Khazad

modulename: khazad.ko

configname: CONFIG_CRYPTO_KHAZAD

Linux Kernel Configuration
└─>Cryptographic API
└─>Block ciphers
└─>Khazad
In linux kernel since version 2.6.12  
Khazad cipher algorithm

Khazad was a finalist in the initial NESSIE competition. It is
an algorithm optimized for 64-bit processors with good performance
on 32-bit processors. Khazad uses an 128 bit key size.

See https://web.archive.org/web/20171011071731/http://www.larc.usp.br/~pbarreto/KhazadPage.html
for further information.

source code: