public override void Encrypt(byte[] key, byte[] iv, string encryptData = null)
{
string temppic = Path.GetTempPath() + "temp" + Path.GetExtension(filePath);
Image imgInput = Image.FromFile(this.filePath);
imgInput = (Image)SteganographyWrapper.HideTextInImage(encryptData, (Bitmap)imgInput);
imgInput.Save(temppic);
imgInput.Dispose();
System.IO.File.Delete(filePath);
System.IO.File.Copy(temppic, filePath);
}
