public ActionResult Details(int?id)
{
if (id == null)
{
return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
}
Models.crip crip = db.crips.Find(id);
if (crip == null)
{
return(HttpNotFound());
}
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;
// Converter a String para um byte array 64 bists
byte[] src = Convert.FromBase64String(crip.Texto);
// Decriptar
using (ICryptoTransform decrypt = aes.CreateDecryptor())
{
byte[] dest = decrypt.TransformFinalBlock(src, 0, src.Length);
crip.Texto = Encoding.Unicode.GetString(dest);
}
return(View(crip));
}
public ActionResult Create(Models.crip crip)
{
if (ModelState.IsValid)
{
//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 array
byte[] src = Encoding.Unicode.GetBytes(crip.Texto);
//Encriptação
using (ICryptoTransform encrypt = aes.CreateEncryptor())
{
byte[] dest = encrypt.TransformFinalBlock(src, 0, src.Length);
//Converte byte array para string de base 64
crip.Texto = Convert.ToBase64String(dest);
}
db.crips.Add(crip);
db.SaveChanges();
return(RedirectToAction(nameof(Index)));
}
return(View(crip));
}