slightly more automated
-rwxr-xr-x 622 certification-authority.sh
-rw-r--r-- 207 revoke-certificate.sh_
-rwxr-xr-x 707 server-certificate.sh
-rwxr-xr-x 999 user-certificate.sh
-rw-r--r-- 738 x509certificates-shellscripts.tar.gz