public static string GenerateLicenseBASE64String(LicenseEntity lic, byte[] certPrivateKeyData, SecureString certFilePwd)
{
//Serialize license object into XML
XmlDocument _licenseObject = new XmlDocument();
using (StringWriter _writer = new StringWriter())
{
XmlSerializer _serializer = new XmlSerializer(typeof(LicenseEntity), new Type[] { lic.GetType() });
_serializer.Serialize(_writer, lic);
_licenseObject.LoadXml(_writer.ToString());
}
//Get RSA key from certificate
X509Certificate2 cert = new X509Certificate2(certPrivateKeyData, certFilePwd);
RSACryptoServiceProvider rsaKey = (RSACryptoServiceProvider)cert.PrivateKey;
//Sign the XML
SignXML(_licenseObject, rsaKey);
//Convert the signed XML into BASE64 string
return(Convert.ToBase64String(Encoding.UTF8.GetBytes(_licenseObject.OuterXml)));
}
