private void btnRunDecrypt_Click(object sender, EventArgs e)
{
//break when paths are missing:
if (txtKeyfilePath.Text == null && txtDecryptFilePath.Text == null)
{
return;
}
//continue when paths are given.
//load the key file and file to decrypt:
rwBinaryFile rwB = new rwBinaryFile();
byte[] keyFileData = rwB.readBinaryFile(txtKeyfilePath.Text.ToString());
UInt32[] sourceFileToDecrypt = rwB.readEncryptedFile(txtDecryptFilePath.Text.ToString());
//now decrypt the file:
FileCrypt FC = new FileCrypt();
byte[] originalData = FC.decryptFile(keyFileData, sourceFileToDecrypt);
//create filepath with correct extention:
string FileExtention = rwB.getEncryptedFileExtention(txtDecryptFilePath.Text);
string saveFilepath = saveFileToPath("Data Files (*." + FileExtention + ")|*." + FileExtention, FileExtention);
//now write the data like an original file:
rwB.writeBinaryFile(saveFilepath, originalData);
}
//run program buttons:
private void btnRunEncryption_Click(object sender, EventArgs e)
{
//break when paths are missing:
if (txtKeyfilePath.Text == null && txtEncryptFilePath.Text == null)
{
return;
}
//continue when paths are given.
//reset some public vars before (re)using them:
//clear buildlist:
rebuildEncryptedDataList.Clear();
//clear backgroundWorkersCompleted:
BackgroundWorkersCompleted = 0;
//load the key file and file to encrypt:
rwBinaryFile rwB = new rwBinaryFile();
keyFileData = rwB.readBinaryFile(txtKeyfilePath.Text.ToString());
byte[] sourceFileToEncrypt = rwB.readBinaryFile(txtEncryptFilePath.Text.ToString());
//Split the load of sourceFileToEncrypt to different Backgroundworkers:
//WARNING! When sourceFileToEncrypt is odd, do not lose a byte when devission is not a round number!
float fltDiv = (float)sourceFileToEncrypt.Count() / (float)BackgroundWorkersAmount;
int intDiv = sourceFileToEncrypt.Count() / BackgroundWorkersAmount;
int restDiv = sourceFileToEncrypt.Count() % BackgroundWorkersAmount;
Debug.WriteLine("fltDiv: " + fltDiv);
Debug.WriteLine("intDiv: " + intDiv);
Debug.WriteLine("restDiv: " + restDiv);
int sourceAStartPos = intDiv * 0;
byte[] bw0Data = new byte[intDiv];
Array.Copy(sourceFileToEncrypt, sourceAStartPos, bw0Data, 0, intDiv);
rebuildEncryptedDataList.Add(new UInt32[intDiv]);
sourceAStartPos = intDiv * 1;
byte[] bw1Data = new byte[intDiv];
Array.Copy(sourceFileToEncrypt, sourceAStartPos, bw1Data, 0, intDiv);
rebuildEncryptedDataList.Add(new UInt32[intDiv]);
sourceAStartPos = intDiv * 2;
byte[] bw2Data = new byte[intDiv];
Array.Copy(sourceFileToEncrypt, sourceAStartPos, bw2Data, 0, intDiv);
rebuildEncryptedDataList.Add(new UInt32[intDiv]);
//last array has to carry the rest value:
//disabled --> //sourceAStartPos = intDiv * 3;
byte[] bw3Data = new byte[intDiv + restDiv];
Array.Copy(sourceFileToEncrypt, sourceAStartPos, bw3Data, 0, intDiv + restDiv);
rebuildEncryptedDataList.Add(new UInt32[intDiv + restDiv]);
//now encrypt the file:
bw0.RunWorkerAsync(bw0Data); //keyfiledata is publicaly available.
bw1.RunWorkerAsync(bw1Data);
//disabled --> //bw2.RunWorkerAsync(bw2Data);
bw3.RunWorkerAsync(bw3Data);
}
//put all data inside 1 array and write it to file:
void buildEncryptedArrayAndWriteToFile(int threadID, UInt32[] _encryptedData)
{
rebuildEncryptedDataList.Insert(threadID, _encryptedData);
//check if all workers are done before saving data:
if (BackgroundWorkersCompleted < BackgroundWorkersAmount)
{
return;
}
if (progressBar1.Value < 100)
{
MessageBox.Show("Error encrypting file.");
return;
}
//rebuild list with array (2D) to 1D array:
List <UInt32> dataCompleteList = new List <UInt32>();
foreach (UInt32[] bwData in rebuildEncryptedDataList)
{
foreach (UInt32 encDataLine in bwData)
{
if (encDataLine != 0) //skip '0' chars, no idea where comming from :(.
{
dataCompleteList.Add(encDataLine);
}
}
}
//now write the data to file:
rwBinaryFile rwB = new rwBinaryFile();
//create save file containing filetype:
string savePath = saveFileToPath();
string saveFileExtention = rwB.getBinaryFileExtention(txtEncryptFilePath.Text);
//add extetion to filename as dualextention:
string[] savePathBuf = savePath.Split('.');
savePath = ""; //clear savePath;
for (int I = 0; I < savePathBuf.Count(); I++)
{
if (I == savePathBuf.Count() - 1) //add file extention;
{
savePath += '.' + saveFileExtention + '.'; //this could probably give errors when filepath already contains multiple '.'
}
savePath += savePathBuf[I];
}
Debug.Print(savePath);
rwB.writeEncryptedFile(savePath, dataCompleteList.ToArray());
}
