참고

• https://users.rust-lang.org/t/use-tokio-tungstenite-with-rustls-instead-of-native-tls-for-secure-websockets/90130/2

1. Create unencrypted private key and a CSR (certificate signing request)

openssl req -newkey rsa:2048 -nodes -keyout localhost.key -out localhost.csr

• localhost.csr
• localhost.key

1. Create self-signed certificate (localhost.crt) with the private key and CSR

openssl x509 -signkey localhost.key -in localhost.csr -req -days 36500 -out localhost.crt

• 기간을 100년으로..
• localhost.crt

1. Create a self-signed root CA

openssl req -x509 -sha256 -days 36500 -newkey rsa:2048 -keyout rootCA.key -out rootCA.crt

• 기간 늘리고, passphrase를 webos 입력
• rootCA.crt
• rootCA.key

1. localhost.ext 생성