Decrypting a save file

capo_2k · April 26th, 2012, 19:07

So, does anyone know how to do this? Here are 5 saves that I picked at random from a game, and I'd like to have a mess around with it, but I'm not sure how to decode the data. It's encrypted in some way and I'm not sure how to figure out what method to use to decode it.

Can anyone shed any light on this?

Attached Files

randomlegendofgrimrocksaves.zip (488.7 KB, 1 views)

capo_2k · May 1st, 2012, 18:33

Obviously no-one cares, but I got it decrypted (or should I say decompressed) in the end. It's zlib with a 12-byte header.

**SCHUMI_4EVER** · May 1st, 2012, 20:07

I don't think it's that no one cared, it's more that no one knew. I mean I didn't come across anything mentioning save could be edited when I was looking for ways to cheat in the game.

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The Champ has retired but may his Legacy live on FOREVER !!!!

No$GBA DS FAQ 2.0

Get it right fools! The glass is HALF-EMPTY, not half-full!!!

!!! WARNING: Emulation requires a brain !!! WARNING: Emulation =/= Piracy !!!

Mad · May 2nd, 2012, 00:49

How did you find out what was the compression scheme?
I always wanted to know how to do that stuff.
You opened the files with some hex-editor?

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Fadingz · May 2nd, 2012, 15:53

Make two saves with slight difference (ie. money) and compare the differences.
Difference can mean either money or time stamp in most cases.
or regenerated health and stat.

Why even edit the save files? just edit your memory with memory watch if you want to cheat lol.

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May 1st, 2012, 18:33	#2
capo_2k Registered User Join Date: May 2008 Location: - Posts: 975	Obviously no-one cares, but I got it decrypted (or should I say decompressed) in the end. It's zlib with a 12-byte header.

May 1st, 2012, 20:07	#3
SCHUMI_4EVER Hackin 'n Slashin Join Date: Jan 2007 Location: Most-expensive-Internet-on-the-Planet Land : South Africa Posts: 26,399	I don't think it's that no one cared, it's more that no one knew. I mean I didn't come across anything mentioning save could be edited when I was looking for ways to cheat in the game. __________________ Intel Core2Quad Q9550 (2.83Ghz stock) \| ASUS P5Q \| 2x2GB Transcend JetRam DDR2-800 \| ASUS ENGTX260\HDTP\896M \| Windows Vista Home Premium 64bit SP1 The Champ has retired but may his Legacy live on FOREVER !!!! No$GBA DS FAQ 2.0 Get it right fools! The glass is HALF-EMPTY, not half-full!!! !!! WARNING: Emulation requires a brain !!! WARNING: Emulation =/= Piracy !!!

May 2nd, 2012, 00:49	#4
Mad AKA snkmad Join Date: Apr 2001 Location: Brazil, Fortaleza-Ceará Posts: 4,030	How did you find out what was the compression scheme? I always wanted to know how to do that stuff. You opened the files with some hex-editor? __________________ Main PC:Win 7 SP1 PRO X64 - Asus P5G41C-M LX - Intel Q6600@2.4Ghz - OCZ 2x 2GB DDR2 1000Mhz - Sapphire Vapor-X HD5770 1GB GDDR5 - 19" LCD SyncMaster T190 - Samsung SATA II HD322HJ 320GB HTPC:Acer Aspire AR1600 - Windows 7 PRO X86 - Atom 230@1.6Ghz - 3GB DDR2 800Mhz - Nvidia ION LE - SATA II WD 160GB + Seagate GoFlex Desk 2TB USB 3.0 Notebook:Dell Inspiron 14R N4110 - Windows 7 SP1 PRO X64 / Ubuntu 12.04 X64 - Intel Core i5 2410M@2.3Ghz - 8GB DDR3@1333Mhz - Intel HD 3000 - WDC SATA II 640GB + SSD Kingston V200 128GB +WD Scorpio Blue 320GB USB 3.0 CASE

May 2nd, 2012, 15:53	#5
Fadingz 代言人 Join Date: Dec 2006 Location: 應許之地 Posts: 7,056	Make two saves with slight difference (ie. money) and compare the differences. Difference can mean either money or time stamp in most cases. or regenerated health and stat. Why even edit the save files? just edit your memory with memory watch if you want to cheat lol. __________________