vaginessa / cometotp

A powerful two-factor authentication app for Android

CometOTP - OTP Authenticator for Android

CometOTP is a powerful two-factor authentication App for Android.

It implements Time-based One-time Passwords (TOTP) like specified in RFC 6238.
Simply scan the QR code and login with the generated 6-digit code.

This is a fork of the great OTP Authenticator app written by Bruno Bierbaumer, which has sadly been inactive since 2015. All credit for the original version goes to Bruno.

Features:

• Free and Open-Source
• Requires minimal permissions
  • Camera access for QR code scanning
  • Storage access for import and export of the database
• Encrypted storage
• Multiple backup options:
  • Plain-text
  • Password-protected
  • OpenPGP-encrypted
• Sleek minimalistic Material Design with a Dark and Light theme
• Great Usability
• Compatible with Google Authenticator

Backups:

To keep your account information as secure as possible CometOTP only stores it in encrypted data files. A part of the encryption key used for that is stored in the Android KeyStore system. The advantage of this approach is that the key is kept separate from the apps data and, as a bonus, can be backed by hardware cryptography (if your device supports this).

However, due to that separation, backups with 3rd-party apps like Titanium Backup can not be used with CometOTP. Such apps only backup the encrypted data files and not the encryption key, which renders them useless.

Please only use the internal backup functions provided by andOTP to backup your accounts! Everything else WILL result in data loss.

Opening the backups on your PC:

• OpenPGP: OpenPGP can be used to easily decrypt the OpenPGP-encrypted backups on your PC.
• andOTP-decrypt: A python script written by @asmw to decrypt password-protected backups on your PC (needs more testing).

Migration:

Check out this wiki page to learn about the different ways to migrate to CometOTP from other 2FA apps.

Contribute:

• Translation: If you want to help translate andOTP into your language head over to this place.
• Bug reports and feature requests: You can report bugs and request features in the Issue tracker on GitHub.
• Requesting thumbnails: If you are missing a thumbnail you can request it by editing the wiki

Translators:

	Language	Translators
🇨🇳	Chinese Simplified (zh-rCN)	Cp0204
🇨🇿	Czech (cs-rCZ)	Picard0147
🇳🇱	Dutch (nl-rNL)	Toon, rain2reign
🇫🇷	French (fr-rFR)	Johan Fleury, David Sferruzza, Primokorn
	Galician (gl-rES)	Triskel
🇩🇪	German (de-rDE)	SuperVirus
🇵🇱	Polish (pl-rPL)	Daniel Pustuła
🇷🇺	Russian (ru-rRU)	Victor Nidens, Ilia Drogaitsev, Dmitry
🇪🇸	Spanish (es-rES)	Carlos Melero

Screenshots:

<img width=200 alt="Thumbnails src="https://raw.githubusercontent.com/gigabytedevelopers/CometOTP/master/assets/screenshots/thumbs3.png">

Acknowledgments:

Open-source components used:

• Apache Commons Codec
• Expandable Layout
• LicensesDialog
• MaterialProgressBar
• OpenPGP API library
• VNTNumberPickerPreference
• ZXing Android Embedded

Code examples used:

• Android-ItemTouchHelper-Demo
• Code Parts from Google's Android Samples
• FloatingActionMenuAndroid
• LetterBitmap
• DimensionConverter

License:

Copyright (C) 2018 Gigabyte Developers
Copyright (C) 2017 Jakob Nixdorf
Copyright (C) 2015 Bruno Bierbaumer
Copyright (C) 2015 Google (Google Developers) - Google Authenticator

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in the
Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
OR OTHER DEALINGS IN THE SOFTWARE.