internal static void EncryptEcb(
ReadOnlySpan <byte> plaintext,
Span <byte> ciphertext,
Aes128Key key,
PaddingMode paddingMode = PaddingMode.Zeros)
{
ref var expandedKey = ref MemoryMarshal.GetReference(key.ExpandedKey);
internal static void EncryptGcm(
ReadOnlySpan <byte> input,
Span <byte> output,
ReadOnlySpan <byte> addt,
ReadOnlySpan <byte> iv,
Span <byte> tag,
Aes128Key key)
{
Vector128 <byte> tmp1, tmp2, tmp3, tmp4;
Vector128 <byte> h, h2, h3, h4, t;
Vector128 <byte> ctr1, ctr2, ctr3, ctr4;
var one = One;
var four = Four;
var bswapEpi64 = BswapEpi64;
var bswapMask = BswapMask;
var x = Vector128 <byte> .Zero;
Vector128 <byte> y;
Span <byte> lastBlock = stackalloc byte[BlockSize];
ref var expandedKey = ref MemoryMarshal.GetReference(key.ExpandedKey);
