NET License tool, Easylicense!

Introduced:

In the past I used to like whether there was a software to help the authorization, it can be very simple to create license, and very easy to verify the license.

This is a very common and public function, but I did not find the right open source software, most of the open source software is more complex, and there are too many features I do not need.

So I created this project and I wanted to make the authorization process simple.

Using code:

Easy License is very simple to use, in order to verify a software, you need the following 3 steps.

1:create a public/private Key.

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if(File.Exists("privateKey.xml") || File.Exists("publicKey.xml"))            {                varresult = MessageBox.Show("The key is existed, override it?", "Warning", MessageBoxButton.YesNo);                if(result == MessageBoxResult.No)                {                    return;                }            }            varprivateKey = "";            varpublicKey = "";            LicenseGenerator.GenerateLicenseKey(outprivateKey, outpublicKey);            File.WriteAllText("privateKey.xml", privateKey);            File.WriteAllText("publicKey.xml", publicKey);            MessageBox.Show("The Key is created, please backup it.");

　　

2:use Private key to create a license

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if(!File.Exists("privateKey.xml"))            {                MessageBox.Show("Please create a license key first");                return;            }             varprivateKey = File.ReadAllText(@"privateKey.xml");            vargenerator = newLicenseGenerator(privateKey);              vardictionary = newDictionary<string, string>();             // generate the license            varlicense = generator.Generate("EasyLicense", Guid.NewGuid(), DateTime.UtcNow.AddYears(1), dictionary,                LicenseType.Standard);                        txtLicense.Text = license;            File.WriteAllText("license.lic", license);

　　

3:use Public key to validate the license

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privatestaticvoidValidateLicense()        {            if(!File.Exists("publicKey.xml"))            {                MessageBox.Show("Please create a license key first");                return;            }                        varpublicKey = File.ReadAllText(@"publicKey.xml");             varvalidator = newLicenseValidator(publicKey, @"license.lic");             try            {                validator.AssertValidLicense();            }            catch(Exception ex)            {                Console.WriteLine(ex.Message);            }

　　

Easylicense inside there is a tool called Licensetool , you can download the source code, run, see how it is created key, create Licens and verify license.

And the system also has a demo project that can help you.

Git, please help to add a star bar.

Https://github.com/EasyHelper/EasyLicense

Http://git.oschina.net/EasyHelper/EasyLicense

NET License tool, Easylicense!