Huge News!Announcing our $40M Series B led by Abstract Ventures.Learn More
Socket
Sign inDemoInstall
Socket

scrypt-async-modern

Package Overview
Dependencies
Maintainers
1
Versions
13
Alerts
File Explorer

Advanced tools

Socket logo

Install Socket

Detect and block malicious and high-risk dependencies

Install

scrypt-async-modern

Fast "async" scrypt implementation in modern JavaScript.

  • 3.0.12
  • latest
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
1.4K
decreased by-22.41%
Maintainers
1
Weekly downloads
 
Created
Source

scrypt-async-modern npm version

Fast "async" scrypt implementation in modern JavaScript.

Works in browsers without throwing "kill slow script" warnings due to configurable interruptStep, which yields from calculation. Also works with Node.js (but you should really use the C implementation for that).

Installation

Yarn:

$ yarn add scrypt-async-modern

NPM:

$ npm install scrypt-async-modern

To improve performance with small interruptStep values, use setImmediate shim, such as https://github.com/YuzuJS/setImmediate.

Usage

scrypt(password, salt, options): Promise

Derives a key from password and salt and fulfills a Promise with the derived key as the only argument.

If options.interruptStep is set, calculations are interrupted with setImmediate (or zero setTimeout) at the given interruptSteps to avoid freezing the browser. If it's not set or set to zero, the callback is called immediately after the calculation, avoiding setImmediate.

Arguments

  • password: string or Array of bytes or Uint8Array
  • salt: string or Array of bytes or Uint8Array
  • options: object with key derivation options (see below)
Options:
  • N: CPU/memory cost parameter, must be power of two (default = 16384), alternatively you can specify logN where N = 2^logN
  • r: block size parameter (default = 8)
  • p: parallelization parameter (default = 1)
  • dkLen: derived key length (default = 32)
  • interruptStep: (optional) the amount of loop cycles to execute before the next setImmediate/setTimeout (defaults = 0)
  • encoding: (optional) result encoding 'base64' or 'hex' (result will be a string), 'binary' (result will be a Uint8Array) or undefined (result will be an Array of bytes, default).

Example:

const derivedKey = await scrypt("mypassword", "saltysalt", {
  N: 16384,
  r: 8,
  p: 1,
  dkLen: 16,
  encoding: "hex"
});

console.log(derivedKey); // "5012b74fca8ec8a4a0a62ffdeeee959d"

Notes

Fork of dchest/scrypt-async-js.

MIT license.

Keywords

FAQs

Package last updated on 06 Jan 2020

Did you know?

Socket

Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.

Install

Related posts

SocketSocket SOC 2 Logo

Product

  • Package Alerts
  • Integrations
  • Docs
  • Pricing
  • FAQ
  • Roadmap
  • Changelog

Packages

npm

Stay in touch

Get open source security insights delivered straight into your inbox.


  • Terms
  • Privacy
  • Security

Made with ⚡️ by Socket Inc