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Smoke

Echo communications through Android.
New in version 2024.06.25
* GitHub ticket #48. The oid variable in Fire::deleteFire() may not be
defined and referencing a tarnished variable will terminate Smoke.
Summary of Smoke

* Aliases. Preserve your contacts.
* Almost zero-dependency software.
* Application lock.
* Argon2id and PBKDF2 key-derivation functions.
* Automatic, oscillatory public-key exchange protocol, via SipHash.
* BSD 3-clause license.
* Completed.
* Content is recorded via authenticated encryption.
* Decentralized. TCP, and UDP multicast and unicast.
* Does not require Internet connectivity.
* Does not require registration. Telephone numbers are not required.
* Encrypted communications.
* Eventful tasks. Limited polling.
* F-Droid.
* Fiasco forward secrecy.
* Future-proof software.
* Introduces Cryptographic Discovery. Cryptographic Discovery is a
practical protocol which creates coordinated data paths.
* Juggling Juggernaut Protocol!
* Manufactured tool tips!
* McEliece Fujisaka and Pointcheval.
* Message structures do not explicitly expose contents. Header-less protocols!
Some messages do include type information.
* Mobile servers via SmokeStack.
* Obfuscation of resident secret keys.
* Optional foreground services.
* Optional silence over the wires.
* Original implementation of SipHash.
* Ozone destinations: private and public repositories.
* Post offices for messages of the past.
* Private servers.
* Public and private public-key servers.
* Rainbow digital signature scheme.
* Reliable distribution of archived messages.
* Reliable distribution of deliverable text messages.
* SPHINCS digital signature scheme.
* SSL/TLS through SmokeStack.
* Semi-compatible with Spot-On via Fire.
* Share files with TCP utilities such as Netcat.
* SipHash-128.
* Smoke and mirrors.
* Software congestion control.
* Software manual included.
* Steam, reliable file sharing. TCP over the Echo!
* Steamrolling, or, real-time broadcasting of inbound Steams to fellow participants.
* Super McEliece: m = 13, t = 118.
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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 2024.06.25 (20240625) suggested Added on Jun 28, 2024

    This version requires Android 7.1 or newer.

    It is built 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.
    • run foreground service
      Allows the app to make use of foreground services.
    • 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.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.

    Download APK 3.9 MiB PGP Signature | Build Log

  • Version 2024.01.05 (20240105) - Added on Jan 07, 2024

    This version requires Android 7.1 or newer.

    It is built 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.
    • run foreground service
      Allows the app to make use of foreground services.
    • 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.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.

    Download APK 3.9 MiB PGP Signature | Build Log

  • Version 2023.12.25 (20231225) - Added on Dec 27, 2023

    This version requires Android 9.0 or newer.

    It is built 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.
    • run foreground service
      Allows the app to make use of foreground services.
    • 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.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.

    Download APK 8.0 MiB PGP Signature | Build Log