This makes it impractical for a nearby attacker to brute-force the password in order to inject malware into the download.
Briar
Briar is a messaging app designed for activists, journalists, and anyone else who needs a safe, easy and robust way to communicate.
Unlike traditional messaging apps, Briar doesn't rely on a central server - messages are synchronized directly between the users' devices.
If the Internet's down, Briar can sync via Bluetooth or Wi-Fi, keeping information flowing in a crisis. If the Internet's up, Briar can sync via the Tor network, protecting users and their relationships from surveillance.
Download Briar
You can also download the APK file directly from our site.
Useful links
Reproducible builds
We provide docker images to ease the task of verifying that the published APK binaries include nothing but our publicly available source code.
You can either use those images or use them as a blueprint to build your own environment for reproduction.

