ROM Hack [Release] 3DS_CTR_Decryptor-VOiD

[PewnyPL]

It is possible, too lazy to explain how. someone here will surely write a tutorial shortly

You don't have to explain, but could you confirm if it will require ability to launch Homebrew on the console to decrypt eShop titles?

 

[xerpi]

I have modified the padgen 3DS tool (Launcher.dat) to split the xorpads into 256MB files, this way in theory it shouldn't hang.
The output filenames will be something like this for example:

ncchcode1.romfs.xorpad.0
ncchcode1.romfs.xorpad.1
 
ncchcode1.exefs.xorpad.0

Download: https://www.dropbox.com/s/g0znm6uyikawy74/Launcher.dat?dl=0

I'll upload the source when I know it's working.
I haven't tested if it works, if someone can test it and say if it works or not I'd be very happy

 

[Deleted-346555]

oh you posted it publicly? k w/e. but hell this shit is so half finished. Tho I can't get 2/3 things to work ~.~ stupid fucked up FS functions

 

[AbdulaPizdec]

Сan I unpack the rom without 3DS?

 

[andibad]

i think is not based of ROM size, but on time. after 1 hour, 90 % will freeze or white screen. yesterday i got 1.6 GB (i think is done but not, since is still stuck on pad 3 and is still missing ~128 MB). I think is broken so re-run again, but is stuck on 1.2 GB (on 4D700000) and i give up. and right now waiting v2 :3.

thank you for sharing this tool, i already unpacking 5 ROM XD, most of them pokemon (rumble blast, mystery dungeon), mario (2, 3D) and harvestmoon game (HM:NB). pokemon x is not counted since is broken and fail.

here decrypted romfs screenshot :

Spoiler: here

is correct right ?

CMD :

Spoiler: here

Spoiler: here

Spoiler

File list is exact same as from (http://pastebin.com/PYXUZGgD) ... i just missing my fav dirlisting app :/

 

[Cyan]

Сan I unpack the rom without 3DS?

No.
The 3DS is required to do the decryption step. It's using its hardware decrypting function.

 

[Gericom]

If someone finds .cmdl (not bcmdl) files, could you please give a screenshot of it? They are xml files that describe 3d models before they are converted to the binary bcmdl format, and can help a lot in understanding unknown parts.

 

[FAST6191]

Hi all,

For those complaing about speed, this tool uses the same functions that the 3DS normally uses. I tried using Kane's SD card libs which are a modification of libnds and fatfs but they were slower and I couldn't get writing working.

If you want it to be faster:
A) Disable print statements
B) Look into using network socket or IR port (might be faster but idk).

For those who noticed crashing on larger files I believe I know why. The exploit messes up pxi registers (or something like that) which makes the file functions unstable. This might be solved by getting Kane's library to work or by using network or IR port.

In the mean time just dump first half of xor pad and then modify the source to start on the second half and splice the two together.

Please stop messaging me to provide decrypted files or hold your hand through the process. Sorry, but I have other things to do. Thanks.

There are a few of us around here that remember IR comm ports, do not bring us back to those days.

Network wise though is fine -- if you really want you can probably even do it with netcat, a few people did it back on the DS and it mostly worked fine. I am sure if you wanted to implement a FTP setup (client or server) that nobody would complain but as I said straight netcat has been used by the general userbase in the past.

 

[Normmatt]

If someone finds .cmdl (not bcmdl) files, could you please give a screenshot of it? They are xml files that describe 3d models before they are converted to the binary bcmdl format, and can help a lot in understanding unknown parts.

Only Yugioh Japan seems to have any of those.

 

[Gericom]

Only Yugioh Japan seems to have any of those.

Are there more than one? I already have M0051.cmdl (if that's from yugioh). Could you send me a pm?
Edit: Sorry. I didn't realise you send me that one.

 

[Feroz El Mejor]

No.
The 3DS is required to do the decryption step. It's using its hardware decrypting function.

Do you need a 3DS with xploit (4.1-4.5) ?

 

[Arras]

Do you need a 3DS with xploit (4.1-4.5) ?

Yes.

 

[gamesquest1]

I have modified the padgen 3DS tool (Launcher.dat) to split the xorpads into 256MB files, this way in theory it shouldn't hang.
The output filenames will be something like this for example:

ncchcode1.romfs.xorpad.0
ncchcode1.romfs.xorpad.1
 
ncchcode1.exefs.xorpad.0

Download: https://www.mediafire.com/?ky0m5vapn6y8u75

padgen main.c edited source: http://pastebin.com/RCyyuffS
I haven't tested if it works, if someone can test it and say if it works or not I'd be very happy

has anyone got this to work? doesnt seem to work for me

 

[octopus]

It only displays

Creating pad 01
 
Completed (empty)
Out of (string)

for me.

 

[gamesquest1]

ooohhh i just realised what my problem might be is it for the homebrew rop loader and not GW....that must be it XD, but if it doesnt work anyway,...suppose ill give it a quick try anyway

 

[xerpi]

Can you try this one please?
Launcher.dat: https://www.dropbox.com/s/g0znm6uyikawy74/Launcher.dat?dl=0
3DS_CTR_Decryptor.bin: https://www.dropbox.com/s/3f8vhipvv28ndaj/3DS_CTR_Decryptor.bin?dl=0

 

[_eyCaRambA_]

Can you try this one please?
Launcher.dat: https://www.dropbox.com/s/3f8vhipvv28ndaj/3DS_CTR_Decryptor.bin?dl=0
3DS_CTR_Decryptor.bin: https://www.dropbox.com/s/3f8vhipvv28ndaj/3DS_CTR_Decryptor.bin?dl=0

I think you posted the wrong link for the launcher.dat ^^

 

[gamesquest1]

Can you try this one please?
Launcher.dat: https://www.dropbox.com/s/3f8vhipvv28ndaj/3DS_CTR_Decryptor.bin?dl=0
3DS_CTR_Decryptor.bin: https://www.dropbox.com/s/3f8vhipvv28ndaj/3DS_CTR_Decryptor.bin?dl=0

thats not a launcher.dat, you linked the same thing twice

 

[xerpi]

Thanks for noticing it, I've updated the post

 

[gamesquest1]

Thanks for noticing it, I've updated the post

text is the correct link but the actual link still leads to the old file

EDIT, the launcher loads but just has the "3DS CTR DECRYPTOR etc etc" text and nothing else is there meant to be any progress indicator?