You need some additional crypto modules which are provided in the archive: Download. You don't need to exchange your current raid modules even they are also contained in the archive.
$this->bbcode_second_pass_code('', '~# lsmod
Module Size Used by
raid456 55208 0
async_xor 2232 1 raid456
async_memcpy 1692 1 raid456
async_tx 2608 3 raid456,async_xor,async_memcpy
xor 5884 2 raid456,async_xor
md_mod 89488 1 raid456
raid6_pq 78848 1 raid456
')