(adsbygoogle = window.adsbygoogle || []).push({}); Hey all, i need a little bit of help, I've been making small programs and would like to use a key for separate users.

I would like to be able to do the following:
create a key
be able to have it linked into the program so that key (and multiple) ones can be used.
and deleted if necessary. Thanks

Thread moved to computer programming.

In what language is this going to be created?

im not even sure on that? I was hoping it could be done on C# or C+
(im not too good with either of those programs)

Well, there are tons of ways to create the key, either a random generator, or you just make one up, but, it depends on how you are gonna access the key, what i recommend is via a MySql DB with PHP, so just google how to use tables in PHP with MySql and you should be all set :p

Here is a way you can generate a unique key within your C# example;

    string uKey = new string(Enumerable.Repeat("qwertyuiopasdfghjklzxcvbnm1234567890", 16)

        .Select(s => s[rd.Next(s.Length)]).ToArray()), @"(.{4})", "$1-").Substring(0, 19).ToUpper();

Then a simple way to validate they key (but not secure) would be through pastebin. Put all the keys in a paste bin eg.

    AAAA-AAAA-AAAA-AAAA

BBBB-BBBB-BBBB-BBBB

CCCC-CCCC-CCCC-CCCC

Then to validate that the key is valid (the one they entered)

    string pasteUrl = "https://pastebin.com/raw.php?...";

string serialKey = "abcd-1234-dsgs-sdfs"; 

bool isValid = (new WebClient().DownloadString(pasteUrl).Contains(serialKey) && serialKey.length == 19);

P.s. this is really bad and wouldn't recommend it but it's a base to construct a licence system. Another way would be to create a hash and if the hash meets specific criteria then the licence is valid but then you can't control who uses it.

Thanks man. This will get me started

Can i go ahead and close this thread then :p ?

yeh man, go ahead. thanks

np, if you have any other question(s), please feel free to make another thread :p