cannot decode 990 Pro 4B2QJXD7

[prahal]

https://download.semiconductor.samsung.com/resources/software-resources/Samsung_SSD_990_PRO_4B2QJXD7.iso

LC_ALL=C ./sfwd.sh ../Samsung_SSD_990_PRO_4B2QJXD7.iso 
Decompressing iso...
Decompressing initrd...
Extracting fumagician...
Dumping Key...
base64: invalid input
Decrypting...
^C

I had to halt it.

LC_ALL=C ./sfwd2.sh ../Samsung_SSD_990_PRO_4B2QJXD7.iso 
Decompressing iso...
Decompressing initrd...
Extracting fumagician...
Dumping Key...
base64: invalid input
KEY: 4add7a
Decrypting...
hex string is too short, padding with zero bytes to length
hex string is too short, padding with zero bytes to length
hex string is too short, padding with zero bytes to length
hex string is too short, padding with zero bytes to length
Done.

I cannot unzip -t 4B2QJXD7.bin so I belive it is not correct.

Also ./samsung-magic.py < ../fw/root/fumagician/DSRD.enc does not output XML so I believe the python version is also broken.

[prahal]

Duplicate of chrivers/samsung-firmware-magic#4
If I extract the key with strings ../fw/root/fumagician/fumagician | grep -E '^[A-Za-z0-9+/]{42}[AEIMQUYcgkosw048]=$' | base64 -d | xxd -p -c 32

then replace the key value in samdecrypt.sh, then:

bash ./samdecrypt.sh ../fw/root/fumagician/DSRD.enc
cat ../fw/root/fumagician/DSRD.bin 
<SSD>
<SN>ALL</SN>
<MOD>ALL</MOD>
<CURFW>0B2QJXD7</CURFW>
<NEWFW>4B2QJXD7</NEWFW>
<MFW>4B2QJXD7_20231109.bin</MFW>
<MFW>4B2QJXD7_30231109.bin</MFW>
</SSD>
<SSD>
<SN>ALL</SN>
<MOD>ALL</MOD>
<CURFW>1B2QJXD7</CURFW>
<NEWFW>4B2QJXD7</NEWFW>
<MFW>4B2QJXD7_20231109.bin</MFW>
<MFW>4B2QJXD7_30231109.bin</MFW>
</SSD>
<SSD>
<SN>ALL</SN>
<MOD>ALL</MOD>
<CURFW>2B2QJXD7</CURFW>
<NEWFW>4B2QJXD7</NEWFW>
<MFW>4B2QJXD7_20231109.bin</MFW>
<MFW>4B2QJXD7_30231109.bin</MFW>
</SSD>
<SSD>
<SN>ALL</SN>
<MOD>ALL</MOD>
<CURFW>3B2QJXD7</CURFW>
<NEWFW>4B2QJXD7</NEWFW>
<MFW>4B2QJXD7_20231109.bin</MFW>
<MFW>4B2QJXD7_30231109.bin</MFW>
</SSD>
<SSD>
<SN>ALL</SN>
<MOD>ALL</MOD>
<CURFW>0B2QJXG7</CURFW>
<NEWFW>4B2QJXD7</NEWFW>
<MFW>4B2QJXD7_20231109.bin</MFW>
<MFW>4B2QJXD7_30231109.bin</MFW>
</SSD>

and:

bash ./samdecrypt.sh ../fw/root/fumagician/4B2QJXD7.enc
unzip -t ../fw/root/fumagician/4B2QJXD7.bin 
Archive:  ../fw/root/fumagician/4B2QJXD7.bin
    testing: 4B2QJXD7_20231109.enc    OK
    testing: 4B2QJXD7_20231109.enc    OK
    testing: 4B2QJXD7_30231109.enc    OK
No errors detected in compressed data of ../fw/root/fumagician/4B2QJXD7.bin.