GHASH digest algorithm

modulename: ghash-generic.ko

configname: CONFIG_CRYPTO_GHASH

Linux Kernel Configuration
└─>Cryptographic API
└─>GHASH digest algorithm
In linux kernel since version 2.6.32 (release Date: 2009-12-02)  
GHASH is message digest algorithm for GCM (Galois/Counter Mode).

source code: