[solved] fix Key not found (lfsr common prefix list is null)

platinium gsm · 2016-08-28 19:27:32

This problem has been already report but not resolved...

i manage to clone a lot of tag mifare 1k but some of them just let me read uid without working in the dark attack.

i have usb 2.0
my version is :
proxmark3> hw version

proxmark3> #db# Prox/RFID mark3 RFID instrument
proxmark3> #db# bootrom: svn 755 2013-07-13 08:14:12
proxmark3> #db# os: svn 755 2013-07-13 08:14:16
proxmark3> #db# FPGA image built on 2012/ 1/ 6 at 15:27:56

and my antenna HF give me this without tag

proxmark3> # LF antenna: 0.00 V @ 125.00 kHz
proxmark3> # LF antenna: 0.00 V @ 134.00 kHz
proxmark3> # LF optimal: 0.00 V @ 12000.00 kHz
proxmark3> # HF antenna: 7.22 V @ 13.56 MHz
proxmark3> # Your LF antenna is unusable.

What can i do?

thanks

Last edited by platinium gsm (2016-09-14 10:45:54)

iceman · 2016-08-28 20:04:39

The darkside attack works very bad against clones/magictags or tags with a very weak/fixed prng.

Your voltage hf-antenna is quite weak. You should have at least 15v, without a tag on it, from a good antenna.

platinium gsm · 2016-08-29 09:18:56

ok
i use original tags like vigik so this is not my problem.
For hf antenna you are right since one weeks i have this problem.

i must have touch something or may be since i ve done update.
i had 14v before update

do i have to buy another one? can i make upate again to fix it?

i use gaucho application because iti s easier for me.

thanks

ps:"...a very weak/fixed prng" what is prng?

iceman · 2016-08-29 09:21:47

Just try to pull the latest source from Github PM3 master, compile and flash bootrom / fullimage and use that client.

That one should work with Gaucho's GUI.

Look at yr antenna cable or the antenna contacts and then read the antenna section

For your other questions, google is your friend.

ntk · 2016-08-29 10:43:51

a switch on HF antenna...

prng is platinum knowledge when hack HF

iceman · 2016-08-29 11:13:43

Isn't like radiowar's or ryscorp's hf antennas which has that switch? I've have not seen in on xfpga green antennas.

platinium gsm · 2016-08-31 16:50:42

ok thanks i m gona try tonight to fix it .
thanks!

platinium gsm · 2016-09-05 17:50:55

i finally update my box.
proxmark3> hw version
#db# Prox/RFID mark3 RFID instrument
#db# bootrom: svn 848 2014-02-28 07:25:33
#db# os: svn 848 2014-02-28 07:25:37
#db# FPGA image built on 2014/02/25 at 07:43:59
uC: AT91SAM7S256 Rev B
Embedded Processor: ARM7TDMI
Nonvolatile Program Memory Size: 256K bytes
Second Nonvolatile Program Memory Size: None
Internal SRAM Size: 64K bytes
Architecture Identifier: AT91SAM7Sxx Series
Nonvolatile Program Memory Type: Embedded Flash Memory

tune without tag give me:
proxmark3> # LF antenna: 0.00 V @ 125.00 kHz
proxmark3> # LF antenna: 0.00 V @ 134.00 kHz
proxmark3> # LF optimal: 0.00 V @ 12000.00 kHz
proxmark3> # HF antenna: 6.96 V @ 13.56 MHz
proxmark3> # Your LF antenna is unusable.

may be i must buy new antenna? or build one

Last edited by platinium gsm (2016-09-05 17:59:02)

iceman · 2016-09-05 18:03:27

No, your bootrom and os svn 848.
ref: https://github.com/Proxmark/proxmark3

Pull and use that source.

platinium gsm · 2016-09-06 10:42:28

MISTER ICEMAN you are a genious:::::
i make really last update i think

proxmark3> hw version
[[[ Cached information ]]]
Prox/RFID mark3 RFID instrument
bootrom: /-suspect 2015-11-19 10:08:02
os: /-suspect 2015-11-19 10:08:09
LF FPGA image built for 2s30vq100 on 2015/03/06 at 07:38:04
HF FPGA image built for 2s30vq100 on 2015/11/ 2 at 9: 8: 8
uC: AT91SAM7S256 Rev B
Embedded Processor: ARM7TDMI
Nonvolatile Program Memory Size: 256K bytes. Used: 169916 bytes (65%). Free: 92228 bytes (35%).
Second Nonvolatile Program Memory Size: None
Internal SRAM Size: 64K bytes
Architecture Identifier: AT91SAM7Sxx Series
Nonvolatile Program Memory Type: Embedded Flash Memory
proxmark3>
proxmark3> hw tune
Measuring antenna characteristics, please wait...#db# DownloadFPGA(len: 42096)
....#db# DownloadFPGA(len: 42096)
# LF antenna: 0.00 V @ 125.00 kHz
# LF antenna: 0.00 V @ 134.00 kHz
# LF optimal: 0.00 V @ 12000.00 kHz
# HF antenna: 10.42 V @ 13.56 MHz
# Your LF antenna is unusable.
proxmark3>

you confirm i m finally really updated now?

my antenna problem is fixed , i m gona try again now.

thanks to be really good!!!

Last edited by platinium gsm (2016-09-06 10:52:11)

platinium gsm · 2016-09-06 11:16:27

all is ok now .

but i always need 2 cm between tag and antenna to read tag. is this normal?

xml file always load at starting for 12 seconds on gaucho s software .How can i fix this?

Last edited by platinium gsm (2016-09-06 12:45:49)

iceman · 2016-09-06 15:04:45

Yes, now you have the latest bootrom

OBS! Remember to only use the same fullimage & client from the same build.

This updated version increases the power in antenna, increasing the reading distance.

The last question, you should start a new thread about.

If your original question is answered, edit the first post in thread and add [solved] to the subject line.

Proxmark3 community

Announcement

#1 2016-08-28 19:27:32

[solved] fix Key not found (lfsr common prefix list is null)

#2 2016-08-28 20:04:39

Re: [solved] fix Key not found (lfsr common prefix list is null)

#3 2016-08-29 09:18:56

Re: [solved] fix Key not found (lfsr common prefix list is null)

#4 2016-08-29 09:21:47

Re: [solved] fix Key not found (lfsr common prefix list is null)

#5 2016-08-29 10:43:51

Re: [solved] fix Key not found (lfsr common prefix list is null)

#6 2016-08-29 11:13:43

Re: [solved] fix Key not found (lfsr common prefix list is null)

#7 2016-08-31 16:50:42

Re: [solved] fix Key not found (lfsr common prefix list is null)

#8 2016-09-05 17:50:55

Re: [solved] fix Key not found (lfsr common prefix list is null)

#9 2016-09-05 18:03:27

Re: [solved] fix Key not found (lfsr common prefix list is null)

#10 2016-09-06 10:42:28

Re: [solved] fix Key not found (lfsr common prefix list is null)

#11 2016-09-06 11:16:27

Re: [solved] fix Key not found (lfsr common prefix list is null)

#12 2016-09-06 15:04:45

Re: [solved] fix Key not found (lfsr common prefix list is null)

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