Rockband Editing / Customisation

**TehBanStick** · Joined: 06 Dec 2006 Posts: 2709

Grr.
The numbers match, but yet I cannot rehash the new CON.

Only thing I can think of is that I used a modified Highway Star CON header (and footer thing)
Its so frustrating because I know that I am so close to getting this.
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**xorloser** · Joined: 06 Mar 2008 Posts: 68

As I thought rockband has hashes for all the exported midi files (as well as the midi files on he disc). The hash is an sha1 over the entire file. These hashes are stored inside the main xex file and so cannot be altered.

I have not confirmed that these hashes are used yet (although I assume they are). Also I do not know what would happen if you tried to used a midi filename that it does not know about yet, but I assume it would be the same as trying to use a file with an incorrect hash.

It looks like this could stop the ability to use custom songs on xbox360 (although rockband1 had these hashes in place but did not check them! hehe)

.data:82A04AE8 82 00 8E C8 export_file_hashes:.long str__29fingers_ # "29fingers.mid"
.data:82A04AEC B9 97 EA 4B+ .byte 0xB9, 0x97, 0xEA, 0x4B, 0xA3, 0x9D, 0x85, 0x46, 0x23, 0x12, 0x59, 0xFF, 0x60, 0xB6, 0x20, 0x87, 0x28, 0xA8, 0x49, 0x94# field_0
.data:82A04B00 82 00 8E B0 .long str__Areyougonn # "areyougonnabemygirl.mid"
.data:82A04B04 A6 AB 23 32+ .byte 0xA6, 0xAB, 0x23, 0x32, 0x4C, 0x54, 0xEA, 0x1D, 0x1A, 0xC6, 0xD, 0xD3, 0xEF, 0x61, 0x45, 0x55, 0xF8, 0xEA, 0xA7, 0x16# field_0
.data:82A04B18 82 00 8E 9C .long str__Ballroombl # "ballroomblitz.mid"
.data:82A04B1C 5E 5D 84 7D+ .byte 0x5E, 0x5D, 0x84, 0x7D, 0xB4, 0x3D, 0xEC, 0x46, 0xB3, 0x9C, 0x5C, 0x66, 0xBE, 0x65, 3, 0xC8, 0xFE, 0x9B, 0xA9, 0x4B# field_0
.data:82A04B30 82 00 8E 88 .long str__Blackholes # "blackholesun.mid"
.data:82A04B34 01 D8 2B D2+ .byte 1, 0xD8, 0x2B, 0xD2, 0xBA, 0xC7, 0xE3, 0x81, 0xFF, 0xD1, 0x40, 0x82, 0xBE, 0xD7, 0x1A, 0xE6, 0, 0x92, 0x54, 0x94# field_0

**xorloser** · Joined: 06 Mar 2008 Posts: 68

Compared with previous games Rockband2 actually uses a decent system to protect it's songs. On the Xbox360 version there are 5 layers of encryption!

1) Xbox360 hypervisor decryption of key1. This does a decrypt in the secure section of the xbox360 using an internally generated key which never sees the light of day. This is done in such a way that only a trusted xbox360 should be able to perform the decryption.

2) Bit-swapping and bit-manipulation of key2 as part of the mogg loader code.

3) A dynamically created text based script that is parsed by the scripting engine in the game in order to do a multitude of transformations over the key2 data.

4) A xor between the generated key1 and key2 to produce the final and actual key used to decrypt the file using AES.

5) Even once the file has been decrypted it is still not a valid file since standard parts of it have been altered. These need to be reverted to their standard form in order to use the file.

The result is a file that is the same as from Rockband1, ie a multi-track ogg file. Thanks to the rockband2 coders for putting forward a good challenge

**xorloser** · Joined: 06 Mar 2008 Posts: 68

ArkTool v7 now released on my site: http://www.xorloser.com

If you find it useful please consider donating by clicking the button at the top of the webpage.

enjoy

**omare** · Joined: 27 Sep 2008 Posts: 31

Are you a guy? I think i'm in love.

Thanks alot! Donation coming when I've tested the tool! :-)

**Teancum** · Joined: 25 Jun 2007 Posts: 437

Ditto. I can't give much, but I'll donate some!

**topaviator** · Joined: 18 Aug 2007 Posts: 319 Location: Remus, MI

i have a question i was over at the FoF forums and saw that you can download the full song and.mid file from there to use in Frets on Fire
now how the heck would they get those .mids? re-chart it all by hand?
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**TheGlow** · Joined: 18 Feb 2006 Posts: 2748 Location: J Train Brooklyn!

Isnt there a way to turn a multi ogg into an mp3 with audacity or something?
Are the moggs exported enough for some higher quality versions of the songs?
Cuz some of these tracks just seem alot crisper than legit albums, like Ramblin man.

**topaviator** · Joined: 18 Aug 2007 Posts: 319 Location: Remus, MI

**kevnin** · Posted: Fri Oct 03, 2008 12:10 am Post subject:

let's NOT get this thread locked.

stop discussing anything related to the FoF forums and their downloads.

stop discussing mixing down mogg's to mp3's

both of those aren't allowed on this forum and i'd like to keep discussion on things that actually matter (customs) allowed.

**omare** · Joined: 27 Sep 2008 Posts: 31

**kevnin** · Posted: Fri Oct 03, 2008 3:28 pm Post subject:

**DarkfalzGodkillr** · Joined: 19 Oct 2007 Posts: 96

Nope, its been removed

Anyone who downloaded it mind sharing it?

**TheGlow** · Joined: 18 Feb 2006 Posts: 2748 Location: J Train Brooklyn!

Nah, click it and it 404's. *shrug*

**thepoop555** · Joined: 16 Sep 2007 Posts: 316 Location: Austin, TX

luckily enough i got it quick enough before he took it down. Also seems like he took down 6.1 too... I would upload it/them for you guys, but I can't give out the link. Eh...
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