Pseudo Random Number Generation for Cryptographic modules

modulename: ansi_cprng.ko

configname: CONFIG_CRYPTO_ANSI_CPRNG

Linux Kernel Configuration
└─>Cryptographic API
└─>Pseudo Random Number Generation for Cryptographic modules
In linux kernel since version 2.6.28 (release Date: 2008-12-24)  
This option enables the generic pseudo random number generator
for cryptographic modules. Uses the Algorithm specified in
ANSI X9.31 A.2.4. Note that this option must be enabled if
CRYPTO_FIPS is selected

source code: