DES and Triple DES cipher algorithms (s390)

modulename: des_s390.ko

configname: CONFIG_CRYPTO_DES_S390

Linux Kernel Configuration
└─>Cryptographic options
└─>DES and Triple DES cipher algorithms (s390)
In linux kernel since version 2.6.16 (release Date: 2006-03-19)  
DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).

source code: