Open Two-Factor Authenticator

An open-source two-factor Time-based One-Time Password (TOTP) authenticator with SHA-256 secure storage

What is Open Two-Factor Authenticator?

Open Two-Factor Authenticator is an open-source two-factor TOTP extension for your browser and Android device. It provides a secure storage solution for your encrypted keys using SHA-256. This extension utilises browser's synced storage allowing you to securely share secrets across multiple devices. It supports Firefox, Chrome, Edge, and Opera browsers, with Android compatibility in progress. Notably, it does not store passwords and operates without server-side activities.

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Extension stats

By: https://add0n.com

View on Chrome Web Store

Users: 10,000+

Rating: 3.20 (10)

Version: 0.3.3 (Last updated: 2024-11-20)

Creation date: 2019-09-12

Risk impact: Low risk impact

Risk likelihood: Very low risk likelihood

Manifest version: 3

Permissions:

storage
notifications

Size: 275.46K

Email: in*****@gmail.com

URLs: Website ,Privacy policy

Ranking

# 10010 ▼ 38

Other rankings

#590 in Workflow & Planning ▼ 7 #132 in firefox keyword 22 ▲ 8 #137 in android keyword 13 #190 in encrypt keyword 21 ▲ 8

Other platforms

Open Two-Factor Authenticator (v0.3.3)

3.75

(4) 298

Open Two-Factor Authenticator (v0.3.0)

4.00

(3) 5,838+

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Extension summary

Analyze keywords

Open Two-Factor Authenticator aims to provide an open-source two-factor authentication to browsers and Android devices with synced storage.

By using this extension, you can have your encrypted keys stored in the browser's synced storage. This allows you to sync them across multiple devices. This extension uses the public key/private key method to encrypt stored data (SHA-256).

Currently, Open Two-Factor Authenticator supports Firefox on Desktop, Firefox on Android, Chrome, Edge, and Opera browsers. Standalone Android implantation is still in progress.

Features:

Stores secrets securely using AES-CBC encryption.
Does not store passwords
Does not have any server-side activities whatsoever
Uses synced storage, so secrets are securely shared between multiple devices.
Supports custom number of digits and custom validation period

User reviews

Darrick Ng, 2024-03-25

no import

John Weiss, 2021-04-29

Werkt prima. Onhandige is, dat er geen optie bij zit om de code te kopiëren. En omdat het schermpje over je scherm opent waar je code moet invoeren, is enige optie de code te selecteren, rechtermuisknop en dan code kopiëren. Op zich prima, als er daardoor niet een spatie in het midden van de code wordt meegenomen (code bestaat uit 2x 3 cijfers). Voordat ik dat doorhad...Nu moet ik die spatie iedere keer verwijderen na het plakken. Room for improvement!