如何使用Node对MongoDB数据库进行加密

const mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/mydatabase', { useNewUrlParser: true });

const userSchema = new mongoose.Schema({
  name: String,
  email: String
});

const User = mongoose.model('User', userSchema);

const CryptoJS = require('crypto-js');
const secretKey = 'mysecretkey';

const encryptedEmail = CryptoJS.AES.encrypt(user.email, secretKey).toString();

const newUser = new User({
  name: 'John Doe',
  email: encryptedEmail
});

newUser.save((err, savedUser) => {
  if (err) {
    console.error(err);
  } else {
    console.log('User saved:', savedUser);
  }
});

const decryptedEmail = CryptoJS.AES.decrypt(savedUser.email, secretKey).toString(CryptoJS.enc.Utf8);
console.log('Decrypted email:', decryptedEmail);