newssl.sh

#!/usr/bin/env bash

newssl() {
  case "$1" in
    rsa|-rsa|--rsa|-r) openssl genrsa -out key.pem 1024 >&/dev/null ;;
    dsa|-dsa|--dsa|-d) openssl dsaparam -noout -out key.pem -genkey 1024 >&/dev/null ;;
    ec|-ec|--ec|-e)    openssl ecparam -out key.pem -name sect571k1 -genkey >&/dev/null ;;
    *) echo "newssl <rsa|dsa|ec> <hostname>" ; return ;;
  esac
  openssl req -new -x509 -days 3650 -subj "/C=US/ST=New York/L=Rochester/CN=$2" -key key.pem -out "$2.pem" >&/dev/null
  openssl x509 -in "$2.pem" -text >&/dev/null
  cat key.pem >> "$2.pem" && rm key.pem >&/dev/null
}

# To create a self-signed my.hostname.com.pem using dsa:
# source newssl.sh
# newssl dsa my.hostname.com