49 lines
824 B
JavaScript
49 lines
824 B
JavaScript
var crypto = require('crypto')
|
|
|
|
/**
|
|
*
|
|
* @param {number} len
|
|
*/
|
|
var random = (len = 32) => {
|
|
var buf = crypto.randomBytes(len)
|
|
return buf.toString('hex')
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {string} str
|
|
*/
|
|
var sha256 = (str) => {
|
|
return crypto.createHash('sha256').update(str).digest('base64')
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {string} str
|
|
*/
|
|
var genPassHash = (str) => {
|
|
var hash = random(16)
|
|
var pass = sha256(str + hash)
|
|
return `$${hash}$${pass}`
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {string} plain
|
|
* @param {string} hash
|
|
*/
|
|
var comparePass = (plain, hash) => {
|
|
var match = hash.match(/^\$(.+?)\$(.+)$/)
|
|
if (match == null || match.length < 3 || !match[1] || !match[2]) return false
|
|
var pass = sha256(plain + match[1])
|
|
if (pass === match[2]) return true
|
|
return false
|
|
}
|
|
|
|
module.exports = {
|
|
random,
|
|
sha256,
|
|
genPassHash,
|
|
comparePass
|
|
}
|