How to Hash SHA-1 in Dart

In this Dart tutorial we learn how to perform SHA-1 hashing in Dart using the crypto library.

Install crypto package in Dart or Flutter

To use the crypto package with Dart, run the following command.

dart pub add crypto

To use the crypto package with Flutter, run the following command.

flutter pub add crypto

The package can be added to your pubspec.yaml as below.

dependencies: 
  crypto: ^3.0.1

How to hash SHA-1 in Dart

In the following Dart program, we use the crypto package to perform SHA-1 hashing which input as a string and return hexadecimal digits string as a result of hashing function.

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

void main() {
  var dataToHash = 'ToriCode';

  var bytesToHash = utf8.encode(dataToHash);
  var digest = sha1.convert(bytesToHash);

  print('Data to hash: $dataToHash');
  print('SHA-1: $digest');
}
The output as below.
Data to hash: ToriCode
SHA-1: 45a6b75826dc9e7c88a8a7c6ac0ee3ba335cc9ba

Happy Coding 😊

How to hash SHA-224 in Dart

How to hash SHA-256 in Dart

How to hash SHA-384 in Dart

How to hash SHA-512 in Dart

How to hash MD5 in Dart