CONFIG_CRYPTO_TWOFISH_X86_64_3WAY is not available for thedefaultarchitecture x86.
Result is shown for architecture 64BIT

Twofish cipher algorithm (x86_64, 3-way parallel)

modulename: twofish-x86_64-3way.ko

configname: CONFIG_CRYPTO_TWOFISH_X86_64_3WAY

Linux Kernel Configuration
└─>Cryptographic API
└─>Twofish cipher algorithm (x86_64, 3-way parallel)
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Twofish cipher algorithm (x86_64, 3-way parallel).

Twofish was submitted as an AES (Advanced Encryption Standard)
candidate cipher by researchers at CounterPane Systems. It is a
16 round block cipher supporting key sizes of 128, 192, and 256
bits.

This module provides Twofish cipher algorithm that processes three
blocks parallel, utilizing resources of out-of-order CPUs better.

See also:
<http://www.schneier.com/twofish.html>

source code: