pcmhacking.net

Here we go. Supplier specific security tables.

viewtopic.php?f=4&t=5876#p87660

I've got a different module I'm working on that doesn't conform to any of the known algos either. So I'm in the same boat as ironduke.

Gatecrasher wrote:Here we go. Supplier specific security tables.

viewtopic.php?f=4&t=5876#p87660

I've got a different module I'm working on that doesn't conform to any of the known algos either. So I'm in the same boat as ironduke.

Post up the seed and key here, might have better luck than I, lol..

Pretty sure he already went and purchased a new one, my need is done.. Fun to stir up the pot though.. Kinda bummed out this ecu isn't one of the known algo's..

Actually there is 3 tables. 3rd was never used as far as I know.

First leaked table changed design at some point and only the first 60 or so algo are valid.

So you need to find updated table1 and table2. I think I have them on file somewhere. If anyone is interested send me a pm.

So I've been using the GMSeedKey.exe tool that I downloaded from this site. It's got three options. GMLAN, Class2, and Other. Are those the three tables you're talking about? I've had a lot of luck using GMLAN. I decided to make another pass at this video processing module using the 'other' table and I found a key that worked. (Algo 5C). Dunno if it's actually correct, or just a happy coincidence. I'll probably only ever use it once, so it's really just academic at this point.

None of the E37 seed/key pairs posted in this thread worked in that tool though.

It could be using the non updated table1 which is valid till some algo number.

Which years that e37 is being used. Anyone got sps files for that pcm.

These are all the details for those 4 seed-key details.... pretty sure there all stock CVN's so from 2008 to 2012 as a minimum

Hmm... its too old to be using dedicated online databases that the GM 5byte stuff does, so its definitely having to run through a calc.

Ok, time to mess with this. Going to attack to the SPS session and debug where the hell its pulling the key.
This is the first time I have never been able to calculate.. so to say I am intrigued is an understatement.

If it helps & you want to see any of those files in raw binary let me know

I finally found the reference to the two security tables. There was an update to GMs programming utilities in 2008. There's an 'Interpreters April 01 2011" document floating around on the internet that has this statement:

To allow for more than 256 unique GM Security Alogorithms, a second “Security Table” (GMLAN-1) has been created (see the high nibble of AC2). All previously existing GM Security Algorithms will be referenced to the first “Security Table” (GMLAN-0). So now for new GM Security Algorithms, the user needs to know the algorithm number as well as the corresponding GMLAN “Security Table” number (either 0 or 1).

If you pull the utility file from SPS, it'll tell you exactly which table and algo to use.