C# .NET - How to add license functionality in my C#.NET application
Asked By Bhawana
03-Feb-12 04:09 AM
I am using C#.NET for coding and SQL Server 2005 for database.
My application is ready for release. Just on thing missing before I can go live.
I want to implement license concept in my application.
There should be some encrypted matter which will be used for validate the application.
Please suggest how I can implement this functionality in my application
Thanks
Danasegarane Arunachalam replied to Bhawana
Design a logic by your self
1. Get the machine mac id
2.Create a unique combination of registration using MacID+CPUID and use that key as registeration key
Or else use any on like this one (http://jagregory.com/writings/rhino-licensing/)
dipa ahuja replied to Bhawana
That depends on you , which method you want to use for licensing your software:
For ex if we take example of M-S office it gives use a serial no. for each version of m-s office. and using that serial no. we can install the full version of software.
Adobe phoshop give a serial to use the software for 30-days and after that user have to register via key, by telephone or by email etc ..
in these methods also you have choice wheather you want give same serial no. for your software or you want to generate a list of valid serial no. for you software.
If you use same serial then using that serial no. user can use the full version of your software, if you use the serial based on the particular user , then each user who buy user software will get the unique serial to use ur software.
and most imp the implementation of licence or serial no. will be done in your own software at the time when user run the software. that mean at run time the first thing you have to check that is the licensing of your software then after run other forms of ur software
hope you get some idea..!
kalpana aparnathi replied to Bhawana
Assuming you don't want to do a special build for each user, then:
- Generate yourself a secret key for the product
- Take the user's name
- Concatentate the users name and the secret key and hash with (for example) SHA1
- Unpack the SHA1 hash as an alphanumeric string. This is the individual user's "Product Key"
- Within the program, do the same hash, and compare with the product key. If equal, OK.
Bhawana replied to kalpana aparnathi
hi,
can you provide me working sample for the same
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