Re: Gm Seed key algorithms
Posted: Sun Oct 04, 2020 3:23 pm
I think your right, I also found this was a bug in pcmhammer. https://github.com/LegacyNsfw/PcmHacks/ ... b23243a7ee
Electronic Fuel Injection - Developement & Tuning
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Test against the dll ...mattyjf01 wrote:I Only Have a GMLAN (Ve) to test on at the moment and none of the Algorithms have used the 2A Function
Sorry. Family things took my attention since I posted that. And I agree. There are likely multiple ways to go about everything. Some graceful, some not so much. The problem is that I don't want to be taught everything, but that people are mostly unwilling to share or teach ANYTHING. I have figured out a few thing, but nothing that is leading to a full-blown solution to the issue. Part of that absolutely stems from my lack of experience/knowledge working with these computers, bitwise operations, and finding very little in terms of info on where I would even start. Like, for me, a good starting place from what I deduce would be a few tutorials on IDA. That would help a great deal (just primers, really. Once I understand the basics I should be good, but the stuff I find just doesn't grab me, again most likely because of my dearth of knowledge regarding this area. But yeah. Don't want fish. Don't want to be taught everything about fishing. Just helps to learn how to bait a hook from someone that knows how, if that makes any sense.antus wrote:Mdi or mdi 2 is the newer tool but it'll get expensive. Keep thinking, there is no one and only way. Nobody can teach or tell you everything. You will find the more you know it keeps getting harder to go deeper.
antus wrote:That is correct. I believe it involves AES encryption, so once you figure out the general algorithm you still need a way to get the keys. Unfortunately we cant and wont help obtaining these things.
Personally I emulate responses to auto generate keys on command with requests to/from my server to my customer software. I imagine this is how some tuning companies are doing this, especially with the new 32byte key rolling out and rolling seed/key options.gmtech825 wrote: yeah, I figured if it was that easy it would have been figured out by now. it wouldn't surprise me if these companies are "unlocking" these ECM's by obtaining the key the same way I did, and aren't actually opening them up.