Time-based One-Time Password (TOTP) #

This is an implementation of the TOTP algorithm as specified in RFC 6238.

Installation #

Add the following to your pubspec.yaml:

dependencies:
  totp: latest

Or install it from the command line:

dart pub add totp

import 'package:totp/totp.dart';

final totp = Totp(secret: '12345678901234567890'.codeUnits);

print(totp.now());

If you want to use a base32 encoded secret, you can use the fromBase32 constructor:

final totp = Totp.fromBase32(
  secret: 'GEZDGNBVGY3TQOJQGEZDGNBVGY3TQOJQ',
);

Method	Return type	Description
`generate`	`String`	Generates a new password with a `DateTime`
`now`	`String`	Generates a new password with `DateTime.now()`
`validate`	`bool`	Validates a password with a `DateTime`
`remaining`	`int`	Generate remaining time by calculate from `period` and `DateTime`

The project is licensed under the MIT license.