« This project is the port of LUKS to Android.

[...]

*At this time, this software should be treated as alpha software and used with a grain of paranoid salt. *

While the LUKS project itself has been put through the paces on Linux desktops and servers, we are still determining the right conditions for its secure use on Android. With the many combinations of closed hardware, proprietary basebands, multitudes of kernels, firmwares and other mods, it is fairly impossible to guarantee security for any user. That said, we feel this effort is a useful public step forward in providing an increased level of protection for file storage, and exploring the limits of what we can provide as after-market software developers building open-source tools. »

https://guardianproject.info/fdroid/ => « This is our F-Droid app repository for the official, trusted builds of our apps. There are three ways to access this repo, via an HTTPS connection to our main site, via a Tor Hidden Service, or via an Amazon AWS S3 "Bucket" »