v2.0.4

update alg param to PS256 since RS256 is now deprecated.

new certs can be generated with:
openssl req -new -x509 -newkey rsa:4096 -keyout private.pem -sigopt rsa_padding_mode:pss -sha256 -sigopt rsa_pss_saltlen:64 -out public.pem -nodes -days 730