public string DecryptAES(ParametroEntreda Entrada)
{
if (Entrada.cipherText == null || Entrada.cipherText.Length <= 0)
throw new ArgumentNullException("cipherText");
if (Entrada.Key == null || Entrada.Key.Length <= 0)
throw new ArgumentNullException("Key");
if (Entrada.IV == null || Entrada.IV.Length <= 0)
throw new ArgumentNullException("Key");
Entrada.plainText = null;
using (TripleDESCryptoServiceProvider tdsAlg = new TripleDESCryptoServiceProvider())
{
tdsAlg.Key = Entrada.Key;
tdsAlg.IV = Entrada.IV;
ICryptoTransform decryptor = tdsAlg.CreateDecryptor(tdsAlg.Key, tdsAlg.IV);
using (MemoryStream msDecrypt = new MemoryStream(Entrada.cipherText))
{
using (CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
{
using (StreamReader srDecrypt = new StreamReader(csDecrypt))
{
Entrada.plainText = srDecrypt.ReadToEnd();
}
}
}
}
return Entrada.plainText;
}
public string DecryptRijndael(ParametroEntreda Entrada)
{
if (Entrada.cipherText == null || Entrada.cipherText.Length <= 0)
throw new ArgumentNullException("cipherText");
if (Entrada.Key == null || Entrada.Key.Length <= 0)
throw new ArgumentNullException("Key");
if (Entrada.IV == null || Entrada.IV.Length <= 0)
throw new ArgumentNullException("IV");
Entrada.plainText = null;
using (RijndaelManaged rijAlg = new RijndaelManaged())
{
rijAlg.Key = Entrada.Key;
rijAlg.IV = Entrada.IV;
ICryptoTransform decryptor = rijAlg.CreateDecryptor(rijAlg.Key, rijAlg.IV);
using (MemoryStream msDecrypt = new MemoryStream(Entrada.cipherText))
{
using (CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
{
using (StreamReader srDecrypt = new StreamReader(csDecrypt))
{
Entrada.plainText = srDecrypt.ReadToEnd();
}
}
}
}
return Entrada.plainText;
}
