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#1 2017-11-11 10:50:10

goseoan
Contributor
Registered: 2017-11-06
Posts: 11

need help hf 14a snoop data analysis

We snooped the process of writing data(maybe increment process) to the card.

However, there are two parts that differ from the existing results.

I thought it would be a change.

I do not know what the value is.

The hypothesis test is repeatedly performed.
encrypted value?
random value?
Time-related values?
increment process?

If you play a replay with this apdu command
0B 00 91 0F 67 6E error occurs in the last instruction.
In the last reader command, there is an unknown value of apdu command part, data part, 4byte. This part was brute force, but failed.

I need help so much.
-------------------------------------------------------------------------------------------
hf 14a snoop
hf list 14a

i don't this part data

( 00 00 00 65 b9 51 ea 31 52 1e 47 eb c1 ab fa 4e )
( f1 00 b1 f0 )

 8166224 | 8182448 | Rdr | 0a 00 90 40 00 00 04 00 00 03 e8 1e fc 95   | ok | ?
 8303748 | 8345348 | Tag | 0a 00 10 00 00 33 2c 0b 10 40 12 97 02 27 00 90 |  |
             < here >     |   |  | ( 00 00 00 65 b9 51 ea 31 52 1e 47 eb c1 ab fa 4e ) |  |   
                               |   |  | 90 00 32 0d             | ok |
 10444272 | 10474320 | Rdr | 0b 00 90 42 00 00 10 00 00 01 00 09 51 52 82 00 |  |
             < here > |   |      | 02 a8 4f ( f1 00 b1 f0 )08 90 d4       | ok | ?                       
 11066356 | 11082548 | Tag | 0b 00 00 00 37 14 74 11 31 a2 90 00 eb 95   | ok |

The values will continue to change as follows before write snoop data

 7217764 | 7259364 | Tag | 0a 00 10 00 00 2b 5c 0b 10 40 12 97 02 27 00 90 |  |
         |   |  | ( 00 00 00 64 f0 87 c5 60 ca 40 04 e6 68 94 93 76 )|  |
         |   |  | 90 00 77 9b             | ok |
 9358416 | 9388464 | Rdr | 0b 00 90 42 00 00 10 00 00 01 00 09 51 52 82 00 |  |
        |   |  | 02 a8 4e (67 f6 5c 3a 08 )83 28       | ok | ?
 10019796 | 10035988 | Tag | 0b 00 00 00 33 2c df 1d 46 42 90 00 81 55   | ok |

* this is all snoop data

    0 |  992 | Rdr             | 52                |  | WUPA
  2244 |  4612 | Tag        | 04 00               |  |
  7936 |  10400 | Rdr      | 93 20               |  | ANTICOLL  
  11588 |  17412 | Tag    | 99 63 fb 97 96            |  |
  21376 |  31840 | Rdr    | 93 70 99 63 fb 97 96 bc 0a        | ok | SELECT_UID  
  33092 |  36676 | Tag    | 20 fc 70              |  |
  39808 |  44576 | Rdr    | 50 00 57 cd             | ok | HALT
  60544 |  61600 | Rdr    | 26                |  | REQA
  950048 |  951040 | Rdr | 52                |  | WUPA
  952292 |  954660 | Tag | 04 00               |  |
  957984 |  960448 | Rdr | 93 20               |  | ANTICOLL  
  961636 |  967460 | Tag | 99 63 fb 97 96            |  |
  971424 |  981888 | Rdr | 93 70 99 63 fb 97 96 bc 0a        | ok | SELECT_UID  
  983140 |  986724 | Tag | 20 fc 70              |  |
  990112 |  994816 | Rdr | e0 70 be 84             | ok | RATS
  997988 | 1010724 | Tag | 09 78 00 92 02 54 13 02 04 2d e8      | ok |
 1020576 | 1040320 | Rdr | 0a 00 00 a4 04 00 07 d4 10 00 00 03 00 01 33 1d |  |
        |   |                         | f4                | ok | ?
 1051492 | 1058532 | Tag | 0a 00 6a 82 91 b5           | ok |
 1067808 | 1087552 | Rdr | 0b 00 00 a4 04 00 07 d4 10 00 00 03 00 01 33 37 |  |
   |   |                              | bc                | ok | ?
 1097956 | 1104932 | Tag | 0b 00 6a 82 2a a9           | ok |
 1115280 | 1134960 | Rdr | 0a 00 00 a4 04 00 07 d4 10 00 00 14 00 01 33 9d |  |
   |   |                              | 60                | ok | ?
 1148116 | 1148308 | Tag | 0a 00 6f 31 b0 2f 03 10 01 0b 10 40 12 97 02 27 |  |
       |    |                         | 00 90 03 30 47 92 81 20 16 04 15 20 21 04 15 01 |  |
       |   |                          | 00 00 07 a1 20 31 10 00 00 00 00 00 00 00 00 00 |  |
       |   |                          | 00 00 00 00 02 90 00 f1 17        | ok |
 1232016 | 1242544 | Rdr | 0b 00 00 ca 01 01 08 9e d9        | ok | ?
 1247188 | 1263444 | Tag | 0b 00 99 63 fb 97 34 4c 5c 08 90 00 1f b9   | ok |
 1274752 | 1285280 | Rdr | 0a 00 00 b2 01 24 1a ce 97        | ok | ?
 1293508 | 1330500 | Tag | 0a 00 02 18 00 00 33 2c 00 00 00 64 00 00 07 d0 |  |
        |   |                         | 00 00 01 00 09 51 52 82 00 02 a8 4e 90 00 4a 13 | ok |
 5524304 | 5525296 | Rdr | 52                |  | WUPA
 5526548 | 5528916 | Tag | 04 00               |  |
 5532240 | 5534704 | Rdr | 93 20               |  | ANTICOLL  
 5535892 | 5541716 | Tag | 99 63 fb 97 96            |  |
 5545680 | 5556144 | Rdr | 93 70 99 63 fb 97 96 bc 0a        | ok | SELECT_UID  
 5557396 | 5560980 | Tag | 20 fc 70              |  |
 5564112 | 5568880 | Rdr | 50 00 57 cd             | ok | HALT
 5584976 | 5586032 | Rdr | 26                |  | REQA
 6474368 | 6475360 | Rdr | 52                |  | WUPA
 6476612 | 6478980 | Tag | 04 00               |  |
 6482304 | 6484768 | Rdr | 93 20               |  | ANTICOLL  
 6485956 | 6491780 | Tag | 99 63 fb 97 96            |  |
 6495728 | 6506192 | Rdr | 93 70 99 63 fb 97 96 bc 0a        | ok | SELECT_UID  
 6507444 | 6511028 | Tag | 20 fc 70              |  |
 6514416 | 6519120 | Rdr | e0 70 be 84             | ok | RATS
 6522292 | 6535028 | Tag | 09 78 00 92 02 54 13 02 04 2d e8      | ok |
 6544752 | 6564432 | Rdr | 0a 00 00 a4 04 00 07 d4 10 00 00 14 00 01 33 9d |  |
        |   |                         | 60                | ok | ?
 6578356 | 6578548 | Tag | 0a 00 6f 31 b0 2f 03 10 01 0b 10 40 12 97 02 27 |  |
                        |     |       | 00 90 03 30 47 92 81 20 16 04 15 20 21 04 15 01 |  |
                        |    |        | 00 00 07 a1 20 31 10 00 00 00 00 00 00 00 00 00 |  |
       |    |                         | 00 00 00 00 02 90 00 f1 17        | ok |
 6661472 | 6672000 | Rdr | 0b 00 00 b2 01 24 1a 1b 08        | ok | ?
 6680100 | 6717028 | Tag | 0b 00 02 18 00 00 33 2c 00 00 00 64 00 00 07 d0 |  |
                             |   |    | 00 00 01 00 09 51 52 82 00 02 a8 4e 90 00 b9 33 | ok |
 8166224 | 8182448 | Rdr | 0a 00 90 40 00 00 04 00 00 03 e8 1e fc 95   | ok | ?
 8303748 | 8345348 | Tag | 0a 00 10 00 00 33 2c 0b 10 40 12 97 02 27 00 90 |  |
                               |   |  | 00 00 00 65 b9 51 ea 31 52 1e 47 eb c1 ab fa 4e |  |
                               |   |  | 90 00 32 0d             | ok |
 10444272 | 10474320 | Rdr | 0b 00 90 42 00 00 10 00 00 01 00 09 51 52 82 00 |  |
                               |   |  | 02 a8 4f f1 00 b1 f0 08 90 d4       | ok | ?
 11066356 | 11082548 | Tag | 0b 00 00 00 37 14 74 11 31 a2 90 00 eb 95   | ok |

Last edited by goseoan (2017-11-11 11:01:29)

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#2 2017-11-11 11:28:01

iceman
Administrator
Registered: 2013-04-25
Posts: 9,506
Website

Re: need help hf 14a snoop data analysis

Maybe should move this to Desfire category....

[edit]  ...change of category....

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#3 2017-11-11 13:39:50

goseoan
Contributor
Registered: 2017-11-06
Posts: 11

Re: need help hf 14a snoop data analysis

What's mean move to 14b category?

this is not btype card

proxmark3> hf 14a reader
UID : 99 63 fb 97
ATQA : 00 04
SAK : 20 [1]
TYPE : NXP MIFARE DESFire 4k | DESFire EV1 2k/4k/8k | Plus 2k/4k SL3 | JCOP 31/41
ATS : 09 78 00 92 02 54 13 02 04 2d e8
       -  TL : length is 9 bytes
       -  T0 : TA1 is present, TB1 is present, TC1 is present, FSCI is 8 (FSC = 256)
       - TA1 : different divisors are supported, DR: [], DS: []
       - TB1 : SFGI = 2 (SFGT = 16384/fc), FWI = 9 (FWT = 2097152/fc)
       - TC1 : NAD is NOT supported, CID is supported
       -  HB : 54 13 02 04
Answers to chinese magic backdoor commands: NO

proxmark3> hf 14b info
no 14443B tag found

Last edited by goseoan (2017-11-11 13:40:27)

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#4 2017-11-11 13:53:18

iceman
Administrator
Registered: 2013-04-25
Posts: 9,506
Website

Re: need help hf 14a snoop data analysis

Correct,  should be in desfire. 
Read the desfire datasheet and see which commands your trace contains.  It will help you in the process of analysing reader/tag communication.

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#5 2017-11-12 00:38:15

goseoan
Contributor
Registered: 2017-11-06
Posts: 11

Re: need help hf 14a snoop data analysis

I originally wrote in the Desfire category, but I did not have an answer and was in a hurry. I'm sorry.

How can I get a Desfire Data Sheet if I sign a deal with NXP? Is there any other way?

Last edited by goseoan (2017-11-12 00:38:49)

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