security licence in java

[ashish jadhav]

Hi m currently working on java security application..can you tell me how we set specific period of time for expiry of that software..ex 30 days or one year..

[Ulf Dittmer]

Welcome to JavaRanch.

What is a "security application"? Is it a desktop app, a web app or something else?

[ashish jadhav]

Hi Ulf Dittmer,
Its a desktop application.

[ashish jadhav]

Hi,
Actully m working on java security appication. Customer key will be generated when the Setup program is run on the Customer side. The key will be generated from the MAC Address of the Network Card. When Customer Key is provide we will generated Product key.now i want help that how we allow for licenses to be generated for a set period of time in same code???

[Ulf Dittmer]

I'm not sure if it supports time-limited licenses, but check out the https://truelicense.dev.java.net/ project.

[ashish jadhav]

Hi ulf i done code for java security licence.actully i created one program through which we can create one file called licece.obj, which contains current system date.i want to call this program at time of installation.and i also created one code that check whenever application runs,it will compare and check this licence file date.if number of days more than 30 program shows mssage"Please Registor application".and if number of days less than 30 appliction will forward.can you please tell me how i call this code from my security appication???

[Ulf Dittmer]

I'm not sure what you mean by "i also created one code", but if it's a Java class, where is the problem in instantiating and using it?

[ashish jadhav]

that means i created one datevalidator.java file which help us create to License file. At the time of installation i want to call this file.There is one more file authenticate.java , which take current date and compares with the license file date.

Whenever we run security application i want to call authenticate.java file.

Please can you advise how we can do this ?

Many thanks,
Ashish

[Ulf Dittmer]

Can't you distribute those classes with the application? Or do they contain the full security algorithms that could be used to subvert the license scheme if patched?

[Teena Ashar]

Hello,

Is any other generic mechanism through which the same can be achieved or application specific code needs to be written.

What is the best way to achieve such logic in the system ?


Thanks,

[Pat Farrell]

This sounds to me like you want to implement a DRM. Lots of luck with that, as many have tried and all have failed.

Just so you know, a MAC address is not fixed.

The only way to keep software secure is to keep it. Don't distribute it, run it on your server. Once you give the .jar to someone, its over.