public void KeyValidation()
{
// please add SKGL as a reference (using SKGL)
/**
*
* STEP 1: MACHINE CODE
* This code should be generated by the client.
**/
var machineCode = SKM.getMachineCode(SKM.getSHA1);
System.Diagnostics.Debug.WriteLine(machineCode);
/**
*
* STEP 2: VALIDATION OF ACTIVATION FILE
*
* The code is already pre-configured for you; you only need to specify the file path.
* You can specify the file path in the string filePath variable below
*
* */
// where the activation file is located
string filePath = "c:\\test\\ActivationFile20150020.skm";
string rsaPublicKey = "<RSAKeyValue><Modulus>sGbvxwdlDbqFXOMlVUnAF5ew0t0WpPW7rFpI5jHQOFkht/326dvh7t74RYeMpjy357NljouhpTLA3a6idnn4j6c3jmPWBkjZndGsPL4Bqm+fwE48nKpGPjkj4q/yzT4tHXBTyvaBjA8bVoCTnu+LiC4XEaLZRThGzIn5KQXKCigg6tQRy0GXE13XYFVz/x1mjFbT9/7dS8p85n8BuwlY5JvuBIQkKhuCNFfrUxBWyu87CFnXWjIupCD2VO/GbxaCvzrRjLZjAngLCMtZbYBALksqGPgTUN7ZM24XbPWyLtKPaXF2i4XRR9u6eTj5BfnLbKAU5PIVfjIS+vNYYogteQ==</Modulus><Exponent>AQAB</Exponent></RSAKeyValue>";
var keyInfo = new KeyInformation();
keyInfo = keyInfo.LoadFromFile(filePath, json: true, activationFile: true);
if (keyInfo.HasValidSignature(rsaPublicKey)
.IsValid())
{
// if we have come so far, the user has a valid activation file
// where no information has been altered.
// below this line, please put some logic handle
if (keyInfo.IsOnRightMachine().IsValid())
{
// if this is not true, the user tries to activate
// an activation file that belongs to another computer.
// therefore, it's invalid operation and should FAIL.
// note, this method assumes you use SHA1 as hashing algorithm
// for the machine code.
}
// here we can retrieve some useful info
Console.WriteLine(keyInfo.CreationDate);
//... etc.
}
else
{
Assert.Fail();
}
}
public void OfflineKeyValidationWithPeriodicTimeCheck()
{
var RSAPublicKey = "<RSAKeyValue><Modulus>sGbvxwdlDbqFXOMlVUnAF5ew0t0WpPW7rFpI5jHQOFkht/326dvh7t74RYeMpjy357NljouhpTLA3a6idnn4j6c3jmPWBkjZndGsPL4Bqm+fwE48nKpGPjkj4q/yzT4tHXBTyvaBjA8bVoCTnu+LiC4XEaLZRThGzIn5KQXKCigg6tQRy0GXE13XYFVz/x1mjFbT9/7dS8p85n8BuwlY5JvuBIQkKhuCNFfrUxBWyu87CFnXWjIupCD2VO/GbxaCvzrRjLZjAngLCMtZbYBALksqGPgTUN7ZM24XbPWyLtKPaXF2i4XRR9u6eTj5BfnLbKAU5PIVfjIS+vNYYogteQ==</Modulus><Exponent>AQAB</Exponent></RSAKeyValue>";
var keyInfo = new KeyInformation().LoadFromFile("c:\\test\\license2.txt");
if (keyInfo.HasValidSignature(RSAPublicKey, 3)
.IsValid())
{
// the signature is correct so
// the program can now launch
return;
}
else
{
string key = "";
if (keyInfo.IsValid())
{
key = keyInfo.Key; // the license key is stored in the activation file.
}
else
{
key = "MJAWL-ITPVZ-LKGAN-DLJDN"; // if we are here, ask the user about the key
}
var machineCode = SKGL.SKM.getMachineCode(SKGL.SKM.getSHA1);
keyInfo = SKGL.SKM.KeyActivation("3", "2", "751963", key, machineCode, secure: true, signMid: true, signDate: true);
if (keyInfo.HasValidSignature(RSAPublicKey).IsValid())
{
// the signature is correct and the key is valid.
// save to file.
keyInfo.SaveToFile("c:\\test\\license2.txt");
// the program can now launch
return;
}
else
{
// failure. close the program.
}
}
Assert.Fail();
}