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LawPoh

Member

Registered: 2013-03-19

Posts: 8

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hf mf dump is not doing correctly

Hi guys,

need some help again on the hf mf dump command.

I believe I have already gotten the key for the card which I am working on.  However, the card dump is just not reacting correctly from the "hf mf rdsc" command.  For example, the data in Sector 3 would be:

data:0b 71 07 ef 2f 4d 87 e2 d8 7d 28 c4 52 d2 ef 2f
data:84 9d 74 7f 55 7c be 3a 84 9d 74 7f 55 7c be 3a

data:00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
data:00 00 00 00 00 00 ff 07 80 69 ff ff ff ff ff ff

But when I executed the card dump, the output is:
Am i doing this correctly?

C0Y0-Ck3r

Contributor

Registered: 2012-11-08

Posts: 87

Re: hf mf dump is not doing correctly

Are you sure of having a dump keys file with all the keys inside. Else, post your steps of doing so.

LawPoh

Member

Registered: 2013-03-19

Posts: 8

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Re: hf mf dump is not doing correctly

Hi C0Y)-C3kr,

Im pretty sure that the keys were uncovered and card contents were seen using another android application.

As attached is the output of the nested command, "hf mf nested 1 0 A FFFFFFFFFFFF".

|---|----------------|---|----------------|---|
|sec|key A           |res|key B           |res|
|---|----------------|---|----------------|---|
|000|  ffffffffffff  | 1 |  ffffffffffff  | 1 |
|001|  ffffffffffff  | 1 |  ffffffffffff  | 1 |
|002|  ffffffffffff  | 1 |  ffffffffffff  | 1 |
|003|  ffffffffffff  | 1 |  ffffffffffff  | 1 |
|004|  ffffffffffff  | 1 |  ffffffffffff  | 1 |
|005|  ffffffffffff  | 1 |  ffffffffffff  | 1 |
|006|  ffffffffffff  | 1 |  ffffffffffff  | 1 |
|007|  ffffffffffff  | 1 |  ffffffffffff  | 1 |
|008|  ffffffffffff  | 1 |  ffffffffffff  | 1 |
|009|  ffffffffffff  | 1 |  ffffffffffff  | 1 |
|010|  ffffffffffff  | 1 |  ffffffffffff  | 1 |
|011|  ffffffffffff  | 1 |  ffffffffffff  | 1 |
|012|  ffffffffffff  | 1 |  ffffffffffff  | 1 |
|013|  ffffffffffff  | 1 |  ffffffffffff  | 1 |
|014|  ffffffffffff  | 1 |  ffffffffffff  | 1 |
|015|  ffffffffffff  | 1 |  ffffffffffff  | 1 |
|---|----------------|---|----------------|---|

C0Y0-Ck3r

Contributor

Registered: 2012-11-08

Posts: 87

Re: hf mf dump is not doing correctly

Apparently all the keys are ffffffff seems little weird for me if you didnt change the keys.
what application did you use ?
And normally after that, if it is the right keys what do you get when you type the dump command ?

Any way join the irc channel for more help #proxmark3 on freenode server.

LawPoh

Member

Registered: 2013-03-19

Posts: 8

Email

Re: hf mf dump is not doing correctly

I was using the MCT app discussed in http://www.proxmark.org/forum/viewtopic.php?id=1535 and I was able to successfully write back to the desired sector/ block.  So I can confirm that the dump and key used was correct.

Am just having  problems with the dump file from proxmark.  Cant understand why it would be displayed as an empty dump file.

Would appreciate any help i can get here..

Thanks