Argon2id class abstract

Argon2id (draft-irtf-cfrg-argon2-03) password hashing function.

Argon2 is known for winning Password Hashing Competition 2015. The algorithm can provide much better security than older algorithms such as Pbkdf2.

By default, DartArgon2id, our pure Dart implementation, will be used.

Example

import 'package:cryptography/cryptography.dart';

Future<void> main() async {
  final algorithm = Argon2id(
    parallelism: 3,
    memorySize: 10000000,
    iterations: 3,
    hashLength: 32,
  );

  final newSecretKey = await algorithm.deriveKey(
    secretKey: SecretKey([1,2,3]),
    nonce: [4,5,6],
  );
  final newSecretKeyBytes = await newSecretKey.extractBytes();

  print('hashed password: $newSecretKeyBytes');
}

In need of synchronous APIs?

If you need to perform operations synchronously, use DartArgon2id in package:cryptography/dart.dart.

Inheritance
Implementers

Constructors

Argon2id({required int parallelism, required int memorySize, required int iterations, required int hashLength})
factory
Argon2id.constructor()
Constructor subclasses.
const

Properties

hashCode → int
The hash code for this object.
no setteroverride
hashLength → int
Hash length.
no setter
iterations → int
Number of iterations.
no setter
memorySize → int
Minimum number of bytes attacker needs to store in memory for each attempt.
no setter
parallelism → int
Maximum number of processors attacker can use concurrently for each attempt.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
version → int
Argon2id algorithm version number.
no setter

Methods

deriveKey({required SecretKey secretKey, required List<int> nonce, List<int> k = const <int>[], List<int> ad = const <int>[]}) → Future<SecretKey>
Calculates output of Argon2id algorithm.
override
deriveKeyFromPassword({required String password, required List<int> nonce}) → Future<SecretKey>
Generates a new secret key from a password and a nonce.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
override

Operators

operator ==(Object other) → bool
The equality operator.
override