Node.js encryption of passwords

问题:

I am currently using the following for encrypting passwords:

var pass_shasum = crypto.createHash('sha256').update(req.body.password).digest('hex');

Could you please suggest improvements to make the project safer?

回答1:

I use the follwing code to salt and hash passwords.

var bcrypt = require('bcrypt');

exports.cryptPassword = function(password, callback) {
   bcrypt.genSalt(10, function(err, salt) {
    if (err) 
      return callback(err);

    bcrypt.hash(password, salt, function(err, hash) {
      return callback(err, hash);
    });
  });
};

exports.comparePassword = function(plainPass, hashword, callback) {
   bcrypt.compare(plainPass, hashword, function(err, isPasswordMatch) {   
       return err == null ?
           callback(null, isPasswordMatch) :
           callback(err);
   });
};

回答2:

bcrypt also can be called synchronously. Sample Coffeescript:

bcrypt = require('bcrypt')

encryptionUtil = 
    encryptPassword: (password, salt) ->
        salt ?= bcrypt.genSaltSync()
        encryptedPassword = bcrypt.hashSync(password, salt)
        {salt, encryptedPassword}

    comparePassword: (password, salt, encryptedPasswordToCompareTo) ->
        {encryptedPassword} = @encryptPassword(password, salt)
        encryptedPassword == encryptedPasswordToCompareTo

module.exports = encryptionUtil

回答3:

Also there is bcrypt-nodejs module for node. https://github.com/shaneGirish/bcrypt-nodejs.

Previously I used already mentioned here bcrypt module, but fall into problems on win7 x64. On the other hand bcrypt-nodejs is pure JS implementation of bcrypt and does not have any dependencies at all.

回答4:

You can use the bcrypt-js package for encrypting the password.

1. Try npm i bcryptjs
2. var bcrypt = require('bcryptjs') in top.

3. To hash a password:

   bcrypt.genSalt(10, function(err, salt) { bcrypt.hash("B4c0/\/", salt, function(err, hash) { // Store hash in your password DB. }); });

4. To check your password,
   // Load hash from your password DB. bcrypt.compare("B4c0/\/", hash, function(err, res) { // res === true });

You can visit https://www.npmjs.com/package/bcryptjs for more information on bcryptjs.