Homebrew Homebrew Development

[ernilos]

I was wondering, has anyone wrote some code to interact with thr aes engine? I'm not really friendly with the io registers. I've seen time ago someone who posted some basic piece of code, but it has been removed in less than a day, probably for piracy. I'd like this to improve my studyes on the hb scene.

Time ago I wrotte the code in libctru for PS service (AES), but it don't acess to the "interesan" keyslots so never I didn't used... I don't know if it works properly
PS.h: http://pastebin.com/NvpxeYfX
PS.c: http://pastebin.com/UAZRCTFJ

 

[Roxas75]

Time ago I wrotte the code in libctru for PS service (AES), but it don't acess to the "interesan" keyslots so never I didn't used... I don't know if it works properly
PS.h: http://pastebin.com/NvpxeYfX
PS.c: http://pastebin.com/UAZRCTFJ

That's good. I actually was searching something more specific, like direct interaction with the engine. I use arm9 to make this kind of experiments.

 

[Bug_Checker_]

I was wondering, has anyone wrote some code to interact with thr aes engine? I'm not really friendly with the io registers. I've seen time ago someone who posted some basic piece of code, but it has been removed in less than a day, probably for piracy. I'd like this to improve my studyes on the hb scene.

Do you have any additional info? Like who? when? where?

 

[Slashmolder]

It was someone in waffle's group. It directly used the IO registers. Here's a mirror of it http://pastebin.com/qaV25PX9

 

[Roxas75]

It was someone in waffle's group. It directly used the IO registers. Here's a mirror of it http://pastebin.com/qaV25PX9

That was exactly what i meant. Thanks man

 

[Relys]

It was someone in waffle's group. It directly used the IO registers. Here's a mirror of it http://pastebin.com/qaV25PX9

Does anyone have the lib and crypto headers?

Well, i think we can download the GBA VC in .3DS, maybe the key is just 00000, i don't know to be honest... but we can try extract it, after it, i can try reverse and understand how it work

I would think that it would use 0000.... AES key. I think they use the 3DS's AES engine to do the decryption (Because it's impossible to get the key without decapping IIRC), then they inject VC game and re-encrypt with all 0's (Gateway's homebrew format) and rebuild the .3DS header.

Although AES in symmetric right? So I guess they could transfer it back to the 3DS and have the AES engine encrypt it????? Is that right?

 

[alexenochs]

If I'm not mistaken wasn't there a GB emulator floating Around somewhere? Don't think it ran from the gw tho

 

[Duo8]

Quick question: Why are GW HB encrypted and does GW use the AES engine to decrypt it? If so does that mean they can tell the engine to use whatever key they like?

 

[cracker]

If I'm not mistaken wasn't there a GB emulator floating Around somewhere? Don't think it ran from the gw tho

There were GB/C Pokemon games injected into VC (that require a flash cart). That's probably what you are thinking of.

 

[Abcdfv]

There were GB/C Pokemon games injected into VC (that require a flash cart). That's probably what you are thinking of.

There was also a fledgling GB emulator, not sure who was working on it though. St4rk maybe?

 

[gamesquest1]

yeah it was st4rk, and it was a launcher.dat hombebrew not .3ds style

Here my version of port from GameBoy Emulator(thank a lot seagal112).

This version have Pokémon Red in Launcher.dat, frameskip(L1 up/R1 down).

I call my version of 3DGB(funny name no ?), and a video with pokémon red working fine:



You can find the link for download in my blog, check the video.

Thanks Seagal112 :]

 

[st4rk]

There was also a fledgling GB emulator, not sure who was working on it though. St4rk maybe?

I am working on a Game Boy Emulator for 3DS(3DSBoy), just wait :3

 

[cracker]

Wow. There are so many sleeper homebrew releases that get buried in these threads it seems. I also found quite a few hb demos, etc. by crawling via contributor links on github that I hadn't heard of before. It baffles me why 3Dbrew doesn't have a section for the actual homebrew! It is more akin to GBATEK than it's sister sites.

 

[Relys]

Quick question: Why are GW HB encrypted and does GW use the AES engine to decrypt it? If so does that mean they can tell the engine to use whatever key they like?

GW HB are encrypted with 00000.... AES key as opposed to using the 3DS's AES engine to decrypt. According to plutoo Gateway patches SHA256 checks and RSA signature to allow these files to run.

 

[Ryft]

Wow. There are so many sleeper homebrew releases that get buried in these threads it seems. I also found quite a few hb demos, etc. by crawling via contributor links on github that I hadn't heard of before. It baffles me why 3Dbrew doesn't have a section for the actual homebrew! It is more akin to GBATEK than it's sister sites.

Filetrip has a 3DS section with a homebrew category and some others. http://filetrip.net/3ds-downloads/

 

[VMM]

Well Stark, it seems Mega-Mario was faster than you with that SNES emulator.
BTW, with the homebrew section in Filetrip you can now host your NES emulator and have a place to keep up every update you do and their changelogs.

 

[desertwarior]

can someone tell me or direct me to links about 3DS/Arm11 programing , sdk, documentations?



never mind i was too stupid to see the first page.

 

[Arisotura]

Is there a particular reason why modifying the access info in gw_workaround.rsf causes apps to not launch? Because that file contains its own key for signing the data, so signing shouldn't be an issue there.

In any case, I need access to csnd:SND and it's not listed there.

 

[Deleted User]

csdn:SND is not used by games. You are trying to use the wrong service API for sound

 

[Normmatt]

Is there a particular reason why modifying the access info in gw_workaround.rsf causes apps to not launch? Because that file contains its own key for signing the data, so signing shouldn't be an issue there.

In any case, I need access to csnd:SND and it's not listed there.

No retail software has CSND in its service access list as far as I can see so its probably always allowed.