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by ChillyBilly at 10:15 PM EDT on May 14, 2017
@Knurek: Unity Studio is the new tool I use, though I also keep a hex editor on hand to check what type of audio I ripped (for some reason, this program extracts them without a file extension.... at least, for me anyway). Hope that helps!
by Knurek at 5:44 AM EDT on May 16, 2017
@ChillyBilly: Thanks, looks really cool.
Take note though - the tool above doesn't always parse all resource packs -> I've tried it with a few games, and with Cosmic Star Heroine it only extracted data from the 450 MB FSB pack, skipping over the second 300 MB one.
by 54634564 at 9:34 PM EDT on May 19, 2017
I was off by a year in my estimate(page 85), but it's finally happened. A software method of dumping the bootroms has been released. We will finally be able to decrypt games from our PCs, for much easier extraction of their contents.
by ChillyBilly at 1:07 AM EDT on May 20, 2017
Ah yes, being able to decrypt 3DS games straight from my computer would indeed make life a lot easier.... in the meantime, here's a couple rips I got the "ol' fashioned way":


Cube Creator DX

Dragon Sinker
by Knurek at 4:26 PM EDT on May 20, 2017
@54634564: Do you know of any actual tools that do the decryption on PC already? I can't seem to find anything that isn't Godmode9/Decrypt9. :\
by 54634564 at 6:56 PM EDT on May 20, 2017
@Knurek: SciresM is working on a library to handle the crypto:
https://github.com/SciresM/CTRAesEngine

It's probably going to be a little while before tools are out.

edited 6:57 PM EDT May 20, 2017
by 54634564 at 12:29 AM EDT on May 23, 2017
So, update on tools. There's a tool called 3dstool but it's not very good, imo. Crashes, doesn't extract from CIA, hard to use.


So I decided to just whip up my own thing.

--Download removed. A better version will be posted below--

edited 3:40 PM EDT May 23, 2017
by Knurek at 12:51 AM EDT on May 23, 2017
Looks great, any chance of multiple NCCH container support? For easy decryption of DLC packs, since they usually have each DLC pack split into a separate NCCH container...
by 54634564 at 1:15 AM EDT on May 23, 2017
Yeah, I might look into cleaning up the code a bit and adding that over the next few days if anything better doesn't come out.

I'll probably just make it spit out whole decrypted NCCHs, too.

edited 1:23 AM EDT May 23, 2017
by 54634564 at 2:28 PM EDT on May 23, 2017
Ok, new version:
https://mega.nz/#!lZVCgRKC!L8B6BrxYTBMzHNSNY7mbYNmPcO7NtIHjHRj7NLajE10

Much happier with this one. Drop files(.cia/.3ds/.ncch/whatever) onto it, receive decrypted NCCHs. From CIAs it will only extract the NCCH containers, not SRL or whatever else could be in them. I was too lazy to do any testing.

Ex: Drop x.cia onto it, and it will create x.0.ncch, x.1.ncch, etc. The number is the content index, not ID, because I wasn't thinking. Too lazy to change it and do more tests.

Extract content from the NCCH containers with ctrtool:
"ctrtool --exefsdir=x0_exefs --romfsdir=x0_romfs x.0.ncch"

Can drop multiple files onto it and also call it from the command line(even with wildcards).

edited 3:08 PM EDT May 23, 2017

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