Authorization Constructor (String, Boolean, String)

        public Authorization Authenticate( string challenge,WebRequest request,ICredentials credentials)
        {
            try
            {
                string message;
                // Check if Challenge string was raised by a site which requires CloneBasic authentication. 
                if ((challenge == null) || (!challenge.StartsWith("CloneBasic")))
                    return null; 
                NetworkCredential myCredentials;
                if (credentials is CredentialCache)
                {
                    myCredentials = credentials.GetCredential(request.RequestUri,"CloneBasic");
                    if (myCredentials == null)
                        return null;
                }
                else    
                    myCredentials = (NetworkCredential)credentials; 
            // Message encryption scheme :  
            // a)Concatenate username and password seperated by space; 
            // b)Apply ASCII encoding to obtain a stream of bytes; 
            // c)Apply Base64 Encoding to this array of bytes to obtain our encoded authorization message.

                message = myCredentials.UserName + " " + myCredentials.Password;
                // Apply AsciiEncoding to our user name and password to obtain it as an array of bytes.
                Encoding asciiEncoding = Encoding.ASCII;
                byte[] byteArray = new byte[asciiEncoding.GetByteCount(message)];
                byteArray = asciiEncoding.GetBytes(message);

                // Perform Base64 transform.
                message = Convert.ToBase64String(byteArray);
            // The following overloaded contructor sets the 'Message' property of authorization to the base64 string; 
            // that  we just formed and it also sets the 'Complete' property to true and the connection group id; 
            // to the domain of the NetworkCredential object.
                Authorization myAuthorization = new Authorization("CloneBasic " + message,true,request.ConnectionGroupName);
                return myAuthorization;
            }
            catch(Exception e)
            {
                    Console.WriteLine("Exception Raised ...:"+e.Message);    
                return null;
            }
          }