Xbox Live HDD-check - Interesting stuff from Team SmartXX

rms2001 · #1 08-03-2004, 06:49

Quote:

xboxlive2.bin is the new HDD change-detecting code, whose disassembly was released by SmartXX. You can disassemble it again to verify that it is the same as what SmartXX released yesterday.

sigcheck.c checks the signature on the file. It can be compiled with something like this in Linux or Cygwin (the math library GMP is required):
gcc sigcheck.c -lgmp -o sigcheck

To run it, you need xboxkrnl.exe (or xboxkrnl.img) from a retail ROM. This is to remain legal - it's not a good idea to put the public key literally in a released file. The program will extract the public key from the EXE. To get this file, just use xbflash or xbtool.

./sigcheck xboxkrnl.img xboxlive2.bin
It will then tell you if the signature passed.

The reason I provided source code is so that it can easily be audited as being correct.
BTW, those looking for the XDK code that executes this: Look for places that call XcVerifyPKCS1Signature. Xbox Live games call it in two places, and one is the one you are looking for.

AXmichigan · #2 08-03-2004, 20:06

man i think someone should requote this in a new thread
wouldnt u say that tyler?

Quall999 · #3 08-03-2004, 20:17

After I saw that, I was thinking about how much bussiness they would lose if they started to ban people.. Im just glad I chose a monthly fee, and not anually.

AXmichigan · #4 08-03-2004, 20:24

yea thats true
also im glad theres an xbconnect
man
microsofts goin down the sh*thole now
maybe the loss of that dude was a big thing..

TylerDurden · #5 08-03-2004, 21:42

Quote:

Originally posted by AXmichigan
man i think someone should requote this in a new thread
wouldnt u say that tyler?

Im all for it buddy.

Tyler!

AXmichigan · #6 08-03-2004, 21:48

hehe

rms2001 · #7 09-03-2004, 08:33

...

I logged into my XBL account for a good 8 hours yesterday while I was off getting things down in town. Turned it off when I got home and headed right for bed.

Woke up and was still able to log in to Live... I'm wondering if this mite just be a way to scare some people into not having a modded XBox.

AXmichigan · #8 09-03-2004, 14:54

dude y do u still use xbox live?
ive always refused to
i think xbconnect is the way to go
no hassles
and its freee

rms2001 · #9 09-03-2004, 22:57

I never paid a dime for XBL. I rented three Live games and I guess no one else had rented those three. They still had their two month free cards in them. So I just kept the cards.

Quall999 · #10 10-03-2004, 03:56

I use xbl simply because the the link software isn't too popular. Evertime I go on, there is just halo. I'm not saying that's bad, but I can only play soo much.