public static IStreamCrypto Sm4Ctr(ReadOnlySpan <byte> key, ReadOnlySpan <byte> iv)
{
if (Aes.IsSupported && Avx.IsSupported && Avx2.IsSupported)
{
return(new CTR128StreamModeBlock16X86(new SM4CryptoBlock16X86(key), iv));
}
if (Aes.IsSupported && Sse2.IsSupported && Ssse3.IsSupported && Sse41.IsSupported)
{
return(new CTR128StreamModeBlock8X86(new SM4CryptoBlock8X86(key), iv));
}
return(BlockCryptoModeCreate.Ctr(new SM4Crypto(key), iv));
}
public static IStreamCrypto AesCtr(ReadOnlySpan <byte> key, ReadOnlySpan <byte> iv)
{
return(BlockCryptoModeCreate.Ctr(AESUtils.CreateECB(key), iv));
}
