Null algorithms

modulename: crypto_null.ko

configname: CONFIG_CRYPTO_NULL

Linux Kernel Configuration
└─>Cryptographic API
└─>Null algorithms
In linux kernel since version 2.6.12  
These are 'Null' algorithms, used by IPsec, which do nothing.

source code:
crypto/crypto_null.c

depends
CONFIG_CRYPTO

is depended by
CONFIG_CRYPTO_ECHAINIV