/// <summary>Create a new AES encryptor with the provided key.</summary>
/// <param name="key">Encryption key to use.</param>
/// <param name="allocator">Allocator to use for allocating keys.</param>
public CryptoAES(byte[] key, Allocator allocator)
{
// Validate
if (key == null)
{
throw new ArgumentNullException(nameof(key), "Key is null");
}
else if (allocator == null)
{
throw new ArgumentNullException(nameof(allocator), "No allocator");
}
else if (key.Length != 32)
{
throw new ArgumentOutOfRangeException(nameof(key), string.Format(
"Key length {0} is not 32", key.Length
));
}
// Initialize
Allocator = allocator;
Key = key;
IV = Allocator.CreateIV(16);
Disposed = false;
// Create AES
Aes = Aes.Create();
Aes.Padding = PaddingMode.PKCS7;
Aes.Mode = CipherMode.CBC;
//Aes.FeedbackSize = 0;
Aes.BlockSize = 128;
Aes.KeySize = 256;
Aes.Key = Key;
Aes.IV = IV;
}
