add README

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Mark Vayngrib
2015-11-19 20:09:49 +00:00
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# react-native-randombytes
## Usage
Note: only the asynchronous API is supported, due to the limitations of having to go over the RCTBridge, and there being no secure RNG in JavaScriptCore (Math.random is a bit of a joke in the industry)
```js
var randomBytes = require('react-native-randombytes')
randomBytes(4, (err, bytes) => {
console.log(bytes.toString('hex'))
})
```
## Installation
### `iOS`
* Drag RNRandomBytes.xcodeproj from node_modules/react-native-randombytes into your XCode project.
* Click on the project in XCode, go to Build Phases, then Link Binary With Libraries and add `libRNRandomBytes.a`
Confused? See an example with screenshots [here](http://facebook.github.io/react-native/docs/linking-libraries-ios.html#content)