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Tessercube

OpenPGP Made Mobile

OpenPGP Made Mobile

Basic Functionalities:

  • Generate, import, and export keypairs (RSA only for now, ECDSA+ECDH coming soon)
  • Encrypt and decrypt encrypted messages
  • Sign and verify signed messages
  • Unified message history log

Special Features: Tessercube Keyboard

Communicate via OpenPGP in any app, as long as all participants of the conversation have installed Tessercube (or anything supporting OpenPGP implementations).

Packages

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 0.2.5.1 (200) suggested Added on 2020-01-23

    This version requires Android 5.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • android.permission.DOWNLOAD_WITHOUT_NOTIFICATION
    • find accounts on the device
      Allows the app to get the list of accounts known by the phone. This may include any accounts created by applications you have installed.
      (5.1)
    • read your contacts
      Allows the app to read data about your contacts stored on your phone, including the frequency with which you've called, emailed, or communicated in other ways with specific individuals. This permission allows apps to save your contact data, and malicious apps may share contact data without your knowledge.
    • read sync settings
      Allows the app to read the sync settings for an account. For example, this can determine whether the People app is synced with an account.
    • read sync statistics
      Allows an app to read the sync stats for an account, including the history of sync events and how much data is synced.
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • control vibration
      Allows the app to control the vibrator.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
    • toggle sync on and off
      Allows an app to modify the sync settings for an account. For example, this can be used to enable sync of the People app with an account.
    • (5.1)
    • This app can appear on top of other apps
      This app can appear on top of other apps or other parts of the screen. This may interfere with normal app usage and change the way that other apps appear.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.

    Download APK 21 MiB PGP Signature | Build Log