GHASH hash function

modulename: ghash-generic.ko

configname: CONFIG_CRYPTO_GHASH

Linux Kernel Configuration
└─>Cryptographic API
└─>GHASH hash function
In linux kernel since version 2.6.32 (release Date: 2009-12-02)  
GHASH is the hash function used in GCM (Galois/Counter Mode).
It is not a general-purpose cryptographic hash function.

source code: