public ActionResult Details(int?id)
{
if (id == null)
{
return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
}
TextoModel textoModel = db.Textos.Find(id);
if (textoModel == null)
{
return(HttpNotFound());
}
string msgEnc = textoModel.Mensagem;
AesCryptoServiceProvider aes = new AesCryptoServiceProvider();
aes.BlockSize = 128;
aes.KeySize = 256;
aes.IV = Encoding.UTF8.GetBytes(AesIV256BD);
aes.Key = Encoding.UTF8.GetBytes(AesKey256BD);
aes.Mode = CipherMode.CBC;
aes.Padding = PaddingMode.PKCS7;
byte[] src = Convert.FromBase64String(textoModel.Mensagem);
using (ICryptoTransform decrypt = aes.CreateDecryptor())
{
byte[] dest = decrypt.TransformFinalBlock(src, 0, src.Length);
textoModel.Mensagem = Encoding.Unicode.GetString(dest);
}
string msgDec = textoModel.Mensagem;
TempData["msgEnc"] = msgEnc;
TempData["msgDec"] = msgDec;
return(View());
}
public ActionResult Create(TextoModel textoModel)
{
if (ModelState.IsValid)
{
string msgDecript = textoModel.Mensagem;
//AesCryptoServiceProvider
AesCryptoServiceProvider aes = new AesCryptoServiceProvider();
aes.BlockSize = 128;
aes.KeySize = 256;
aes.IV = Encoding.UTF8.GetBytes(AesIV256BD);
aes.Key = Encoding.UTF8.GetBytes(AesKey256BD);
aes.Mode = CipherMode.CBC;
aes.Padding = PaddingMode.PKCS7;
// Convertendo String para byte Arrey
byte[] src = Encoding.Unicode.GetBytes(textoModel.Mensagem);
//Encriptação
using (ICryptoTransform encrypt = aes.CreateEncryptor())
{
byte[] dest = encrypt.TransformFinalBlock(src, 0, src.Length);
textoModel.Mensagem = Convert.ToBase64String(dest);
}
string msgEncript = textoModel.Mensagem;
db.Textos.Add(textoModel);
db.SaveChanges();
return(RedirectToAction(nameof(Create), new { msgEncript = msgEncript, @msgDecript = msgDecript }));
}
return(RedirectToAction(nameof(Create)));
}
