private void Decrypt(object obj)
{
_isProcessInProgress = true;
UIServices.SetBusyState();
_logger.Info("start decryption");
_logger.Info("source: " + SourceFilepath);
_logger.Info("destination: " + TargetFilepath);
_logger.Info("sender: " + ContactName);
if (CheckSoureAndTargetPath())
{
if (IsVaildFile())
{
MasterLogin login = _database.GetAll <MasterLogin>().FirstOrDefault();
if (login != null)
{
bool isDecryped = _cryptographyService.DecryptFile(_sourceFilepath, _targetFilepath,
login.PrivateKey);
if (isDecryped)
{
_messenger.Send(new DecryptionSuccsessMsg());
}
else
{
_logger.Error("file can not decrypt!");
_messenger.Send(new DecryptionFailedMsg());
}
_logger.Info("check if source file in temp directory and when it is, then delete");
CheckSourceFileInTempDirectory();
//reset inputs
SourceFilepath = string.Empty;
TargetFilepath = string.Empty;
ContactName = string.Empty;
}
else
{
_logger.Error("login is null!");
}
}
else
{
_logger.Error("file is not vaild for encryption! maybe encrpytion?");
_messenger.Send(new DecryptionFailedMsg());
}
}
else
{
_logger.Error("source and/or target path are not vaild!");
_messenger.Send(new SourceTargetInvaildMsg());
}
_disableForEncryption = true;
_isProcessInProgress = false;
}
public void DecryptFile()
{
//create txt file
const string fileContent = "hello world of encryption!";
var filePath = Path.Combine(Path.GetTempPath(), Path.GetTempFileName());
File.WriteAllText(filePath, fileContent);
_cryptographyService.AssignNewKeys();
//encrypt
var destinationFilename = Path.Combine(Path.GetTempPath(), Path.GetTempFileName());
_cryptographyService.EncryptFile(filePath, destinationFilename, _cryptographyService.GetPublicKey());
//check content
var fileContent2 = File.ReadAllText(destinationFilename + ".sfs");
Assert.IsFalse(fileContent == fileContent2);
//decrypt
var destinationFilename2 = Path.Combine(Path.GetTempPath(), Path.GetTempFileName());
var result = _cryptographyService.DecryptFile(destinationFilename + ".sfs", destinationFilename2,
_cryptographyService.GetPrivateKeyAsXml());
Assert.IsTrue(result);
//check content
var fileContent3 = File.ReadAllText(destinationFilename2 + "..tmp");
Assert.IsTrue(fileContent == fileContent3);
File.Delete(filePath);
File.Delete(destinationFilename + ".sfs");
File.Delete(destinationFilename2 + "..tmp");
}