random-poly-fill

A polyfill for crypto.randomFill and crypto.randomFillSync from Node.js core.

These two functions were added in Node.js v6.13.0. Use this polyfill if you need to use these function in older versions of Node.js.

This polyfill is not optimized for speed or low resource usage. If you can, use crypto.randomBytes directly instead.

Installation

npm install random-poly-fill --save

Usage

1const { randomFill, randomFillSync } = require('random-poly-fill')
2
3const source = Buffer.alloc(10)
4
5randomFill(source, 0, 5, function (err, target) {
6  if (err) throw err
7  console.log(source.toString('hex')) // fc4584c64a0000000000
8  console.log(target.toString('hex')) // fc4584c64a0000000000
9})
10
11const buf = Buffer.alloc(10)
12
13randomFillSync(buf, 5, 5)
14
15console.log(buf.toString('hex')) // 0000000000bcc09d5877

API

crypto.randomFill(buffer[, offset][, size], callback)

See Node.js core documentation for crypto.randomFill.

crypto.randomFillSync(buffer[, offset][, size])

See Node.js core documentation for crypto.randomFillSync.

License

MIT