Dll tool license key serial how to#
Dll tool license key serial install#
Dll tool license key serial serial#

It is possible to save it in the registry. For simplicity, we save the software key in an вЂњiniвЂќ file. At this point, the customer can use our component вЂњ protected_comp.exeвЂќ.

Dll tool license key serial install#

On receiving the вЂњsoftware keyвЂќ, the customer has to install it in the file вЂњ protected_comp.iniвЂќ. We will introduce some possible techniques in the following sections.ДЄfter generating the вЂњsoftware keyвЂќ, we need to send it to the customer.

Dll tool license key serial serial#

Moreover, it is possible to use other data than the MAC address as a seed (F.Y.I., CPU identifier, Windows serial number, etc.), but our choice seems to be easier and quite general. In order to improve protection, more complex algorithms should be used. Note: In the code provided with this article, functions f and g are just simple permutations of the MAC address. We can view the machine code generation as the application of a function f to the MAC address: Substantially, this signature is obtained using the MAC (Medium Access Control) address (i.e., usually an Ethernet address) as a seed. This вЂњmachine codeвЂќ can be viewed as a signature of the machine in which the tool вЂњ softwarekey_customertool.exeвЂќ has been run and in which the вЂњ protected_comp.exeвЂќ will be executed. Then he needs to send this вЂњmachine codeвЂќ to us.

In order to use our component, the customer needs to generate a вЂњmachine codeвЂќ using the tool вЂњ softwarekey_customertool.exeвЂќ we provide to him. Let's suppose we are the vendor of a certain component вЂњ protected_comp.exeвЂќ. If he tries to install our executable on a different machine, the component wonвЂ™t run. In particular, it allows us to grant to the customer the right to use our component (EXE) only on a certain machine. The software key we propose in this article, with the mentioned limitations, allows us to get the above intention. LetвЂ™s assume we would like to control how many installations our customers do. Note that the following notes are suitable for other types of components as well (e.g., DLL, COM, etc.). LetвЂ™s suppose we have a software product encapsulated in an executable (EXE) with a policy fee based on installations. In order to explain the background idea, we need to describe the context in which our software key could be useful.

Dll tool license key serial how to#

However, we think that this article could be useful in allowing us to better understand the mechanisms underlain a software key.Д«y the way, in the following sections, we'll mention how to by-pass this protection and some ideas that could be useful to make attackers work harder. We are aware that it is quite simple by-passing the protection offered by the software key presented in this article. We want to highlight that this is just an example. In this article, weвЂ™ll show a way to implement a simple software key that could be useful for protecting software components (e.g., EXE, DLL, COM, etc.) against misuse and for keeping track of installations.