Simple-secret command line tool

secret.js

#!/usr/bin/env node

/**
 * Module dependencies.
 */

var program = require('commander')
  , secrets = require('simple-secrets');

program
  .version(require("../package.json").version)
  .option('-k, --key <key>', 'Master key');

program
  .command("encrypt <obj>")
  .description("Encrypt a secret")
  .action(function(obj) {
    var key = new Buffer(program.key, 'hex')
      , sender = secrets(key)
      , obj = JSON.parse(obj);

    console.log(sender.pack(obj));
  });

program
  .command("decrypt <hash>")
  .description("Decrypt a secret")
  .action(function(hash) {
    var key = new Buffer(program.key, 'hex')
      , sender = secrets(key);

    console.log(sender.unpack(hash));
  });

program.parse(process.argv);

if (!program.args.length) program.help();