Error: 'default' is not exported by node_modules/rollup-plugin-node-polyfills/polyfills/buffer-es6.js, imported by node_modules/rollup-plugin-node-polyfills/polyfills/crypto-browserify.js

index.js:

```
import { createCipheriv, createDecipheriv, pbkdf2Sync } from 'crypto'
```

rollup.config.js:

```
import nodePolyfills from 'rollup-plugin-node-polyfills';

export default {
input: 'src/index.js',
output: {
dir: 'dist',
format: 'iife'
},
plugins: [
nodePolyfills({
buffer: true,
crypto: true
})
]
}

```

Reproduce the reported build using index.js and rollup.config.js with nodePolyfills configured for buffer and crypto. Start by tracing the imports between crypto-browserify.js and buffer-es6.js, and consider the build complete when the IIFE output is generated without the missing-default-export error.

Vom Indexierungsmodell aus dem Issue-Text verfasst.