#Commands to create encryption and signing key pairs
$ openssl req -x509 -newkey rsa:4096 -keyout signing_key.pem -out signing_cert.pem -nodes -days 900
$ openssl req -x509 -newkey rsa:4096 -keyout decryption_key.pem -out decryption_cert.pem -nodes -days 900
Add these files to cert directory
$ cp .env.example .env