ref: 41c3cbf1d8b6bcf5e84feacbe34a5ef9d0200587
key_exchange/kx-init-dh
#! /bin/bash -x
cd $(dirname $0)
WORK_DIR=./keys
test -d ${WORK_DIR} || mkdir -p ${WORK_DIR}
openssl genpkey -genparam -algorithm DH -out ${WORK_DIR}/dhp.pem -pkeyopt dh_paramgen_prime_len:4096