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Old 02-06-2006, 19:44
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squareD squareD is offline
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Hello,

as announced in the last post, here a report of my efforts...

First the good message:
I found a working codenumber and I know the algo to generate it.

After tinkering for 8 weeks and more with no step foreward, I did something, what otherwise isn't my kind.

I knew, that there was a keygen for versions in 2004 and partly in 2005 by an unknown guy and I analysed his great work.

So I found out the very simple algo for generating a codenumber from ID.
Just two muliplications and one addition.
But I still could not reconstruct it in P-Code!

So I took good old Olly with a BP on memory access at first multiplication and traced a little bit.
All results of mathematical operations are shown in ST7...
No problem and very easy, but not the way to be proud.

So may I ask all P-Code gurus to teach me, how to get codenumber right out of WKT debugger.
Seems like results remain allways in Stx registers, because searching with WinHex in memory brought no success.

This is piece of code, where to find calculation in actual v1.4 of BewerbungsMaster 2006:

loc_6048CD: FLdRfVar var_208
loc_6048D0: MulVar var_1D8 1st multiplication
loc_6048D4: FLdRfVar var_22C
loc_6048D7: MulVar var_1F8 2nd multiplication
loc_6048DB: FLdRfVar var_218
loc_6048DE: AddVar var_23C addition
loc_6048E2: FStVar

Regards,
squareD
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