public byte[] Decrypt(byte[] cipherBytes, byte[] key, byte[] iv)
{
if (cipherBytes == null || cipherBytes.Length <= 0)
{
throw new ArgumentNullException(nameof(cipherBytes));
}
if (key == null || key.Length <= 0)
{
throw new ArgumentNullException(nameof(key));
}
if (iv == null || iv.Length <= 0)
{
throw new ArgumentNullException(nameof(iv));
}
using (var aesAlg = Aes.Create())
{
if (aesAlg == null)
{
throw new CryptographicException("Could not create AES algorithm");
}
aesAlg.Key = key;
aesAlg.IV = iv;
using (var decryptor = aesAlg.CreateDecryptor(aesAlg.Key, aesAlg.IV))
using (var msDecrypt = new MemoryStream(cipherBytes))
using (var csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
{
return(csDecrypt.GetBytes());
}
}
}