NodeJS卡在cryto.pbkdf2Sync函数中

由 wodio发布于 2020-05-09 15:26:24

因此，我在MEAN Stack应用程序中使用随机盐字符串和密码字符串生成密码哈希。该程序成功生成了随机盐并将其打印在控制台上。但是，它卡在了pbkdf2Sync函数上，无法继续前进。

这是我的代码：

const crypto = require('crypto');

UserSchema.methods.setPassword = function(password){
  console.log('start');
  this.salt = crypto.randomBytes(16).toString('hex');
  console.log(this.salt);
  this.hash = crypto.pbkdf2Sync(new Buffer.alloc(password),  new Buffer.alloc(this.salt), 1000, 64, 'sha512').toString('hex');
  console.log(this.hash);
};

输出结果为：

start
ac09ae82b1fbb5b01257b5fa72bfc8614

然后程序就卡在这里了。

据我所知，该功能并未被弃用。我应该如何进行

厮守

2020-05-09 15:26:24

const crypto = require('crypto');

const hash = (password) => {
  console.log('start');
  const salt = crypto.randomBytes(16).toString('hex');
  console.log(salt);
  const hash = crypto
    .pbkdf2Sync(
      new Buffer.alloc(password.length),
      new Buffer.alloc(salt.length),
      1000,
      64,
      'sha512'
    )
    .toString('hex');
  console.log(hash);
};

hash('hello world');

This worked for me, essentially alloc is looking for the number of bytes (size to allocate in memory), a string wouldn't work here.

If you're looking to use password and salt as filled Buffers (with values), then use the second argument (fill), in the case of password: new Buffer.alloc(password.length, password).

Instead, using the .length to return the amount of bytes (size of string), this generated the "correct" output:

start
55387a56bd8ff87ac05be698d938ef04
ab3d65e9e6341a924c752a77b8dc6b78f1e6db5d31df7dd0cc534039dd9662a97bcaf0b959fe78248a49859c7952ddb25d66840f052b27ef1ab60b9446c0c9fd

Ref: https://nodejs.org/api/buffer.html#buffer_class_method_buffer_alloc_size_fill_encoding

wodio

这家伙很懒，什么都没留下

积分
0
话题
0
评论
3253
注册排名
1550