@cryptography/sha256


High-performance synchronous SHA-256 implementation for JavaScript. Optimized for browsers.

Features

* Blazing fast
* Ultra lightweight
* ECMAScript 3-6
* Typed
* Tested

Setup

Package is available through npm and yarn
`
npm install @cryptography/sha256
`
`
yarn add @cryptography/sha256
``

Usage

This package is optimized for small byte inputs (<10kb).

Also, it is highly recommended to run CPU-intensive tasks in a Web Worker.
`js
import sha256 from '@cryptography/sha256'

// as Uint32Array([0xa8d627d9, 0x3f518e90, 0x96b6f40e, 0x36d27b76, 0x60fa26d3, 0x18ef1adc, 0x43da750e, 0x49ebe4be])
const array = sha256('Hello World!')

// as hex-string: "a8d627d93f518e9096b6f40e36d27b7660fa26d318ef1adc43da750e49ebe4be"
const hex = sha256('Hello World!', 'hex')

// as binary string: "ÄïükYo‡UH
½LÛ,Zß\nNÆêE©¡‡M¢"
const raw = sha256('Hello World!', 'binary')

// UInt32Array as input
const buf = new Uint32Array([0xa8d627d9, 0x3f518e90, 0x96b6f40e, 0x36d27b76, 0x60fa26d3, 0x18ef1adc, 0x43da750e, 0x49ebe4be]);
sha256(buf)
``
For hashing large files or other data chuncks use stream() to create a hashing stream.
`js
sha256.stream().update('Hello World!').digest();
``

Benchmarks

Faster than forge, sjcl and WebCrypto API in sequence mode.

$3

!Macbook 2016 perfromance

$3

!iPhone 6S perfromance

$3

* http://jsben.ch/Um0Uc
* https://jsbench.me/i1k3b0xrvy/4

Contributing

Contributions are welcome! Contribution guidelines will be published soon.