Highly secure and easy to use GTK+ software for two-factor authentication that supports both Time-based One-time Passwords (TOTP) and HMAC-Based One-Time Passwords (HOTP).
| Name | Min Version | Suggested Min Version |
|---|---|---|
| GTK+ | 3.18 | 3.22 |
| Glib | 2.48.0 | 2.50 |
| jansson | 2.6.0 | - |
| libgcrypt | 1.6.0 | - |
| libzip | 1.0.0 | - |
| libpng | 1.2.0 | - |
| libcotp | 1.2.1 | - |
| zbar | 0.10 | 0.20 (linuxtv) |
- support both TOTP and HOTP
- support setting custom digits (between 4 and 10 inclusive)
- support setting a custom period (between 10 and 120 seconds inclusive)
- support SHA1, SHA256 and SHA512 algorithms
- support for Steam codes (please read THIS PAGE)
- import encrypted Authenticator Plus backup
- import and export encrypted and/or plain andOTP backup
- local database is encrypted using AES256-GCM
- key is derived using PBKDF2 with SHA512 and 100k iterations
- decrypted file is never saved (and hopefully never swapped) to disk. While the app is running, the decrypted content resides in a "secure memory" buffer allocated by Gcrypt
For things like roadmap, screenshots, how to use OTPClient, etc, please have a lookt at the project's wiki. You'll find a lot of useful information there.
If OTPClient hasn't been packaged for your distro (check here) and your distro doesn't support Flatpak, then you'll have to manually compile and install OTPClient.
- install all the needed libraries listed under requirements
- clone and install OTPClient:
$ git clone https://github.com/paolostivanin/otpclient OTPClient
$ cd OTPClient
$ mkdir build && cd $_
$ cmake -DCMAKE_INSTALL_PREFIX=/usr ..
$ make
$ sudo make install
This software is released under the GPLv3 license. Please have a look at the LICENSE file for more details.