Author Topic: Nintendo 3DS Decrypted Numbered DAT (Untrimmed + Trimmed Roms)  (Read 10147 times)

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Offline b2071988

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Re: Nintendo 3DS Decrypted Numbered DAT (Untrimmed + Trimmed Roms)
« Reply #15 on: February 10, 2017 - 07:15:05 »
Fixed 1647... got a private dump of the rom (got it before it was added to the no-intro DAT) which had a gateway header attached which I didn't clean.
Cleaned the header off my rom, it matches the encrypted rom in the no-intro dat, so I have re-decrypted it, new hashes below (also fixed the DATs in 1st post)

1647 - Poochy & Yoshi's Woolly World (USA)

DECRYPTED TRIMMED:
Size: 0.99 GB (1,063,575,552 bytes)
CRC32: e39c3a50
MD5: 902dcfdb26f9c3bcfd76a250f421ef2e
SHA-1: 3d5522987ccf67d7c42453e5e203f233bd005e83
SHA-256: a47e9eee2d3e72a5311070a78d388f94e2d479dbe1635b659d45bd961df52d11

DECRYPTED FULL:
Size: 2.00 GB (2,147,483,648 bytes)
CRC32: 2a5a8388
MD5: b2eb8128ba0c9ba0d393d419dfca9216
SHA-1: b9ce372e79037d20ca57b0952ce1a974dbe58f55
SHA-256: cf48bb02f9e8dbe419a7f88486ef91c7c0553af1ec0d0342be9ff7a2fe144634


« Last Edit: February 10, 2017 - 07:18:19 by b2071988 »

Offline retaliator

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Re: Nintendo 3DS Decrypted Numbered DAT (Untrimmed + Trimmed Roms)
« Reply #16 on: March 21, 2017 - 05:06:53 »
Will there be a new datfile soon? ;)

Cheers
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Offline KillingJoke

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Re: Nintendo 3DS Decrypted Numbered DAT (Untrimmed + Trimmed Roms)
« Reply #17 on: March 24, 2017 - 14:26:01 »
@b2071988

Is there a way to generate Additional DATA (for example n3DS - 0005 - 80AExxxxxx.*) usign a PC and a encrypted rom?

TIA
KJ

Edit: A better read [You are not allowed to view links] Register or Login gave me the answer :(
« Last Edit: March 24, 2017 - 14:33:02 by KillingJoke »

Offline RodrigoMD

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@s4nQy29A:
1. Yes, I still have the trimmed decrypted set (uncompressed), making a patch from 'encrypted to decrypted' would be the same size as the rom itself.
If we had the decryption keys we could decrypt the rom using a computer. (two of the three keys rom decryption have been found)
The Pokemon Sun Rom used the exact same RomFS between region (which is the majority of the rom) same with Pokemon Moon.
The only thing that changes is the update partitions, game manual and the rom header, which are all fairly small (~50mb total)


2. Untrimmed roms are padded with FF's to make the size match the 'rom chip size'
(for 3DS the 'rom chip sizes' are 128mb, 256mb, 512mb, 1gb, 2gb or 4gb)
Trimming just removes this extra un-needed 'padding' data, it can easily be restored.
I have a program called Rom_tool which shows "CTR_Toolkit - CCI Tool Version 3.1 (C) 3DSGuy 2013" when I run it.
I use that to trim and untrim roms, I'm unsure of where I got it from. The command line usage is fairly simple:
Batch file to trim all 3ds roms:
Code:
Only registered users can see contents. Please click here to Register or Login.Batch file to untrim all 3ds roms:
Code:
Only registered users can see contents. Please click here to Register or Login.
I don't really see a point in keeping the padding in decrypted roms, but if you really want it you can easily restore it.

I used the "rom_tool" program and the "restore" process did not work.

-r option:

[ + ] Restoring CCI
   [!] Invalid File handle
   [!] Failed to Restore CCI
   [!] Failed

-i option:

[ + ] CCI Image Details
 Media Type:            CARD1
 Media Size:            128 MB (1 Gbit)
 CCI Data Size:         75 MB (0x4b19000 bytes)
 CCI File:
  > Size                75 MB
  > Status              Trimmed
 Additional Device:     EEPROM
 Partition Count:       2
 Save Crypto:           2.2.0-4 KeyY Method
[ + ] CXI Partition
 Product Code:          CTR-N-JEGP
 Company Code:          00
 Unique ID:             0108a
 Build Type:            Release
 SDK Version:           5.2.2 Release
 Req. Kernel Version:   2.36-0
[ + ] CFA Partitions
 E-Manual:              Yes
 DLP Child:             No
 Update Data:           No
[ * ] Completed Successfully


The NDSTokyoTrim program was used for the trimmer.

Offline SCO

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Re: Nintendo 3DS Decrypted Numbered DAT (Untrimmed + Trimmed Roms)
« Reply #19 on: June 18, 2017 - 00:24:26 »
Should already be official, especially now that Retroarch has citra support (they use no-intro dat to populate the playlist... trouble is, citra can only run decrypted 3ds).