CONFIG_CRYPTO_KDF800108_CTR (not configurable)

modulename: kdf_sp800108.ko

configname: CONFIG_CRYPTO_KDF800108_CTR

Linux Kernel Configuration
└─>Cryptographic API
└─>Random number generation
└─>CRYPTO_KDF800108_CTR
In linux kernel since version 5.2 (release Date: 2019-07-07)  
source code:
crypto/kdf_sp800108.c

depends
CONFIG_CRYPTO

is depended by
CONFIG_KEY_DH_OPERATIONS