2018 Sep. 02.
https://wiki.parabola.nu/Easy-rsa より
PKI : a Public Key Infrastructure
a Public Key Infrastructure (PKI) consists of:
a public master Certificate Authority (CA) certificate and a private key;
a separate public certificate and private key pair for each server;
a separate public certificate and private key pair for each client.
easy-rsa
It initialize a new PKI and generate a CA keypair that will be used to sign certificates.
