# Calculate sha256 hash in dart

Use the `crypto` package we can calculate sha hash:

Install:
```bash
$ dart pub add crypto
```

Example:

```dart
import 'dart:convert';
import 'package:crypto/crypto.dart';

String sha256hash(String s) {
  var bytes = utf8.encode(s); // data being hashed
  return sha256.convert(bytes).toString();
}
```

## Reference
* https://pub.dev/packages/crypto