Re: Shareware licensing

From: Veign (NOSPAMinveign_at_veign.com)
Date: 02/26/05 

Date: Sat, 26 Feb 2005 13:05:21 -0500

>> Locks only stop honest people anyway.

That's the key right there... 

-- 
Chris Hanscom - Microsoft MVP (VB)
Veign's Resource Center
http://www.veign.com/vrc_main.asp
--
"BT3" <honeypot@epmctc.com> wrote in message
news:7C2Ud.91018$GT.7199@okepread01...
> right.  Anytime the code gets into somewhere "significant", it stops to
ask
> a function if to decrypt part of the Key to see if it is allowed.
Sometimes
> that is, other times it uses code built right into the already executing
> code.  Both crackeable, sure, but not without intending to per say.
>
> I do user rights verification much like Novell does.  A database that
> contains object rights, etc.  That makes the code a bit more tedious to
get
> around, but sure, still do-able.
>
> Locks only stop honest people anyway.
> And no, I didn't know that about the function names.  I don't hack much
> anymore.  Short of the occasional, been maybe 20 years or so.
>
> BT3
>
> "Veign" <NOSPAMinveign@veign.com> wrote in message
> news:ueg5hDCHFHA.3612@TK2MSFTNGP09.phx.gbl...
> > Really doesn't matter how complicated your Key is.  What the cracker
will
> do
> > is just provide a NOP in place of your jump routine and set any internal
> > flags to succeed - pretty simple using an program like OllyDbg...
> >
> > Did you know that VB EXE's store the original function names as a
comment
> of
> > the assembly code?  Crackerz will first look for funcition names that
give
> > things away - like IsRegistered..
> >
> > -- 
> > Chris Hanscom - Microsoft MVP (VB)
> > Veign's Resource Center
> > http://www.veign.com/vrc_main.asp
> > --
> >
> > "BT3" <honeypot@epmctc.com> wrote in message
> > news:7jUTd.90979$GT.10199@okepread01...
> > > I wrote my own "Key" pattern.  Good luck figuring it out, but like any
> > > other, it has a weakness.  Make the most complicated key in the world,
> and
> > > integrate it into your entire app, but where and how do you store it?
> > > There's always a way.
> > >
> > > BT3
> > >
> > > "Elmo Watson" <sputnik@nospamYahoo.com> wrote in message
> > > news:%23W6QgX4GFHA.3272@TK2MSFTNGP10.phx.gbl...
> > > > I've been looking at Shareware licensing apps and solutions -
> generating
> > > > license keys, etc - -
> > > > In particular - Visual Protect
> > > > has anyone had any experience with this product?   feedback?
> > > >
> > > > Plus - if you have any that you swear by - I'd like to know - - too
> much
> > > > information to sort through, using Google - thought I'd try to
compile
> a
> > > > short list here - - by your recommendations.
> > > >
> > > > thanks
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> >
> >
>
>

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