npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

rbytes

v1.1.0

Published

Generates cryptographically secure random byte sequences

Downloads

19

Readme

rbytes

Generates cryptographically secure random byte sequences

rbytes generates cryptographically secure random byte sequences using native bindings to OpenSSL's pseudo random number generator. Use rbytes to generate session keys, UUIDs or anything else that requires fast generation of blocks of random data.

Synopsis

Create a buffer holding 16 random bytes:

var rbytes = require('rbytes');

var rbuff = rbytes.randomBytes(16);
// <Buffer 69 5d 5d f6 42 04 1b 86 f2 77 5d 2b 4f 0f 72 26>

rbytes adds two convenience methods to Node's Buffer class for easy conversion between Buffers and hex strings:

rbuff.toHex();
// '695d5df642041b86f2775d2b4f0f7226'

var buff = Buffer(1);
buff.writeHex('f);
// <Buffer 0f>

buff.writeHex('g);
// TypeError: Invalid hex string

Installation

$ npm install rbytes

rbytes requires node version 0.3.0 or higher.

Notes

rbytes binds to OpenSSL's RAND_bytes function, which generates cryptographically strong pseudorandom bytes. This function does not block, however it will throw an error if there isn't enough random seed data on your system. Support is planned for RAND_pseudo_bytes, which are guaranteed to be available at the cost of being (potentially) less secure.

Simple random number generation (like Math.rand()) is planned for a future version.