Javascript 如何使用加密创建随机盐哈希
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How to create random-salt-hash with crypto
提问by dev.pus
I want to create a salt-hash using node.js crypto lib without having to parse any hardcoded data.
我想使用 node.js 加密库创建一个 salt-hash,而不必解析任何硬编码数据。
What do I mean with hardcoded?
硬编码是什么意思?
var salt, hardcodedString = "8397dhdjhjh";
crypto.createHmac('sha512', hardcodedString).update(salt).digest("base64");
Isn't there any other way how I can create a random string without using raw javascript, random functions or hardcoding something?
没有其他方法可以在不使用原始 javascript、随机函数或硬编码的情况下创建随机字符串吗?
Regards
问候
UPDATE
更新
var Crypto = require('crypto')
, mongoose = require('mongoose');
module.exports = mongoose.model('User', new mongoose.Schema({
username: {
type: String
, required: true
, index: { unique: true, sparse: true }
, set: toLower
},
email: {
type: String
, required: true
, index: { unique: true, sparse: true }
, set: toLower
},
salt: {
type: String
, set: generateSalt
},
password: {
type: String
, set: encodePassword
}
}),'Users');
function toLower(string) {
return string.toLowerCase();
}
function generateSalt() {
//return Math.round((new Date().valueOf() * Math.random())) + '';
Crypto.randomBytes('256', function(err, buf) {
if (err) throw err;
return buf;
});
// return Crypto.randomBytes('256'); // fails to
}
function encodePassword(password) {
return password;
// TODO: setter has no access to this.salt
//return Crypto.createHmac('sha512', salt).update(password).digest("base64");
}
function authenticate(plainPassword) {
return encodePassword(plainPassword) === this.password;
}
回答by CodesInChaos
A quick look at the documentation turns up the crypto.randomBytes
function.
快速浏览一下文档就会发现这个crypto.randomBytes
功能。
var buf = crypto.randomBytes(16);
This returns a buffer containing raw bytes. If you want a string, you can use toString('base64')
or toString('hex')
.
这将返回一个包含原始字节的缓冲区。如果你想要一个字符串,你可以使用toString('base64')
或toString('hex')
。