A partial implementation of the W3C Crypto API for Expo
Last updated 2 months ago by ide .
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$ cnpm install expo-standard-web-crypto 
SYNC missed versions from official npm registry.


A partial implementation of the W3C Crypto API for Expo

API documentation

This package provides a partial polyfill of the W3C Crypto API for Expo. Namely, Crypto#getRandomValues() is implemented. See the W3C Crypto specification for the API documentation.

Installation in Expo projects

First follow the instructions for installing expo-random, which is required by this package. Then install this package.

Add the package to your npm dependencies

npm install expo-standard-crypto

Using the polyfill

There are two ways to use this package: you can import a Crypto instance or you can globally define crypto. Some code may expect the latter.

Importing a Crypto instance:

import crypto from 'expo-standard-web-crypto';

Globally defining crypto:

import { polyfillWebCrypto } from 'expo-standard-web-crypto';

// crypto is now globally defined

In either case, if your runtime environment already defines crypto globally, this package uses that instance instead of providing its own.


Contributions are very welcome! Please refer to guidelines described in the contributing guide.

Current Tags

  • 1.0.0-beta.0                                ...           latest (2 months ago)
  • 1.0.0                                ...           next (12 days ago)

2 Versions

  • 1.0.0                                ...           12 days ago
  • 1.0.0-beta.0                                ...           2 months ago

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