DES and Triple DES cipher algorithms

modulename: des_s390.ko

configname: CONFIG_CRYPTO_DES_S390

Linux Kernel Configuration
└─>Cryptographic API
└─>Hardware crypto devices
└─>DES and Triple DES cipher algorithms
In linux kernel since version 2.6.16 (release Date: 2006-03-19)  
This us the s390 hardware accelerated implementation of the
DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).

source code:
arch/s390/crypto/