Software async crypto daemon

modulename: cryptd.ko

configname: CONFIG_CRYPTO_CRYPTD

Linux Kernel Configuration
└─>Cryptographic API
└─>Crypto core or helper
└─>Software async crypto daemon
In linux kernel since version 2.6.22 (release Date: 2007-07-08)  
This is a generic software asynchronous crypto daemon that
converts an arbitrary synchronous software crypto algorithm
into an asynchronous algorithm that executes in a kernel thread.

source code:
crypto/cryptd.c

depends
CONFIG_CRYPTO