C# - GUI rework. Add API call and basic logic

This project requires signing a Non-Disclosure Agreement. Hello all, Our client is looking for a talented individual to rework an existing piece of software: [login to view URL] The software is written in C# utilizing .NET 3.5 Programming requirements: - Our client will provide their own edited config file. Config file will contain two sets of DNS servers. These values will be hardcoded into program. See config file issued with software above for syntax information. - Program will accept username, password, and IP address (optional) - Program will encrypt the password using an equivalent of the function below - IP address must be checked for validity (regex, TryParse or method of programmer's choice) - IP Address textbox auto-populates with public IP address when "Autodetect IP Address" is checked. Textbox is disabled if Autodetect is checked --- Note: IP can be retrieved from [login to view URL] --- If the API is called with no arguments it will simply echo value of $_SERVER['REMOTE_ADDR'] - In event that "Autodetect IP Address" becomes unchecked, IP Address text box becomes enabled - Program will call a server-side PHP API in the following syntax --- [login to view URL] --- Where: ----- u = username (email address) ----- p = encrypted password ----- ip = IP Address - New version of program will use a new configuration file that includes (but is not limited to) the three pieces of information above function encrypt($string) { $output = false; $key = 'specified secret key'; // initialization vector $iv = md5(md5($key)); $output = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, md5($key), $string, MCRYPT_MODE_CBC, $iv); $output = bin2hex($output); return $output; } Attached is a general mockup of how our client wants the new UI to look. We will provide a Photoshop PSD to the winner which has the actual logo and information, as well as the font we wish to use. There are some additional requirements that will be discussed with potential awardees.