45 lines
2.8 KiB
Markdown
45 lines
2.8 KiB
Markdown
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---
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id: 58a25bcff9fc0f352b528e7d
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title: Hash and Compare Passwords Asynchronously
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challengeType: 2
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videoUrl: ''
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localeTitle: 哈希和异步比较密码
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---
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## Description
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<section id="description">提醒一下，这个项目是基于<a href="https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-bcrypt/">Glitch</a>的以下入门项目构建的，或者是从<a href="https://github.com/freeCodeCamp/boilerplate-bcrypt/">GitHub</a>克隆的。由于散列设计为计算密集型，因此建议在服务器上异步执行此操作，以避免在散列时阻止传入连接。所有你需要做的就是异步散列密码是调用<code>bcrypt.hash(myPlaintextPassword, saltRounds, (err, hash) => { /*Store hash in your db*/ });</code> <hr>将此散列函数添加到服务器（我们已经定义了函数中使用的变量供您使用）并将其记录到控制台以供您查看！此时，您通常会将哈希值保存到数据库中。现在，当您需要确定新输入是否与散列相同时，您只需使用比较函数<code>bcrypt.compare(myPlaintextPassword, hash, (err, res) => { /*res == true or false*/ });</code> 。在记录完成的哈希并将“res”记录到比较中的控制台之后，将其添加到现有哈希函数中（因为您需要在调用比较函数之前等待哈希完成）。您应该在控制台中看到一个哈希值，然后打印出“true”！如果您将compare函数中的'myPlaintextPassword'更改为'someOtherPlaintextPassword'，那么它应该为false。 <pre> bcrypt.hash（'passw0rd！'，13，（错误，哈希）=> {
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的console.log（散列）; //$2a$12$Y.PHPE15wR25qrrtgGkiYe2sXo98cjuMCG1YwSI5rJW1DSJp0gEYS
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bcrypt.compare（'passw0rd！'，hash，（err，res）=> {
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的console.log（RES）; //真正
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}）;
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}）; </pre>当您认为自己已经做对时，请提交您的页面。 </section>
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## Instructions
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<section id="instructions">
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: 异步哈希生成并正确比较
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testString: 'getUserInput => $.get(getUserInput("url")+ "/_api/server.js") .then(data => { assert.match(data, /START_ASYNC[^]*bcrypt.hash.*myPlaintextPassword( |),( |)saltRounds( |),( |).*err( |),( |)hash[^]*END_ASYNC/gi, "You should call bcrypt.hash on myPlaintextPassword and saltRounds and handle err and hash as a result in the callback"); assert.match(data, /START_ASYNC[^]*bcrypt.hash[^]*bcrypt.compare.*myPlaintextPassword( |),( |)hash( |),( |).*err( |),( |)res[^]*}[^]*}[^]*END_ASYNC/gi, "Nested within the hash function should be the compare function comparing myPlaintextPassword to hash"); }, xhr => { throw new Error(xhr.statusText); })'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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