C# Tutorials and offshore development in India
    Tutorials   Resources   Forum   Communities   Interview   Jobs   Projects   Offshore Development    
Silverlight Tutorials | Mentor | Code Converter | Articles | Code Factory | Computer Jokes | Members | Peer Appraisal | IT Companies | Bookmarks | Revenue Sharing |


Prizes & Awards
My Profile



Active Members
TodayLast 7 Days more...

New Feature: Community Sites: Create your own .NET community website and start earning from Google AdSense ! It's Free !




Secure Applications - Protect from illegal usage and cracking


Posted Date: 08 Oct 2008    Resource Type: Articles    Category: General

Posted By: Mathew Philip       Member Level: Gold
Rating:     Points: 4



Do you want to protect your software from illegal copying and installation ?

For protecting the software you have to implement a serial number system. Here you can provide a number with your product CD and the software will generate a number from the users computer while installing the product. The newly generating number must be generated in terms of the customers HardDisk serial number. You can provide a webservice to generate a third serial number for this user. This 3rd number will be generated in terms of the first two serial numbers. Do some calculations with first two numbers so you will get third number. KEEP THIS CALCULATION AS A CONFIDENTIAL ONE - DONT GIVE THIS LOGIC TO ANYBODY;

As an alternate you can generate and provide the 3rd number through email or over phone.

In client side also we have a pre implemented logic for this calculation so that it will check the accuracy there. If its correct then it will encript and store the numbers in customers computer. Each time the software will check the harddisk serial number, make the nesessary calculations and compare the stored values. If they are not matching or they are different then it will ask for registartion.




Responses

Author: Herryandi    13 Oct 2008Member Level: Bronze   Points : 1
So do you think, what serial no in computer that microsoft Windows used to make the registration code?

Anyway, great tips

Thanks


Feedbacks      
Popular Tags   What are tags ?   Search Tags  
Software Piracy  .  Protect software  .  Avoid illegal installation  .  Avoid illegal copying  .  

Post Feedback


This is a strictly moderated forum. Only approved messages will appear in the site. Please use 'Spell Check' in Google toolbar before you submit.
You must Sign In to post a response.
Next Resource: FOMA
Previous Resource: Querry DataTable using LINQ
Return to Discussion Resource Index
Post New Resource
Category: General


Post resources and earn money!
 
Related Resources



dotNet Slackers   BizTalk Adaptors    Web Design

efax

Contact Us    Privacy Policy    Terms Of Use