Twofish cipher algorithm

modulename: twofish_generic.ko

and/or

twofish.ko

configname: CONFIG_CRYPTO_TWOFISH

Linux Kernel Configuration
└─>Cryptographic options
└─>Twofish cipher algorithm
In linux kernel since version 2.6.12  
Twofish cipher algorithm.

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.

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

source code: