Deflate

modulename: deflate.ko

configname: CONFIG_CRYPTO_DEFLATE

Linux Kernel Configuration
└─>Cryptographic API
└─>Compression
└─>Deflate
In linux kernel since version 2.6.12  
Deflate compression algorithm (RFC1951)

Used by IPSec with the IPCOMP protocol (RFC3173, RFC2394)

source code:
crypto/deflate.c

depends
CONFIG_CRYPTO