SHA1 digest algorithm (SSSE3/AVX/AVX2/SHA-NI)

modulename: sha1-ssse3.ko

configname: CONFIG_CRYPTO_SHA1_SSSE3

Linux Kernel Configuration
└─>Cryptographic API
└─>SHA1 digest algorithm (SSSE3/AVX/AVX2/SHA-NI)
In linux kernel since version 3.1 (release Date: 2011-10-24)  
SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
using Supplemental SSE3 (SSSE3) instructions or Advanced Vector
Extensions (AVX/AVX2) or SHA-NI(SHA Extensions New Instructions),
when available.

source code:
arch/x86/crypto/