static void Main(string[] args)
{
// "Main" is from the client point of view
LicenseServer server = new LicenseServer();
Signer signer = new Signer();
// Obtain a key from the server
LicenseKey key = server.GetKey("nodots");
// Verify the signature of the unchanged key, this will result to true
bool isValid1 = signer.VerifySignature(key, server.PublicKey);
// Manipulate the license
key.License.FeatureB = true;
// Verify the signature of the changed key, this will result to false
bool isValid2 = signer.VerifySignature(key, server.PublicKey);
}