ROM Hack [RELEASE] cro_tool: CRO resigner for ROM hacks, etc

[Asia81]

WTf, what's your windows tool ?

 

[KashiToxicBlood]

WTf, what's your windows tool ?

new 3ds xl capture card and modified rom

 

[KashiToxicBlood]

It came to my attention recently (@SciresM mentioned it elsewhere) that even with RSA checks patched, hacked 3DS app libraries (CROs) still won't run when patched. Because of that, I threw together this tool to allow exactly that.
Hopefully this will help ROM hackers who've wanted to modify their games, but have been held back due to this. Pokemon, I've heard, has an assload of the game 'locked up' in CROs.

CRO/CRRs modified with this tool will only work on 3DSes with PS:VerifyRsaSha256 patched in some form. On pirate CFWs, this is patched already. ARM11-based hacks which allow for romfs-file replacement won't work with this (though none exist/are out yet).

Usage: cro_tool [-v] static.crr
-v: verify crr/cros instead of rehashing/resigning
Make sure you've got all the app's CROs in the same directory as cro_tool. Afterward you can even just drag-n-drop static.crr onto cro_tool (you should probably run it from cmd/shell to make sure it's working, though.)

Downloads (win64 binary and source):
MEGA
MEDIAFIRE

can you link me the source code?

 

[WulfyStylez]

can you link me the source code?

it's in the zip in /src, same as all my tools yo

 

[WulfyStylez]

Updated to v1.2, actually verifies nintendo's original RSA signature over the top of the CRR now. It'll fail to verify after a crr's been resigned, but that's the intended behavior since we obviously don't have their keys.

 

[Scaribou]

Sorry to bother you but I don 't really understand how works your tool.

I'm on a CFW (Rxtools 2.6, which is, I think, a pirate CFW) and I used your latest version on the cro- and crr- files of an update patch of pokmon y.
But the edited cro-files don't work anymore even after using your tool. I have an endless black screen after the 3ds logo of the game.
Do you have any idea of what I'm doing wrong ?

Thanks and sorry for my English.

 

[KashiToxicBlood]

Sorry to bother you but I don 't really understand how works your tool.

I'm on a CFW (Rxtools 2.6, which is, I think, a pirate CFW) and I used your latest version on the cro- and crr- files of an update patch of pokmon y.
But the edited cro-files don't work anymore even after using your tool. I have an endless black screen after the 3ds logo of the game.
Do you have any idea of what I'm doing wrong ?

Thanks and sorry for my English.

most likely something with CRO Verification

 

[Scaribou]

most likely something with CRO Verification

Thank you for your answer, KashiToxicBlood.

 

[jikky1800]

can someone make a tutorial on how to patch pokemon oras roms for starter randomization, and tell me how to do i make a rsa patch.

 

[Ekaitz]

Does that mean real hackrom for Pokemon?
Let's hope something ambitious, Pokemon Yellow remake.
Or Silver because Typhlosion is a great guy.

 

[motezazer]

I edited a CRO of Pokémon Y with pk3DS.
When I use cro_tool, Pokémon Y blackscreens. However, when I edit the hashtables manually, it shows the title screen.
The only difference between the two methods being the order of hashes in CRR (I kept the original one), I think that it *does* matter.
I hope that it will help to improve this tool.

 

[Swear]

Any news about how to make it work in ORAS games?

Inviato dal mio Nexus 5 utilizzando Tapatalk

 

[John Peeble]

Whenever I try to run cro_tool it says it isn't able to run on my pc

 

[YugamiSekai]

Uhh, what's a CRO?

 

[mgrev]

well with this i might look into having a 10% shiny rate (if i find our how to actually do it)

 

[Ewin]

Work only for Pokemon games

 

[SahierKHLover]

Does that mean real hackrom for Pokemon?
Let's hope something ambitious, Pokemon Yellow remake.
Or Silver because Typhlosion is a great guy.

just telling you right there might be a pokemon red remake for the 3ds like a rom hack for pokemon oras not sure whne it will release but I have an early beta of it so yeah

 

[Thelostrune]

just telling you right there might be a pokemon red remake for the 3ds like a rom hack for pokemon oras not sure whne it will release but I have an early beta of it so yeah

Honestly, I'd stop doing baseless speculation like that to further bump dead threads. Of course saying Ewin provided obvious, already known and therefore useless information.
Anyway, if you want to consult CRO shit, you better try get in contact with Kaphotics and the bunch, which I'm just gonna tell you good luck lmao

 

[SahierKHLover]

Honestly, I'd stop doing baseless speculation like that to further bump dead threads. Of course saying Ewin provided obvious, already known and therefore useless information.
Anyway, if you want to consult CRO shit, you better try get in contact with Kaphotics and the bunch, which I'm just gonna tell you good luck lmao

no I am not lieing there might be it's just the creator is kinda worried that not many people will like it and let me tell you he has put a lot of effort in to it

 

[Ewin]

Honestly, I'd stop doing baseless speculation like that to further bump dead threads. Of course saying Ewin provided obvious, already known and therefore useless information.
Anyway, if you want to consult CRO shit, you better try get in contact with Kaphotics and the bunch, which I'm just gonna tell you good luck lmao

So change the name of the title TO "CroTool for Pokemon games" to be less blurred. A subject is never dead, just update it, buddy. In animal crossing update 1.5 there are .cro files, I will have tried