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Jul - The Cutting Room Floor - 3DS ROM decryption, file extracting, now possible. New poll - New thread - New reply
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Celice
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Posted on 08-30-14 11:36:40 PM Link | Quote
An example tutorial:

http://gbatemp.net/threads/extracting-models-and-textures-from-3ds-games.370788/

Hopefully this can get some new entries on the wiki in the coming weeks
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Posted on 08-31-14 02:51:49 AM Link | Quote
I totally have a 3DS game I want to rip open and maybe document if I find something.

But wait, do you need a 3DS with firmware 4.1-4.5 to be able to decrypt a ROM? I'm referencing the xor files.

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Posted on 08-31-14 02:53:14 AM Link | Quote
My understanding is that it requires 4.5 or less, yes.
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Posted on 08-31-14 03:11:18 AM Link | Quote
Dammit. Already counted out before I had a chance to even look at anything. Nothing I can do but sit back for now then.

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Posted on 08-31-14 04:15:58 AM Link | Quote
Originally posted by Cuber456
Dammit. Already counted out before I had a chance to even look at anything. Nothing I can do but sit back for now then.
You and I both. Stuck on 8.1.0-19U with no hopes to dig in to this kinda stuff.
Celice
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Posted on 08-31-14 04:21:06 AM Link | Quote
Originally posted by Xenesis
My understanding is that it requires 4.5 or less, yes.

I heard the same thing, but before that, I also heard you only need that to figure out the key for your game, and then you can use that with another program to break down files on your computer?

I figure each game will have their own unique key, but that each copy will still share the same key. If this is true, we'll likely see a scene record of every key for each game, just like their checksums of proper dumps (right?).
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Posted on 08-31-14 09:18:51 AM Link | Quote
Originally posted by Celice
I figure each game will have their own unique key, but that each copy will still share the same key. If this is true, we'll likely see a scene record of every key for each game, just like their checksums of proper dumps (right?).
I wouldn't be surprised if decrypted ROMs started floating around the web regardless if every ROM image has a unique key or not. I expect this to happen, especially once 3DS emulators start to emerge because of this. It's just a waiting game for now.

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Posted on 08-31-14 11:48:22 AM (last edited by Hiccup at 08-31-14 11:49:46 AM) Link | Quote
Luckily, I haven't updated my 3DS in ages. Unluckily, that is because I lost it ages ago. I dunno if it was on 4.5 though.

I wonder if it possible to downgrade.

EDIT:
typo

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Posted on 08-31-14 12:49:24 PM Link | Quote
Originally posted by Hiccup
Luckily, I haven't updated my 3DS in ages. Unluckily, that is because I lost it ages ago. I dunno if it was on 4.5 though.

I wonder if it possible to downgrade.

EDIT:
typo


Not unless you made a NAND backup and have the hardware to restore it.

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Posted on 08-31-14 07:40:12 PM Link | Quote
Doesn't the 3DS have e-fuses for updates?
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Posted on 09-09-14 12:48:45 AM (last edited by ukueleh at 09-09-14 01:42:37 AM) Link | Quote
^ E-fuses? I figured firmware updates were just flashing the NAND. Google tells me eFuses are a Microsoft and Motorola thing.

On 3DS decryption, let this be said because it took me forever to find this out: To generate the xorpad, you don't even need a flashcart capable of running 3DS roms. You only need a DS flashcart that can run on a 3DS. And it doesn't have to be a Gateway .

(Same goes for 3DS rom dumping: Gateway's Launcher.dat can dump a 3DS cartridge to SD, and as long as it's the 1:1 original unmodified Launcher.dat, you can use a non-Gateway cart without bricking anything.)

Note: I have not attempted any of this myself, this is all from info I've gathered awayways.


e: vvv Thanks for clarifying that part
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Posted on 09-09-14 12:55:43 AM Link | Quote
The Gateway Launcher.dat is used for cartridge dumping/NAND backup. There are alternate Launcher.dat files that generate xorpad files.
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Posted on 09-09-14 03:26:49 AM Link | Quote
Originally posted by ukueleh
On 3DS decryption, let this be said because it took me forever to find this out: To generate the xorpad, you don't even need a flashcart capable of running 3DS roms. You only need a DS flashcart that can run on a 3DS. And it doesn't have to be a Gateway .

I'm sorry but can you please clarify this? You make is sound as if any 3DS, independent of firmware, can generate the xorpad as long as the 3DS can run the DS flash cart. That alone sounds strange to me since a DS flash cart can only run in DS mode to my knowledge. How can you possibly generate the xorpad in DS mode? Perhaps I am just missing something (Totally possible).

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Posted on 09-09-14 10:31:58 AM Link | Quote
Originally posted by Cuber456
Originally posted by ukueleh
On 3DS decryption, let this be said because it took me forever to find this out: To generate the xorpad, you don't even need a flashcart capable of running 3DS roms. You only need a DS flashcart that can run on a 3DS. And it doesn't have to be a Gateway .

I'm sorry but can you please clarify this? You make is sound as if any 3DS, independent of firmware, can generate the xorpad as long as the 3DS can run the DS flash cart. That alone sounds strange to me since a DS flash cart can only run in DS mode to my knowledge. How can you possibly generate the xorpad in DS mode? Perhaps I am just missing something (Totally possible).


Ingredients:
* Nintendo 3DS console running 4.1-4.5
* GW_INSTALLER.NDS from the latest version of the software from http://gateway-3ds.com/
* DS(i) flashcart
* Launcher.dat of choice

Method:
1. Insert GW_INSTALLER.NDS into the DS(i) flashcart and boot on your 3DS console.
2. Run GW_INSTALLER.NDS from your flashcart's menu and let it install the DS profile exploit.
3. Return to the system menu once procedure has finished.
4. Insert Launcher.dat onto the SD Card that will be inserted into the 3DS console.
5. Navigate to Options > Other Settings > Profiles > Nintendo DS Profile and watch as your Launcher.dat runs!

All rights reserved, results may vary.

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Posted on 09-09-14 06:51:08 PM Link | Quote
Ok, that ingredients and methods list makes sense. Thanks for compiling it, einstein95.

Damn, I really want to rip into a game too. Back to waiting I suppose. Nothing else I can do.

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Posted on 09-10-14 04:43:14 AM Link | Quote
Originally posted by Cuber456
Damn, I really want to rip into a game too. Back to waiting I suppose. Nothing else I can do.


Same boat here. If I can't find an XL with low firmware, I could...
A. Trawl eBay for a crappy broken "dumper" 3DS with low firmware
B. Wait for sspwn and see if anyone writes a rom dumper for that
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Posted on 09-10-14 06:56:36 AM Link | Quote
Originally posted by ukueleh
B. Wait for sspwn and see if anyone writes a rom dumper for that


This will never happen. sspwn will only give user permissions, unlike the root permissions that running the launcher.dat does. This means that sspwn wont have access to the AES hardware needed to do the xorpad generation.

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Posted on 09-10-14 07:51:25 AM Link | Quote
Random thought, but if we can get those keys, doesn't that mean we can also make signed 3DS executables? (at which point the firmware version doesn't really matter, banned keys aside, but that can be worked around)
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Posted on 09-10-14 07:55:44 AM (last edited by Sanky at 09-10-14 07:56:20 AM) Link | Quote


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Originally posted by Sik
Random thought, but if we can get those keys, doesn't that mean we can also make signed 3DS executables? (at which point the firmware version doesn't really matter, banned keys aside, but that can be worked around)

Asymmetric encryption means the encryption key is different from the decryption key, and having only the decryption one won't help you encrypt.

The keys Nintendo uses to encrypt 3DS games are probably on a computer without network access locked in a safe somewhere at Nintendo HQ.

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Posted on 09-10-14 01:47:12 PM Link | Quote
Oh, I guess they learned from the Wii =/ (where people figured out how to encrypt new executables)
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Jul - The Cutting Room Floor - 3DS ROM decryption, file extracting, now possible. New poll - New thread - New reply


Rusted Logic
Acmlmboard - commit 47be4dc [2021-08-23]
©2000-2022 Acmlm, Xkeeper, Kaito Sinclaire, et al.

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line 449 column 62 - Warning: <img> lacks "alt" attribute
line 449 column 111 - Warning: <img> lacks "alt" attribute
line 449 column 161 - Warning: <img> lacks "alt" attribute
line 460 column 15 - Warning: <img> lacks "alt" attribute
line 469 column 468 - Warning: <img> proprietary attribute value "absmiddle"
line 469 column 468 - Warning: <img> lacks "alt" attribute
line 484 column 22 - Warning: <img> lacks "alt" attribute
line 484 column 63 - Warning: <img> lacks "alt" attribute
line 484 column 112 - Warning: <img> lacks "alt" attribute
line 484 column 162 - Warning: <img> lacks "alt" attribute
line 485 column 11 - Warning: <img> lacks "alt" attribute
line 495 column 15 - Warning: <img> lacks "alt" attribute
line 509 column 11 - Warning: <img> lacks "alt" attribute
line 510 column 22 - Warning: <img> lacks "alt" attribute
line 510 column 63 - Warning: <img> lacks "alt" attribute
line 510 column 111 - Warning: <img> lacks "alt" attribute
line 510 column 161 - Warning: <img> lacks "alt" attribute
line 511 column 11 - Warning: <img> lacks "alt" attribute
line 521 column 15 - Warning: <img> lacks "alt" attribute
line 528 column 411 - Warning: <img> proprietary attribute value "absmiddle"
line 528 column 411 - Warning: <img> lacks "alt" attribute
line 530 column 1052 - Warning: <font> attribute "color" had invalid value "ffff00" and has been replaced
line 531 column 1174 - Warning: <font> attribute "color" had invalid value "00ffff" and has been replaced
line 539 column 22 - Warning: <img> lacks "alt" attribute
line 539 column 63 - Warning: <img> lacks "alt" attribute
line 539 column 112 - Warning: <img> lacks "alt" attribute
line 539 column 162 - Warning: <img> lacks "alt" attribute
line 550 column 15 - Warning: <img> lacks "alt" attribute
line 557 column 488 - Warning: <img> proprietary attribute value "absmiddle"
line 557 column 488 - Warning: <img> lacks "alt" attribute
line 580 column 11 - Warning: <img> lacks "alt" attribute
line 581 column 22 - Warning: <img> lacks "alt" attribute
line 581 column 63 - Warning: <img> lacks "alt" attribute
line 581 column 111 - Warning: <img> lacks "alt" attribute
line 581 column 161 - Warning: <img> lacks "alt" attribute
line 582 column 11 - Warning: <img> lacks "alt" attribute
line 592 column 15 - Warning: <img> lacks "alt" attribute
line 602 column 456 - Warning: <font> attribute "color" had invalid value "ffff00" and has been replaced
line 603 column 578 - Warning: <font> attribute "color" had invalid value "00ffff" and has been replaced
line 611 column 21 - Warning: <img> lacks "alt" attribute
line 611 column 62 - Warning: <img> lacks "alt" attribute
line 611 column 111 - Warning: <img> lacks "alt" attribute
line 611 column 161 - Warning: <img> lacks "alt" attribute
line 622 column 15 - Warning: <img> lacks "alt" attribute
line 641 column 22 - Warning: <img> lacks "alt" attribute
line 641 column 63 - Warning: <img> lacks "alt" attribute
line 641 column 112 - Warning: <img> lacks "alt" attribute
line 641 column 162 - Warning: <img> lacks "alt" attribute
line 652 column 15 - Warning: <img> lacks "alt" attribute
line 669 column 22 - Warning: <img> lacks "alt" attribute
line 669 column 63 - Warning: <img> lacks "alt" attribute
line 669 column 112 - Warning: <img> lacks "alt" attribute
line 669 column 162 - Warning: <img> lacks "alt" attribute
line 680 column 15 - Warning: <img> lacks "alt" attribute
line 694 column 16 - Warning: <img> proprietary attribute value "absmiddle"
line 694 column 16 - Warning: <img> lacks "alt" attribute
line 694 column 59 - Warning: <img> proprietary attribute value "absmiddle"
line 694 column 59 - Warning: <img> lacks "alt" attribute
line 694 column 102 - Warning: <img> proprietary attribute value "absmiddle"
line 694 column 102 - Warning: <img> lacks "alt" attribute
line 694 column 145 - Warning: <img> proprietary attribute value "absmiddle"
line 694 column 145 - Warning: <img> lacks "alt" attribute
line 695 column 22 - Warning: <img> lacks "alt" attribute
line 695 column 63 - Warning: <img> lacks "alt" attribute
line 695 column 112 - Warning: <img> lacks "alt" attribute
line 695 column 162 - Warning: <img> lacks "alt" attribute
line 696 column 11 - Warning: <img> lacks "alt" attribute
line 706 column 15 - Warning: <img> lacks "alt" attribute
line 747 column 22 - Warning: <img> lacks "alt" attribute
line 747 column 63 - Warning: <img> lacks "alt" attribute
line 747 column 112 - Warning: <img> lacks "alt" attribute
line 747 column 162 - Warning: <img> lacks "alt" attribute
line 758 column 15 - Warning: <img> lacks "alt" attribute
line 774 column 44 - Warning: <img> proprietary attribute value "absmiddle"
line 774 column 142 - Warning: <img> proprietary attribute value "absmiddle"
line 774 column 246 - Warning: <img> proprietary attribute value "absmiddle"
line 783 column 25 - Warning: <img> lacks "alt" attribute
line 788 column 267 - Warning: <img> lacks "alt" attribute
line 768 column 17 - Warning: trimming empty <tr>
line 125 column 68 - Warning: <nobr> is not approved by W3C
line 141 column 68 - Warning: <nobr> is not approved by W3C
line 177 column 27 - Warning: <nobr> is not approved by W3C
line 207 column 27 - Warning: <nobr> is not approved by W3C
line 237 column 27 - Warning: <nobr> is not approved by W3C
line 263 column 27 - Warning: <nobr> is not approved by W3C
line 291 column 27 - Warning: <nobr> is not approved by W3C
line 317 column 27 - Warning: <nobr> is not approved by W3C
line 346 column 27 - Warning: <nobr> is not approved by W3C
line 374 column 27 - Warning: <nobr> is not approved by W3C
line 406 column 27 - Warning: <nobr> is not approved by W3C
line 439 column 27 - Warning: <nobr> is not approved by W3C
line 465 column 27 - Warning: <nobr> is not approved by W3C
line 500 column 27 - Warning: <nobr> is not approved by W3C
line 526 column 27 - Warning: <nobr> is not approved by W3C
line 555 column 27 - Warning: <nobr> is not approved by W3C
line 597 column 27 - Warning: <nobr> is not approved by W3C
line 627 column 27 - Warning: <nobr> is not approved by W3C
line 657 column 27 - Warning: <nobr> is not approved by W3C
line 685 column 27 - Warning: <nobr> is not approved by W3C
line 711 column 27 - Warning: <nobr> is not approved by W3C
line 763 column 27 - Warning: <nobr> is not approved by W3C
Info: Document content looks like HTML5
Info: No system identifier in emitted doctype
Tidy found 308 warnings and 0 errors!


The alt attribute should be used to give a short description
of an image; longer descriptions should be given with the
longdesc attribute which takes a URL linked to the description.
These measures are needed for people using non-graphical browsers.

For further advice on how to make your pages accessible
see http://www.w3.org/WAI/GL.
You are recommended to use CSS to specify the font and
properties such as its size and color. This will reduce
the size of HTML files and make them easier to maintain
compared with using <FONT> elements.

You are recommended to use CSS to control line wrapping.
Use "white-space: nowrap" to inhibit wrapping in place
of inserting <NOBR>...</NOBR> into the markup.

About HTML Tidy: https://github.com/htacg/tidy-html5
Bug reports and comments: https://github.com/htacg/tidy-html5/issues
Official mailing list: https://lists.w3.org/Archives/Public/public-htacg/
Latest HTML specification: http://dev.w3.org/html5/spec-author-view/
Validate your HTML documents: http://validator.w3.org/nu/
Lobby your company to join the W3C: http://www.w3.org/Consortium

Do you speak a language other than English, or a different variant of
English? Consider helping us to localize HTML Tidy. For details please see
https://github.com/htacg/tidy-html5/blob/master/README/LOCALIZE.md