public void Encrypt()
{
byte[] data = new byte[1024];
RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
try
{
if (publicxml.Length == 0)
{
_ispub_xml = false;
MessageBox.Show("Файл с открытым ключем пуст...");
return;
}
else
{
rsa.FromXmlString(publicxml);
}
}
catch (Exception ex)
{
MessageBox.Show("Проблема с RSA... \n" + ex.Message.ToString());
}
try
{
data = Encoding.UTF8.GetBytes(txtMessage.Text);
}
catch (Exception ss)
{
MessageBox.Show(ss.ToString());
return;
}
try
{
EncryptedData = rsa.Encrypt(data, false);
}
catch (CryptographicException ex)
{
MessageBox.Show("Ошибка расшифровки... \n" + ex.Message.ToString());
}
s2 = Encoding.UTF8.GetString(EncryptedData);
s4 = Convert.ToBase64String(EncryptedData);
for (int i = 0; i < data.Length - 1; i++)
{
data.SetValue((byte)0, i);
}
for (int i = 0; i < EncryptedData.Length - 1; i++)
{
EncryptedData.SetValue((byte)0, i);
}
}
public Boolean Initialise()
{
Boolean retVal = false;
try
{
_state = Common.NodeState.Initialising;
DLoggerManager.Instance.Logger.Log(DFramework.Logging.Interfaces.LoggerMessageType.VerboseHigh | DFramework.Logging.Interfaces.LoggerMessageType.Information | DFramework.Logging.Interfaces.LoggerMessageType.Sensitive, "Initialising AESEncryptNode.");
//Clear outputs
EncryptedData.SetValue(null);
retVal = true;
}
finally
{
_state = retVal ? Common.NodeState.Ready : Common.NodeState.Error;
DLoggerManager.Instance.Logger.Log(DFramework.Logging.Interfaces.LoggerMessageType.VerboseHigh | DFramework.Logging.Interfaces.LoggerMessageType.Information | DFramework.Logging.Interfaces.LoggerMessageType.Sensitive, "Initialised AESEncryptNode.");
}
return(retVal);
}
public Boolean Process()
{
Boolean retVal = false;
try
{
_state = Common.NodeState.Processing;
DLoggerManager.Instance.Logger.Log(DFramework.Logging.Interfaces.LoggerMessageType.VerboseHigh | DFramework.Logging.Interfaces.LoggerMessageType.Information | DFramework.Logging.Interfaces.LoggerMessageType.Sensitive, "Processing AESDecryptNode.");
if (IV.Value == null)
{
//Split IV from the data
using (MemoryStream dataWithIV = new MemoryStream(EncryptedData.Value))
{
Byte[] iv = new Byte[16];
dataWithIV.Read(iv, 0, iv.Length);
Byte[] dataBlock = new Byte[dataWithIV.Length - iv.Length];
dataWithIV.Read(dataBlock, 0, dataBlock.Length);
IV.SetValue(iv);
EncryptedData.SetValue(dataBlock);
}
}
Byte[] inBlock = (Byte[])EncryptedData.Value;
DLoggerManager.Instance.Logger.Log(DFramework.Logging.Interfaces.LoggerMessageType.VerboseHigh | DFramework.Logging.Interfaces.LoggerMessageType.Information | DFramework.Logging.Interfaces.LoggerMessageType.Sensitive, "Creating AES decryptor.");
DLoggerManager.Instance.Logger.Log(DFramework.Logging.Interfaces.LoggerMessageType.VerboseHigh | DFramework.Logging.Interfaces.LoggerMessageType.Information | DFramework.Logging.Interfaces.LoggerMessageType.Sensitive, "Key = {0}.", ((Byte[])Key.Value).ToPrettyString());
DLoggerManager.Instance.Logger.Log(DFramework.Logging.Interfaces.LoggerMessageType.VerboseHigh | DFramework.Logging.Interfaces.LoggerMessageType.Information | DFramework.Logging.Interfaces.LoggerMessageType.Sensitive, "IV = {0}.", ((Byte[])IV.Value).ToPrettyString());
DLoggerManager.Instance.Logger.Log(DFramework.Logging.Interfaces.LoggerMessageType.VerboseHigh | DFramework.Logging.Interfaces.LoggerMessageType.Information | DFramework.Logging.Interfaces.LoggerMessageType.Sensitive, "Input = {0}.", inBlock.ToPrettyString());
Byte[] outBlock = AESUtility.DecryptBytes(inBlock, (Byte[])Key.Value, (Byte[])IV.Value);
_unencryptedData.SetValue(UnicodeEncoding.Unicode.GetString(outBlock));
retVal = true;
}
catch (Exception ex)
{
_state = Common.NodeState.Error;
DLoggerManager.Instance.Logger.Log(DFramework.Logging.Interfaces.LoggerMessageType.Fail | DFramework.Logging.Interfaces.LoggerMessageType.Exception | DFramework.Logging.Interfaces.LoggerMessageType.Sensitive, "Exception occurred in AESDecryptNode :: {0}", ex.ToString());
retVal = false;
}
finally
{
_state = Common.NodeState.Processed;
DLoggerManager.Instance.Logger.Log(DFramework.Logging.Interfaces.LoggerMessageType.VerboseHigh | DFramework.Logging.Interfaces.LoggerMessageType.Information | DFramework.Logging.Interfaces.LoggerMessageType.Sensitive, "Processed AESDecryptNode.");
if (retVal)
{
Processed?.Invoke(this, EventArgs.Empty);
}
}
if (retVal)
{
if (_next != null && _next.Length > 0)
{
return(_next[0].Process());
}
else
{
return(true);
}
}
else
{
return(false);
}
}