KW (AES Key Wrap)

modulename: keywrap.ko

configname: CONFIG_CRYPTO_KEYWRAP

Linux Kernel Configuration
└─>Cryptographic API
└─>Length-preserving ciphers and modes
└─>KW (AES Key Wrap)
In linux kernel since version 3.10 (release Date: 2013-06-30)  
KW (AES Key Wrap) authenticated encryption mode (NIST SP800-38F
and RFC3394) without padding.

source code:
crypto/keywrap.c

depends
CONFIG_CRYPTO