License enforcement the application of an access control policy on code, restricting the environments in which it may be executed.

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9
votes
4answers
8k views

License key / Serial number generator and checker

I need a serial number generator and accompanying checker. I would like to be able to set a salt (and maybe a length). The generator should only produce serial numbers that pass the test of the ...
6
votes
3answers
492 views

A safe license System

So I'm trying to think of a good way to check if the license key a user supplies for a program is legit or not. Let's suppose this is the way they get there license They make some type of purchase. ...
4
votes
1answer
284 views

Storing License Keys

I'm creating an application which generates licenses key and stores this in a database (the licenses are checked online). I don't wish to store these license unhashed, in case the database is stolen. ...
3
votes
3answers
145 views

Should you notify software vendors that their software has been cracked?

Apologies if this is not the right place to ask this question, I will happily move it to another Stack Exchange site if need be. Before I explain the rationale behind the question, let me clear up a ...
2
votes
1answer
158 views

The best ways to persist the license client information in the database

I develop a license server and a license client system (Java based applications). The flow is the following: The license is stored on the license server The client application includes a ...
2
votes
2answers
146 views

Obstacle in Implementing a Time Limited/Number of Use Limited Software

How does one implement a trial period in a product properly, e.g. a trial period that lasts 30 days, or limits the number of product uses to 10? Storing the entries, even in an encrypted form, isn't ...
1
vote
5answers
1k views

Encrypt-function inside PHP code that you have to publish

If you write a PHP application, where you have to deliver the compiled code to the customer, how could you include a functionality to send encrypted data from that application to others, and include ...
1
vote
1answer
101 views

Encrypting/decrypting our license key

We need to provide a license key to customers for our application. The actual license is XML but we need to encrypt it and then in our program decrypt it. I think it is the following, but am asking to ...
1
vote
2answers
70 views

Restricting source code to domain name

I'm starting a very large project soon. It must include a licensing system. The project will produced using PHP/Laravel/JavaScript and use many different libraries, a CMS, and a few databases. The ...
0
votes
1answer
271 views

copy protection (or licensing) mechanism for an android app

I am trying to implement a copy protection (or licensing) mechanism for an android app. The app is not distributed through Google Play or other online market and instead it is distributed through ...
0
votes
3answers
162 views

Implement server serial key for server software

Me and my friend want to sell game server-side software, but we want some sort of control, over use of that software. For example, we want some sort of serial key system, so only verified/paid ...
-2
votes
1answer
121 views

Am I covered with GPL If I want to share open source code of project developed in my company? [closed]

I do not know if it's the right place to ask this question. But I find that this site is the closest site in the exchange sites to ask a such question. I m working in a company and in my job contract ...
-3
votes
1answer
2k views

How can police find out about criminal activity on an iPod Touch?

Higher authorities could easily find out about criminal activity - such as drug trafficking and child pornography - being conducted on a laptop simply by hacking into it or somehow seeing the history. ...