# create-hmac
[](https://www.npmjs.org/package/create-hmac)
[](https://travis-ci.org/crypto-browserify/createHmac)
[](https://david-dm.org/crypto-browserify/createHmac#info=dependencies)
[](https://github.com/feross/standard)
Node style HMACs for use in the browser, with native HMAC functions in node. API is the same as HMACs in node:
```js
var createHmac = require('create-hmac')
var hmac = createHmac('sha224', Buffer.from('secret key'))
hmac.update('synchronous write') //optional encoding parameter
hmac.digest() // synchronously get result with optional encoding parameter
hmac.write('write to it as a stream')
hmac.end() //remember it's a stream
hmac.read() //only if you ended it as a stream though
```