create-keys.`npx create-keys` is a terminal assistant that helps creating RSA or ECDSA asymmetric key pairs (also works in NodeJS). Supported formats: PEM and JWK. Supported encoding: PCKS8 for private keys, PCKS1 for RSA public keys and SPKI for ECDSA public keys. Supported ECDSA curves: P-256 (prime256v1) and P-384 (secp384r1).