node-export-public-private-rsa-key.md

Here's how to create and export an RSA public/private key pair from Node.js

const crypto = require('crypto')
const fs = require('fs')

const { privateKey, publicKey } = crypto.generateKeyPairSync('rsa', {
  modulusLength: 2048,
})

fs.writeFileSync('private_test_n1.pem', privateKey.export({
  type: 'pkcs1',
  format: 'pem',
}))

fs.writeFileSync('public_test_n1.pem', publicKey.export({
  type: 'pkcs1',
  format: 'pem',
}))