License Code sample - KiXtart.org - official site

You are not logged in. [Log In] KiXtart.org website » Forums » KiXtart » Lounge » License Code sample

Page 1 of 1

1

Topic Options

#164186 - 2006-07-11 10:08 AM License Code sample
Schuliebug Schuliebug Hey THIS is FUN Registered: 2002-01-18 Posts: 379 Loc: Netherlands	Hi there everyone, I'm looking for some sample code to use some sort of license to enable/disable parts of code i wrote. For example, i wrote an inventory tool which contains user/machine tabs but also a history & started apps tab. I would like to default enable the first two tabs but time-bomb or disable the last two. WWWWWWWW-XXXXXXXX-YYYYYYYY-ZZZZZZZZ meaning DDMMYYY or enable/disable (4 times, for each tab) could do that. Of course, the data should be encrypted and stored somewhere in a way that for users it is difficult to reverse engineer the real data. Does someone has an idea? _________________________ Kind regards,
Top

#164187 - 2006-07-11 11:55 AM Re: License Code sample
Radimus Radimus Moderator Registered: 2000-01-06 Posts: 5187 Loc: Tampa, FL	the simplest thing I can see to do is to make a reg value somewhere that is unlikely to be found... Like somewhere in HKEY_CLASSES_ROOT\CLSID\ and just write a key that incr on each use of course that could be regsnapped, but that is few and far between. are you going to crypt the code so the app itself isn't decompiled... that is the most likely avenue _________________________ How to ask questions the smart way <-----------> Before you ask
Top

#164188 - 2006-07-11 12:51 PM Re: License Code sample
Schuliebug Schuliebug Hey THIS is FUN Registered: 2002-01-18 Posts: 379 Loc: Netherlands	I was thinking of some Rot13/Base64 combination of decryption code. So: kiX32 code, Rot13 over it and than Base64. Or does anybody has an idea how to implement such feature? Maybe tokenizing could be used for the app itself... _________________________ Kind regards,
Top

#164189 - 2006-07-11 09:49 PM Re: License Code sample
Glenn Barnas Glenn Barnas KiX Supporter Registered: 2003-01-28 Posts: 4403 Loc: New Jersey	If you tokenize the code, you could encode the license info in an obscure reg key as Rad suggests. I posted a code/decode UDF a while back that would work for you. It should sufficiently obfuscate any registry entry you make. You can even use part of the timestamp of the file for a key value for the encoding. This way, if anyone manipulates the file, it will not decode the key properly. Look at the CODEC UDF Glenn _________________________ Actually I am a Rocket Scientist! $\:D$
Top

#164190 - 2006-07-12 05:49 AM Re: License Code sample
Sealeopard Sealeopard KiX Master Registered: 2001-04-25 Posts: 11165 Loc: Boston, MA, USA	Even better would be to use KiXcrypt or ASE to encrypt the complete package that would consist of a license script and the main script. The license script fires off first, sets a variable in the main script to the appropriate value via READLINE/WRITELINE to enable/disable features, then tokenizes the main script. Thus, the license itself is now embedded inside the tokenized script. _________________________ There are two types of vessels, submarines and targets.
Top

Page 1 of 1

1

Previous Topic

Previous Topic View All Topics

View All Topics

Index Next Topic

Next Topic

Moderator: Arend_, Allen, Jochen, Radimus, Glenn Barnas, ShaneEP, Ruud van Velsen, Mart

Hop to:

Shout Box

Who's Online

0 registered and 837 anonymous users online.

Newest Members

fgarcia, Viginette, ManuvdWielNL, Sir_Barrington, batdk82
17889 Registered Users

Generated in 0.125 seconds in which 0.103 seconds were spent on a total of 12 queries. Zlib compression enabled.

click tracking