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DEfO ECH Apps

Experimental fork of F-Droid to use TLS ECH with Cloudflare as the default host
This is a demo fork of F-Droid to serve as an example app built on the
development fork of Conscrypt which supports TLS Encrypted ClientHello
(ECH). ECH is the next version of the TLS protocol that encrypts
internet traffic and puts the "S" in HTTPS. It makes it possible to
encrypt all of the metadata that is possible to encrypt in the TLS
negogiation. It is a test case for interoperability between various
implementations, platforms, and networks.

The Encrypted ClientHello (ECH) mechanism (IETF draft spec) is a way to
plug a few privacy-holes that remain in the Transport Layer Security
(TLS) protocol that's used as the security layer for the web. OpenSSL
is a widely used library that provides an implementation of the TLS
protocol. The DEfO project is developing an implementation of ECH for
OpenSSL, and various clients and servers that use OpenSSL as a
demonstration and for interoperability testing.

DEfO was initially funded by the Open Technology Fund, and
subsequently by the National Democratic Initiative. Tolerant Networks
Ltd. and people from the Guardian Project are doing the work in DEfO.

Versions

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 (1014051) suggested Added on 2022-03-21

    This version requires Android 5.1 or newer.

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

    Permissions
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • view Wi-Fi connections
      Allows the app to view information about Wi-Fi networking, such as whether Wi-Fi is enabled and name of connected Wi-Fi devices.
    • allow Wi-Fi Multicast reception
      Allows the app to receive packets sent to all devices on a Wi-Fi network using multicast addresses, not just your phone. It uses more power than the non-multicast mode.
    • change network connectivity
      Allows the app to change the state of network connectivity.
    • connect and disconnect from Wi-Fi
      Allows the app to connect to and disconnect from Wi-Fi access points and to make changes to device configuration for Wi-Fi networks.
    • pair with Bluetooth devices
      Allows the app to view the configuration of the Bluetooth on the phone, and to make and accept connections with paired devices.
    • access Bluetooth settings
      Allows the app to configure the local Bluetooth phone, and to discover and pair with remote devices.
    • 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.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
    • modify system settings
      Allows the app to modify the system's settings data. Malicious apps may corrupt your system's configuration.
    • control Near Field Communication
      Allows the app to communicate with Near Field Communication (NFC) tags, cards, and readers.
    • android.permission.USB_PERMISSION
      (5.1)
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • run foreground service
      Allows the app to make use of foreground services.

    Download APK 11 MiB PGP Signature | Build Log

  • Version 0.1 (1014050) - Added on 2022-03-10

    This version requires Android 5.1 or newer.

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

    Permissions
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • view Wi-Fi connections
      Allows the app to view information about Wi-Fi networking, such as whether Wi-Fi is enabled and name of connected Wi-Fi devices.
    • allow Wi-Fi Multicast reception
      Allows the app to receive packets sent to all devices on a Wi-Fi network using multicast addresses, not just your phone. It uses more power than the non-multicast mode.
    • change network connectivity
      Allows the app to change the state of network connectivity.
    • connect and disconnect from Wi-Fi
      Allows the app to connect to and disconnect from Wi-Fi access points and to make changes to device configuration for Wi-Fi networks.
    • pair with Bluetooth devices
      Allows the app to view the configuration of the Bluetooth on the phone, and to make and accept connections with paired devices.
    • access Bluetooth settings
      Allows the app to configure the local Bluetooth phone, and to discover and pair with remote devices.
    • 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.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
    • modify system settings
      Allows the app to modify the system's settings data. Malicious apps may corrupt your system's configuration.
    • control Near Field Communication
      Allows the app to communicate with Near Field Communication (NFC) tags, cards, and readers.
    • android.permission.USB_PERMISSION
      (5.1)
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • run foreground service
      Allows the app to make use of foreground services.

    Download APK 11 MiB PGP Signature | Build Log

  • Version 0.0 (1014003) - Added on 2021-12-07

    This version requires Android 5.1 or newer.

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

    Permissions
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • view Wi-Fi connections
      Allows the app to view information about Wi-Fi networking, such as whether Wi-Fi is enabled and name of connected Wi-Fi devices.
    • allow Wi-Fi Multicast reception
      Allows the app to receive packets sent to all devices on a Wi-Fi network using multicast addresses, not just your phone. It uses more power than the non-multicast mode.
    • change network connectivity
      Allows the app to change the state of network connectivity.
    • connect and disconnect from Wi-Fi
      Allows the app to connect to and disconnect from Wi-Fi access points and to make changes to device configuration for Wi-Fi networks.
    • pair with Bluetooth devices
      Allows the app to view the configuration of the Bluetooth on the phone, and to make and accept connections with paired devices.
    • access Bluetooth settings
      Allows the app to configure the local Bluetooth phone, and to discover and pair with remote devices.
    • 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.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
    • modify system settings
      Allows the app to modify the system's settings data. Malicious apps may corrupt your system's configuration.
    • control Near Field Communication
      Allows the app to communicate with Near Field Communication (NFC) tags, cards, and readers.
    • android.permission.USB_PERMISSION
      (5.1)
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • run foreground service
      Allows the app to make use of foreground services.

    Download APK 11 MiB PGP Signature | Build Log