Flex LM and ECC
 

Well, I'm back and hello to everybody. Since that talk to dynio I slightly increased my knowledge about public key crypto and, therefore, I'm having a lot of questions. One of them touches Flex LM v9+.
My dear Tom, if you are here, probably, you'll be able to help. Suppose I'm having a file that contains something like

SIGN="192B C3C0 2B49 3043 7880 996A 0A91 \
3E5F E270 B404 CBE0 4A51 A5C8 4DD9 CF27 1924 411B C2AD 7554 \
82F1 4BE9 9752 CD2A 771D 682A D838 8FB4 AABA DBCD FBF2"
\

It means, ECC was used. As far as I'm concerned, there was a bug in PRNG in the previous versions (that reminds the situation with Armadillo, he-he) but now the hole is cleaned. Are there any chances to remove the protection by issuing a valid lic-file or I can do a patch only?

Hi,

AFAIK, patching is the only way. Check h**p://66.98.132.48/crackz/index.html for ECC patching tool.

Tom

for ECC patching tool

What is it? There are many tools on that page...

h**p://66.98.132.48/crackz/Tools/Flexeccpatch.zip

Tom

Hi volodya;

Haven't spotted a "patching" tool there yet, but have you seen this:

http://www.woodmann.com/crackz/Tutorials/Flexecc.htm

Yep. Tom324 listed it, while I was still looking. :D

Regards,

Hi volodya,

Another option is to force an old-style (i.e. license-key as opposed as sign=) checkout (essay also available at crackz site). This involves patching as well but allows to use a valid old-style licence. This avoids to allow the checkout of any feature. (usefull if the target tries to checkout a demo feature).

Regards,

Next7