Example service provide (SP) app for use with 18F's IdP.
$ make setup
$ make test
$ make run
openssl req -days 3650 -newkey rsa:2048 -nodes -keyout config/demo_sp.key \
-x509 -out config/demo_sp.crt -config config/openssl.conf
openssl x509 -fingerprint -noout -in config/demo_sp.crt