README.md

How to build JWT private and public keys for the jsonwebtokens crate

The default algorithm the jsonwebtoken crate is using is ECDSA with SHA-256.

Generate new ECDSA with SHA-256 public and private signing keys

openssl ecparam -name prime256v1 -genkey -out private-key.pem
openssl pkcs8 -topk8 -nocrypt -in private-key.pem -out private-key-pkcs8.pem
openssl ec -in private-key.pem -pubout -out public-key.pem