ref: a1db2de12a68db85115874161c1a84e9b6680583
key_exchange/ecdh/kx-init-dh
#! /bin/bash -x cd $(dirname $0) WORK_DIR=./keys test -d ${WORK_DIR} || mkdir -p ${WORK_DIR} openssl ecparam -name prime256v1 -out ${WORK_DIR}/prime256v1.pem