Homebrew Decrypting DSiWare .cia?

[Deleted User]

With the recent TWL_FIRM patches that have been released, I decided I would look into translating a DSiWare game that I've always been interested in.
Is there any way to extract a romfs from the cia file to edit? I've tried to decrypt the cia in Decrypt9, but it tells me it's already decrypted.

 

[Deleted User]

.....Anyone?

 

[Xexyz]

Aren't DSiWare games just nds files inside CIA?

 

[cearp]

first of all wait more than a few hours before bumping.
maybe the cia is already decrypted. did you make it with FunkyCIA? did you find it online? maybe it still was made with FunkyCIA because unless it was converted from dsi format, if this was dumped from the eshop then yes it will be encrypted unless someone specially decrypted it

so, decrypt it like any other eshop content... get the title key from the ticket, decrypt that, use it to decrypt the files... etc

 

[Deleted User]

first of all wait more than a few hours before bumping.

Oh, sorry about that. I noticed that it was on the second page and only had 1 view. I'll be more patient in the future.

maybe the cia is already decrypted. did you make it with FunkyCIA? did you find it online? maybe it still was made with FunkyCIA because unless it was converted from dsi format, if this was dumped from the eshop then yes it will be encrypted unless someone specially decrypted it

so, decrypt it like any other eshop content... get the title key from the ticket, decrypt that, use it to decrypt the files... etc

It was dumped with FUNKYCIA, but not by me. How would I obtain a ticket for it?

 

[cearp]

It was dumped with FUNKYCIA, but not by me. How would I obtain a ticket for it?

the ticket is in the cia, and easy way would be to use FunkyCIA to dump the ticket, use the cia as input instead of a ticket.db use -noignore to stop ignoring the ticket because it would be ignored beccause it's not a legit ticket

 

[Deleted User]

the ticket is in the cia, and easy way would be to use FunkyCIA to dump the ticket, use the cia as input instead of a ticket.db use -noignore to stop ignoring the ticket because it would be ignored beccause it's not a legit ticket

Is the tmd file that FUNKYCIA generates the ticket?

 

[cearp]

Is the tmd file that FUNKYCIA generates the ticket?

no tmd, you want the ticket.
this dsiware may already exist in decrypted form somewhere, have you had a good look?
you can tell us what game if you want, just no sharing of the files

 

[Deleted User]

no tmd, you want the ticket.
this dsiware may already exist in decrypted form somewhere, have you had a good look?
you can tell us what game if you want, just no sharing of the files

Trust me, I have had a good look. The game isn't found anywhere, and i had no way of getting it since its jpn eshop only, and i have a us 3ds. Someone on reddit dumped it for me as a cia using FUNKYCIA.

The game is Too Much Tingle Pack, if you were curious, but like I said I couldn't find a dump anywhere.

How would I obtain the ticket then? I typed into cmd [FunkyCia2.py tp.cia -no ignore -type ALL]. Is that wrong? (I'm guessing it is.)

 

[cearp]

Trust me, I have had a good look. The game isn't found anywhere, and i had no way of getting it since its jpn eshop only, and i have a us 3ds. Someone on reddit dumped it for me as a cia using FUNKYCIA.

The game is Too Much Tingle Pack, if you were curious, but like I said I couldn't find a dump anywhere.

How would I obtain the ticket then? I typed into cmd [FunkyCia2.py tp.cia -no ignore -type ALL]. Is that wrong? (I'm guessing it is.)

sure that looks like it would work
use -nodownload also, so that the files from cdn won't be downloaded, because all you want is the ticket

 

[Deleted User]

sure that looks like it would work
use -nodownload also, so that the files from cdn won't be downloaded, because all you want is the ticket

So the cetk file is the ticket?
Edit - nvm, I've confirmed that the cetk file is the ticket. Would I use decrypt9 to decrypt the cia? How would I point it to the ticket?

 

[cearp]

So the cetk file is the ticket?
Edit - nvm, I've confirmed that the cetk file is the ticket. Would I use decrypt9 to decrypt the cia? How would I point it to the ticket?

use a hex editor and find the title key in the ticket.
or just use this https://github.com/Relys/3DS_Multi_Decryptor
it will help you decrypt from your ticket.db too

 

[Deleted User]

use a hex editor and find the title key in the ticket.
or just use this https://github.com/Relys/3DS_Multi_Decryptor
it will help you decrypt from your ticket.db too

I think I got it!
Thanks!

 

[matt!]

Can you describe your whole process to us? along with what happens after you've decrypted? Thanks

 

[PedroxBest]

i know how to do that, it's not a .nds but it's ez to convert to .nds:
1. download CTRTool and extract the .ZIP: https://mega.nz/#!GaAx3KSI!qdEMzCCSY3Cs8N578UFwl2TwcF2AttD1750v-hLSMi8
2. go to the CTRTool folder and put the CIA file on the CTRTool named as "dsiware.cia"
3. run "extract.bat"
4. now you will get two files which is "00000000.app" and "00000000.app.0000.00000000"
5. delete the "00000000.app" and rename the "00000000.app.0000.00000000" to "<game name>.nds"
6. DONE!

NOTE: i only tested with a DSiWare, i don't think it work with 3DS CIAs, but you can give it a try
EDIT2: nvm, it work with 3DS CIAs too!

 

[Vague Rant]

I know this is a three-year-old thread, but you can also use GodMode9 to do what PedroxBest describes above.

1. drop a DSiWare CIA on your SD card
2. run GodMode9 (for many users, hold Start on 3DS boot)
3. navigate to your CIA in drive [0:] SDCARD and select it with A
4. select CIA image options... and Mount image to drive, then confirm you want to Enter path now with A
5. select the .app file (this is the DSiWare NDS ROM; it should be the second item in the list) and select Copy to 0:/gm9/out
6. copy your ROM from your SD card's /gm9/out folder to your PC or wherever it is you want to have it, rename it to .nds, etc.

 

[noctis90210]

How about the other files like exefs and romfs? Is there a way to access those on dsiware.cia

 

[OOngabinga]

i know how to do that, it's not a .nds but it's ez to convert to .nds:
1. download CTRTool and extract the .ZIP:
2. go to the CTRTool folder and put the CIA file on the CTRTool named as "dsiware.cia"
3. run "extract.bat"
4. now you will get two files which is "00000000.app" and "00000000.app.0000.00000000"
5. delete the "00000000.app" and rename the "00000000.app.0000.00000000" to "<game name>.nds"
6. DONE!

NOTE: i only tested with a DSiWare, i don't think it work with 3DS CIAs, but you can give it a try
EDIT2: nvm, it work with 3DS CIAs too!

Okay, I did that but when I load the rom in desmume i just get a white screen

 

[Savitar122]

I tried the CTRTool with Mario vs. Donkey Kong - Minis March Again! and I get a white screen in desmume