react-native-sha256

sha256 natively for react-native

Speed is king, especially for javascript-driven applications with react-native!
This library provides native sha256-hashes for a string on both iOS and Android
natively.

Installation

``
yarn add react-native-sha256
react-native link
`

Adding with CocoaPods

Add the RNSha256 pod to your list of application pods in your Podfile, using the path from the Podfile to the installed module:

`
pod 'RNSha256', :path => '../node_modules/react-native-sha256'
`

Install pods as usual:
`
pod install
`

Usage

Import the lib into your project:

`javascript
import { sha256, sha256Bytes } from 'react-native-sha256';
`

Build a sha256-hash:

`javascript
sha256("Test").then( hash => {
console.log(hash);
})
`

`javascript
const message = new Uint8Array(8);
const bytes = Array.from(message);

sha256Bytes(bytes).then( hash => {
console.log(hash);
})
``

File-Hashes

If you need to calculate SHA-256 hashes from a file, use this method of react-native-fs:
(https://github.com/itinance/react-native-fs#hashfilepath-string-algorithm-string-promisestring)