16! bf!
+  33618:    :     45  f0  02  85     !crc
+     66:   0: TAG 92! ac! 5a  0d! d0  5d  3c  09  09  69  da! 1a! 3b  f2! b9!
17  b3! 3e     !crc
+  44842:    :     96  3e  b2  d7     !crc
+     66:   0: TAG a6  54! 1c  3b! 5c  66  62! 20  17! d7! a1! 18! 9f  c6  d6
f9! e6  1b     !crc
+  45146:    :     43  e1  63  38     !crc
+     64:   0: TAG e9! 52  63! e5! 94  57! 16! 34! e4  0e  89  5b! 4a  3d  27
42! 0a! dd!    !crc
+  45324:    :     f8  26  5d  53     !crc
+     64:   0: TAG 6a! 83  c7  7b! c5! 45! 9f  11  a1! b2  d9  66  ed! 00  15!
bf  53  81     !crc

3. use a software named craptgui.exe to caculate the key.




you can also read the articles
http://hi.baidu.com/xtigmh/blog/item/46 … a9378.html

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#2 2011-07-15 22:50:15

spookyman166
Member
Registered: 2011-06-20
Posts: 15

Re: how to extract mifare key

Can you snoop the keys for a Mifare SmartMX?

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#3 2011-07-17 13:04:04

laser
Contributor
Registered: 2011-06-23
Posts: 24

Re: how to extract mifare key

I am not sure, but we can snoop any iso14443a communication with pm3.

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