jEncrypt.js

/**
 * Helper function to encrypt a JSON or Javascript Object
 *
 */

const crypto = require("crypto");

const jEncrypt = (pubKey, obj, callback) => {
  const algorithm = "aes-192-cbc";

  let privKey = crypto.scryptSync(pubKey, "salt", 24);
  let iv = Buffer.alloc(16, 19);
  let cipher = crypto.createCipheriv(algorithm, privKey, iv);

  let save = cipher.update(obj, "utf8", "hex");
  save += cipher.final("hex");
  callback(save);
};

const jDecrypt = (pubKey, obj, callback) => {
  let algorithm = "aes-192-cbc";
  let privKey = crypto.scryptSync(pubKey, "salt", 24);
  let iv = Buffer.alloc(16, 19);
  let cipher = crypto.createDecipheriv(algorithm, privKey, iv);

  let unsave = cipher.update(obj, "hex", "utf8");
  unsave += cipher.final("utf8");
  callback(unsave);
};

module.exports = { jEncrypt, jDecrypt };