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View Full Version : Forza 4 "ForzaProfile" Decryptor and Encryptor tool



mojobojo
10-11-2011, 04:48 PM
I stayed up all night, and with the combined minds of me and fairchild the dreaded Forza 4 encryption and hashing has been conquered!

I give you guys the tool and code to do it. Have fun and stay out off trouble.
http://gyazo.com/afccb4a07b424f9f84e69935c0e5a302.png

You must I repeat YOU MUST give your PROPER Profile ID or else it WILL NOT encrypt and decrypt properly. Also, make backups, you have been warned.

XB36Hazard
10-11-2011, 05:20 PM
I stayed up all night, and with the combined minds of me and fairchild the dreaded Forza 4 encryption and hashing has been conquered!

I give you guys the tool and code to do it. Have fun and stay out off trouble.
http://gyazo.com/afccb4a07b424f9f84e69935c0e5a302.png

You must I repeat YOU MUST give your PROPER Profile ID or else it WILL NOT encrypt and decrypt properly. Also, make backups, you have been warned.
Thanks. I knew you could do it. :bigsmile:

BrayWyatt
10-11-2011, 05:45 PM
cant wait for an editor to come out.

kill_seth
10-11-2011, 07:50 PM
I have a question. I can see that this decrypts the data, but does it also fix the checksum/checksums?
I'm not even sure if there is any, but I would assume there is.

fairchild
10-11-2011, 08:02 PM
I have a question. I can see that this decrypts the data, but does it also fix the checksum/checksums?
I'm not even sure if there is any, but I would assume there is.

Yes this also fixes the checksums.

kill_seth
10-11-2011, 08:05 PM
Yes this also fixes the checksums.

Dope! Thanks for all your hard work guys!

ScarfaceSlaughter
10-11-2011, 09:30 PM
I hope the editors will soon, can wait come out

kill_seth
10-11-2011, 10:25 PM
Another question. I extract the ForzaProfile then decrypt it and then I encrypt the file.
Problem is that the size doesn't match that of the extracted ForzaProfile.

Extracted ForzaProfile = 20.0KB - Decrypted ForzaProfile = 6.16KB - Encrypted ForzaProfile = 6.16KB

I would think the Encrypted ForzaProfile could be the same size as the Extracted one.

mojobojo
10-11-2011, 10:33 PM
Another question. I extract the ForzaProfile then decrypt it and then I encrypt the file.
Problem is that the size doesn't match that of the extracted ForzaProfile.

Extracted ForzaProfile = 20.0KB - Decrypted ForzaProfile = 6.16KB - Encrypted ForzaProfile = 6.16KB

I would think the Encrypted ForzaProfile could be the same size as the Extracted one.

That is okay, the rest is just null padding. it gets ignored. It didn't make a difference when farchild or I used it.

kill_seth
10-11-2011, 10:34 PM
That is okay, the rest is just null padding. it gets ignored. It didn't make a difference when farchild or I used it.

So it should be fine when overwriting the file entry?

xI cHOcOLaTe
10-11-2011, 10:36 PM
I stayed up all night, and with the combined minds of me and fairchild the dreaded Forza 4 encryption and hashing has been conquered!

I give you guys the tool and code to do it. Have fun and stay out off trouble.
http://gyazo.com/afccb4a07b424f9f84e69935c0e5a302.png

You must I repeat YOU MUST give your PROPER Profile ID or else it WILL NOT encrypt and decrypt properly. Also, make backups, you have been warned.

Legit :3. Thanks mojo n_n

mojobojo
10-11-2011, 10:42 PM
So it should be fine when overwriting the file entry?

Yes, I never had a problem with it. If you do just add the null padding back.

sh042067
10-11-2011, 10:47 PM
;) Thanks a ton for this!

kill_seth
10-11-2011, 10:48 PM
Yes, I never had a problem with it. If you do just add the null padding back.

Could you point me in the right direction to get it back? I edit the file entries weird but it seems to work for me.
I overwrite the stream so if I don't have the same file size it's going to end up messed up.

Genesis
10-11-2011, 11:21 PM
Nice if only i fully new how to use ASM:(

sh042067
10-15-2011, 11:13 PM
Once again, nice job on this. Just wondering, has anyone else been unable to decrypt the PlayerDatabase files? I have. Not sure why, but it must have some kind of different method. I really didn't think so because it was the same magic, and the length of the encrypted data was at the same location as the ForzaProfile, but it just doesn't seem to be working... Does anyone think they can take a look at it? Thanks :)

naddel81
10-16-2011, 10:24 AM
decrypted and tried your newest (1.0.2.0) modder but I get this

http://www.abload.de/thumb/forza4cupx.jpg (http://www.abload.de/image.php?img=forza4cupx.jpg)

That does not relate to my save. I am only on lvl 14, not 150. How come?

I just want to max my credits :(

EDIT: Guess the tool wants the encrypted file :)

naddel81
10-16-2011, 10:39 AM
I just figured out how to mod my forza 4 profile using mojobojo's great de/encryption built in in his newest Forza 4 modder 1.0.2.0! THANKS SO MUCH!
With the standard horizon tool I could extract and later inject the modded file without a notch!


But there are 2 things I'd still like to know from you pro's:

1. Why is Modio so hated in the scene?

2. How to decrypt the photos made in Forza 4? I can get them extracted, but I cannot open them in Photoshop (i.e.).

Best wishes!

hemlock
11-04-2011, 09:08 PM
Great job thanks for this

Lzkiee
10-26-2013, 11:06 PM
Yes, I never had a problem with it. If you do just add the null padding back.

Sorry to bump. How do you add the null padding to the file? Sorry I'm new to modding and such like this.

Skimmertex
12-16-2015, 01:23 AM
Thanks man