CONFIG_CRYPTO_RNG2 (not configurable)

modulename: rng.ko

and/or

krng.ko

configname: CONFIG_CRYPTO_RNG2

Linux Kernel Configuration
└─>Cryptographic API
└─>CRYPTO_RNG2
In linux kernel since version 2.6.28 (release Date: 2008-12-24)  
source code:
crypto/rng.c

depends
CONFIG_CRYPTO