public async Task <bool> UploadFileAndEncryptAsync(FileCrypt fileCrypt, Stream stream)
{
fileCrypt.FileCryptId = await this._fileCryptRepository.SaveFileDetailsForEncryptionAsync(fileCrypt);
Assembly asm = Assembly.GetExecutingAssembly();
var memoryStream = new MemoryStream();
var memoryStreamEncrypted = new MemoryStream();
string tempFilePath = "";
fileCrypt.EncryptedFileName = "FileEncrypt_" + fileCrypt.FileCryptId.ToString();
fileCrypt.EncryptedFileFullPath = fileCrypt.EncryptedFilePath + fileCrypt.EncryptedFileName + fileCrypt.EncryptedFileExtension;
tempFilePath = fileCrypt.EncryptedFilePath + fileCrypt.EncryptedFileName + ".temp";
string path = System.IO.Path.GetDirectoryName(asm.Location);
string privateKeyFileFullPath = path + @"\" + GlobalAppConfigurations.Instance.GetValue("PGPPrivateKeyFileFullPath").ToString();
string publicKeyFileFullPath = path + @"\" + GlobalAppConfigurations.Instance.GetValue("PGPPublicKeyFileFullPath").ToString();
string pgpKeyPassword = GlobalAppConfigurations.Instance.GetValue("PGPKeyPassword").ToString();
// Write File from stream to Byte
await stream.CopyToAsync(memoryStream);
byte[] fileInByte = memoryStream.ToArray();
// Save Encrytped File byte to File
using (var fileStream = new FileStream(tempFilePath, FileMode.OpenOrCreate, FileAccess.ReadWrite))
using (var memoryStreamToFile = new MemoryStream(fileInByte))
{
byte[] bytes = new byte[memoryStreamToFile.Length];
await memoryStreamToFile.ReadAsync(bytes, 0, (int)memoryStreamToFile.Length);
await fileStream.WriteAsync(bytes, 0, bytes.Length);
}
using (ChoPGPEncryptDecrypt pgp = new ChoPGPEncryptDecrypt())
{
try
{
await pgp.EncryptFileAsync(tempFilePath,
fileCrypt.EncryptedFileFullPath,
publicKeyFileFullPath,
true, true);
}
catch (Exception ex)
{
throw ex;
}
}
if (File.Exists(tempFilePath))
{
File.Delete(tempFilePath);
}
bool isUpdateSuccess = await this._fileCryptRepository.UpdateFileDetailsAfterEncryptionAsync(fileCrypt);
return(isUpdateSuccess);
}
private async void btnEncrypt_Click(object sender, RoutedEventArgs e)
{
try
{
ChoPGPEncryptDecrypt pgp = PGPOptions.NewPGPEncryptDecrypt();
await pgp.EncryptFileAsync(PGPEncryptFileOptions.InputFilePath, PGPEncryptFileOptions.OutputFilePath, PGPEncryptFileOptions.PublicKeyFilePath, PGPEncryptFileOptions.Armor, PGPEncryptFileOptions.IntegrityCheck);
MessageBox.Show("PGP Encryption successful.", Title, MessageBoxButton.OK, MessageBoxImage.Information);
}
catch (Exception ex)
{
MessageBox.Show("Error occurred during PGP encryption. " + ex.Message, Title, MessageBoxButton.OK, MessageBoxImage.Error);
}
}