rsa-keypairgen/index.js

A Node.js library to generate RSA key pairs

const crypto = require("crypto");

function generateKeyPair() {
  const { privateKey, publicKey } = crypto.generateKeyPairSync("rsa", {
    modulusLength: 4096, // The length of the key in bits
    publicKeyEncoding: {
      type: "pkcs1",
      format: "pem", // PEM or DER
    },
    privateKeyEncoding: {
      type: "pkcs1",
      format: "pem", // PEM or DER
    },
  });

  return { publicKey, privateKey };
}

module.exports = generateKeyPair;