Anyone know what type of encryption they are using, checkout, vendor defined?

user defined crypt filters. Watch lc_set_attr
and you'll see what I mean.

I'm working on an essay for this.

NB, I look forward to your essay. I've been working on a target that has a 30-day trial limit imposed on it with FlexLM. I found out that even IF I am able to generate a new license.dat file it is still crippled to some degree, but the actual target itself is no longer my primary goal. Instead I have this need to just figure out how to do it (gen a new license file).

I read your essays as well as those by Pilgrim and VoxQ(?) and Dan(?) - everything I could find at Fravia basically. The target I'm working on uses FlexLM version 7.0 and Globetrotter has no developer downloads available for v7. Is there a repository somewhere to get older versions of their libraries, source examples, DLLs, etc.? I see how the different versions of FlexLM are evolutionary and how many techniques from one version are still applicable in newer versions. I found lc_init and lc_sg statically linked inside my target (thanks to the essays) but I have no idea what other routines like lc_checkout look like when disassembled. Also looking for genkey or genkey32 utilities. Not sure if these are Globetrotter utils or if they are developed by the community.

Thanks for all the good work.

Certain targets (most notably the MAPLE trial) are disabled in some way, and the
relevant routines are missing, and the DLL's
are a special version for the trial, so getting
a full working version from the trial is not
possible.


If you look at zencrack2.cjb.net, I believe
that Crackz' has much of the relevant kits/tools
available.



Hmm - I think genlic is supplied by Globetrotter, but really lmcrypt is the
tool of choice for generating licenses.


--nb.

Maple. LOL! You must be a mindreader!

Thanks for the response. I happened upon CrackZ's page a couple of hours ago. I had bookmarked it weeks ago but whenever I need to find out something I seem to automatically go to the search engines without reviewing my bookmarks. Gotta stop doing that. Thanks again for the response. That site is definitely one of, if not THE best FlexLM site for reversers.