public void test_RijndaelAES()
{
DDPro.Software.Net20.Library.Rijndael _testObject = new DDPro.Software.Net20.Library.Rijndael(Encoding.Default);
Assert.NotNull(_testObject, "AES-Class for Test test_RijndaelAES could no be created...");
string _pw = "Pa$$Phra53!";
string _msg = "Message to cipher...";
string _tmp = "";
// check one cycle
_tmp = _testObject.EasyEncrypt(_msg, _pw);
Assert.AreEqual(_msg, _testObject.EasyDecrypt(_tmp, _pw), "test_RijndaelAES: encrypted String (1 cycle) not decrypted to original...");
Assert.AreNotEqual(_msg, _testObject.EasyDecrypt(_tmp, "wrongPW"), "test_RijndaelAES: encrypted String (1 cycle) decrypted to original with wrong password --> error...");
// check five cycles
_tmp = _testObject.EasyEncrypt(_msg, _pw, 5);
Assert.AreNotEqual(_msg, _testObject.EasyDecrypt(_tmp, _pw, 4), "test_RijndaelAES: encrypted String (5 cycles) decrypted to original with 4 cycles --> error...");
Assert.AreEqual(_msg, _testObject.EasyDecrypt(_tmp, _pw, 5), "test_RijndaelAES: encrypted String (5 cycles) not decrypted to original...");
}
/// <summary>
/// (initial) load Data from File / DataSource
/// </summary>
/// <returns>TRUE on success, FALSE on error</returns>
private bool _loadData(string FileName)
{
// something set in FileName? Exit if not...
if (FileName.Trim() == "")
{
return(false);
}
// read Data from file
string _fileContent;
try
{
_fileContent = System.IO.File.ReadAllText(FileName, System.Text.Encoding.UTF8);
}
catch (Exception)
{
return(false);
}
// read Data from file
StringBuilder _cData = new StringBuilder(); // Element for ciphered Data
IndexColumn _fIndex = IndexColumn.Username; // Username as Default-index
_set_Version = ""; // init with default-version
// split into lines
string[] _lines = _fileContent.Split(Environment.NewLine.ToCharArray());
// cleanup empty lines
List <string> _cleaned = new List <string>();
foreach (string _rawLine in _lines)
{
if (_rawLine.Trim() != "")
{
_cleaned.Add(_rawLine);
}
}
// check Version
bool _dataActive = false; // reminder for active data-block
foreach (string _line in _cleaned)
{
// detect headline
if (_line.Trim().ToLower().StartsWith("cux"))
{
// nothing for the moment...
}
// detect version
if (_line.Trim().ToLower().StartsWith("version"))
{
if (!_CheckFileVersion(_line.Trim())) // if invalid version
{
return(false); // exit
}
}
// detect index
if (_line.Trim().ToLower().StartsWith("index"))
{
_fIndex = _GetFileIndex(_line.Trim());
}
// detect end
if (_line.Trim().ToLower() == "-| end |-")
{
_dataActive = false;
}
// save data if active
if (_dataActive)
{
_cData.Append(_line.Trim());
}
// detect start
if (_line.Trim().ToLower() == "-| start |-")
{
_dataActive = true;
}
}
// decrypt data
DDPro.Software.Net20.Library.Rijndael _cipher = new DDPro.Software.Net20.Library.Rijndael(System.Text.Encoding.UTF8);
string _xmlString;
try
{
_xmlString = _cipher.EasyDecrypt(_cData.ToString(), _set_DataCipherPhrase);
}
catch (Exception)
{
return(false);
}
// initialize the internal DataSet by used Index-Column(s)
_initializeDataSet(_fIndex);
// apply XML to dataset
try
{
System.IO.TextReader _dsData = new System.IO.StringReader(_xmlString);
_int_DataSet.ReadXml(_dsData);
_int_DataSet.AcceptChanges();
}
catch (Exception)
{
return(false);
}
// everything was ok
return(true);
}