mirror of https://github.com/jkjoy/sunpeiwen.git
14 lines
222 B
JavaScript
14 lines
222 B
JavaScript
|
var crypto = require('crypto')
|
||
|
var max = Math.pow(2, 32)
|
||
|
|
||
|
module.exports = random
|
||
|
module.exports.cryptographic = true
|
||
|
|
||
|
function random () {
|
||
|
var buf = crypto
|
||
|
.randomBytes(4)
|
||
|
.readUInt32BE(0)
|
||
|
|
||
|
return buf / max
|
||
|
}
|