const pbox = require('private-box')
const sodium = require('sodium').api

const keypair = sodium.crypto_sign_keypair

function b64ify_keys(k) {
  return {
    'public': k.publicKey.toString('base64'),
    'secret': k.secretKey.toString('base64'),
  }
}

function simple() {

  const keys = [keypair(), keypair()]
  const msg = "this is generated by test-case-creator/index.js (function simple())"
  const ctxt = pbox.encrypt(Buffer.from(msg),
                            keys.map(k => sodium.crypto_sign_ed25519_pk_to_curve25519(k.publicKey)))

  return {
    cypher_text: ctxt.toString('base64'),
    msg: msg,
    keys: keys.map(b64ify_keys),
  }
}

console.log(JSON.stringify(simple(), null, 2))