static void Main(string[] args)
{
// init class
EncryptDecrypt encrypt = new Encrypt();
EncryptDecrypt decrypt = new Decrypt();
ValidateStart validate = new ValidateStart();
Method methods = new Method();
// create thread
Thread thread;
// origin input validation
validate.ValidateOrigin();
// if input is enc(encrypt) or dec(decrypt)
if (validate.GetUserInput().ToLower().Equals("enc"))
{
thread = new Thread(() => encrypt.EncryptData(validate.GetPath()));
}
else
{
thread = new Thread(() => decrypt.DecryptData(validate.GetPath()));
}
// start thread
thread.Start();
}
// encrypt specified file
public override void EncryptData(string path)
{
// init classes
Messages messages = new Messages();
EncryptDecrypt decrypt = new Decrypt();
Validation validation = new Validation();
Method methods = new Method();
// variables
byte[] secretKey = null; byte[] IV = null;;
string elapsedTime, directory, fileName, filePath, lastItem;
bool firstRun = true, error = false, lastRun = false;
// new list
List <string> fileList = new List <string>();
// add files to list if directory, else add only the path itself
if (validation.ValidateDirectory(path))
{
fileList = new List <string>(methods.GetFiles(path));
}
else
{
fileList.Add(path);
}
// get last item in fileList
lastItem = fileList[(fileList.Count - 1)];
// new stopwatch
Stopwatch stopWatch = new Stopwatch();
stopWatch.Start();
try {
// encrypt all files in fileList
foreach (string file in fileList)
{
// set and reset variables
byte[] encryptedBytes = null, fileAsBytes = null, extensionAsBytes = null;
IEnumerable <byte> fullBytes = null, plainBytes = null;
string extension = null;
// if last iteration
if (file.Equals(lastItem))
{
lastRun = true;
}
// read file
fileAsBytes = File.ReadAllBytes(file);
// extension to be appended to file
extension = Path.GetExtension(file);
// append extension to file
extensionAsBytes = Encoding.ASCII.GetBytes(extension);
plainBytes = fileAsBytes.Concat(extensionAsBytes);
fileAsBytes = plainBytes.ToArray();
// create rijndael object
Rijndael rijndael = Rijndael.Create();
// generate only one key/IV for the current instance
if (firstRun)
{
secretKey = Encoding.ASCII.GetBytes(methods.generateKey(16)); IV = Encoding.ASCII.GetBytes(methods.generateKey(16)); firstRun = false; Console.WriteLine(Environment.NewLine);
}
// set values
rijndael.Key = secretKey;
rijndael.Mode = CipherMode.CBC;
rijndael.Padding = PaddingMode.PKCS7;
rijndael.IV = IV;
// open streams with data
MemoryStream memoryStream = new MemoryStream();
CryptoStream cryptoStream = new CryptoStream(memoryStream, rijndael.CreateEncryptor(), CryptoStreamMode.Write);
// progress notification
Console.SetCursorPosition(0, Console.CursorTop - 1);
methods.ClearCurrentConsoleLine();
if (!lastRun)
{
messages.ProcessMessage(file);
}
else
{
messages.ProcessCompleteMessage();
}
// encrypt
cryptoStream.Write(fileAsBytes, 0, fileAsBytes.Length);
cryptoStream.Close();
// append IV to content
fullBytes = memoryStream.ToArray().Concat(IV).ToArray();
encryptedBytes = fullBytes.ToArray();
memoryStream.Close();
// write encrypted content to file
System.IO.File.WriteAllBytes(file, encryptedBytes);
// progress notification
Console.SetCursorPosition(0, Console.CursorTop + 1);
methods.ClearCurrentConsoleLine();
if (!lastRun)
{
messages.EncryptProgressMessage(file);
}
else
{
messages.EncryptionCompleteMessage();
}
// set file extension to .rip
File.Move(file, Path.ChangeExtension(file, ".rip"));
// clear resources
rijndael.Dispose();
}
} catch (Exception E) {
error = true;
if (E is UnauthorizedAccessException)
{
messages.AuthMessage();
}
else if (E is CryptographicException)
{
messages.CryptoError();
}
else
{
messages.UnexpectedError();
}
}
// print if no error was encountered
if (!error)
{
messages.FileToRipMessage();
}
// stop stopwatch
stopWatch.Stop();
// print elapsed time
TimeSpan ts = stopWatch.Elapsed;
elapsedTime = String.Format("{0:00}:{1:00}:{2:00}.{3:00}",
ts.Hours, ts.Minutes, ts.Seconds, ts.Milliseconds / 10);
messages.TimeMessage(elapsedTime);
// catch file/directory creation/write errors
try {
// create directory if it does not already exist then add file containing key
directory = Path.GetPathRoot(Environment.GetFolderPath(Environment.SpecialFolder.System)) + "autocryptKeyStorage";
if (!Directory.Exists(directory))
{
Directory.CreateDirectory(directory);
}
fileName = DateTime.Now.ToString("HH_mm_ss") + "_keyKeeper.key";
filePath = directory + "\\" + fileName;
File.WriteAllText(Path.Combine(directory, fileName), methods.WarpKey(Encoding.ASCII.GetString(secretKey)));
// print if no error was encountered
if (!error)
{
messages.SuccessMessage();
}
// print if key is not empty or null
if (!Encoding.ASCII.GetString(secretKey).Equals("") || !Encoding.ASCII.GetString(secretKey).Equals(null))
{
// provide user with decryption key
messages.KeyMessage(methods.WarpKey(Encoding.ASCII.GetString(secretKey)), filePath);
}
} catch (Exception E) {
// if matrix is null or if unexpected error
if (E is ArgumentNullException)
{
messages.NoKeyError();
}
else
{
messages.UnexpectedError();
}
}
// countdown until program will close
methods.Countdown(30);
}
