Products > Test Equipment
Siglent .ads firmware file format
janekivi:
So far I managed to scroll up and down with notepad and calculate some patterns to open
and extract similar ADS files. But I can't get all out of them and run on something at the end
of file. Some portion of ZIP data from some small places is changed. May be this is the crypt...
darrylp:
So what code are you using to work out the initial decide of the ADS files ?
Has anyone started on the SDG10xx model firmware ?
--
Darryl
janekivi:
There are many different ADS file types. SDG1000 have some similar XOR FF patterns
with other packed multi files firmwares but inside here is like some kind of boot or
dump image. As you know SDG1000 series are similar with LeCroy WaveStation
and the firmware files are very similar too. Like wavestation_2000_v1.01.02.36.ads
and SDG1000-V100R001B01D01P36.ADS. Half of file is practically the same.
https://www.eevblog.com/forum/testgear/siglent-sdg1000-(aka-lecroy-wavestation)-firmware-updates/
SDG800 and SPD3303X files are a bit similar to it but SDS2000X file is very different again.
I have no progress with 3des and can't read the whole file. I can't disassemble apps.
I can, but I don't see there anything understandable...
I don't have notepad powerful enough : ( and calculator : ( and paper big enough
I think my pencil is not sharp enough.
flynnjs:
The 3DES key is fairly easy to find as are the 3DES functions.
I haven't been bothered to pick through them yet to see what has
been implemented in a non standard way...
Is it the key expansion, the order of the functions..? Give us a clue :=\
janekivi:
After choosing better hammer for SDG1000 file I see there 2 files. They are using the same XOR FF
pattern and part of file is crypted. One file is some FPGA Data? and the other is some binary program?
But what kind of... there is nowhere i see the familiar signatures.
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