PKCS#7 message parser

modulename: pkcs7_message.ko

configname: CONFIG_PKCS7_MESSAGE_PARSER

Linux Kernel Configuration
└─>Cryptographic API
└─>Asymmetric (public-key cryptographic) key type
└─>PKCS#7 message parser
In linux kernel since version 3.17 (release Date: 2014-10-05)  
This option provides support for parsing PKCS#7 format messages for
signature data and provides the ability to verify the signature.

source code: