encrypt is a small application which has been designed, from the beginning (all three of them so far), to be as simple to use as is practical. The idea is small and simple, yet with encryption that aims to be a strong as possible, while also giving the user the choice about how their data is secured.

It is mostly written in C, and uses the GTK for the GUI (version 3.0 or later), to help increase the portability and usefulness across many different operating systems. All of the cryptographic functions are provided by libgcrypt; this increases the number of available algorithms for the end user, and also ensures that the implementations are correct and (largely) free of (serious) bugs :-)

Not only do we have an Android version, but we also now have a native release for Mac OS X! (Of course if you would prefer, you can still build an X11 version using Homebrew and following the typical *nix instructions in the documentation.)

Currently we provide 64 bit binary packages—with GUI—for Arch, Debian, Fedora, Slackware, FreeBSD, Solaris 11, Apple’s OS X, as well as Microsoft Windows. The DEB package should be compatible with the latest version of Ubuntu, and the RPM is (mostly) compatible with SUSE (it might complain that it cannot satisfy the cURL dependency but this can be ignored; you just won’t be prompted when a new version of encrypt is available). The Windows package has been built and tested on Windows 11. We’re still working on an ebuild file for Gentoo, but it does compile and run without any issues provided you’re willing to do some manual dependency management.

It’s this level of portability and simplicity which we hope will make encrypt more useful to people who use different operating systems in different situations: home, office, on the go, etc. as it uses the same algorithms and interface. Be aware that the Whirlpool algorithm is different on desktops versus Android.

NB: It has been noted that some characters, when used in the password, aren’t completely cross-platform; for instance the character £ doesn’t play well on Android devices.

Binary packages, and GPG signatures, for version 2024.01 are available below (as well as at Sourceforge):

OS	Package	GPG Signature	Screenshots
Arch Linux	pkg	Signature	GTK+3 / Xfce
Debian	deb	Signature	See above
Fedora	rpm	Signature	See above
Slackware	tgz	Signature	See above
FreeBSD	txz	Signature	See above
Solaris	pkg	Signature	See above
Windows	exe	Signature	GTK+3 / Windows
OS X	pkg¹	Signature	Native OS X
Android	Paid/Free	Signature (Free)	Nougat
Desktop Source	.tar.xz or .zip	Signature or Zip Sig	See above
Android Source	.tar.xz or .zip	Signature or Zip Sig	See above

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A demo of using the CLI can be found over on asciinema, whereas a GUI demo can be found within the pixmaps directory as well as on YouTube.

¹ At the moment, the OS X app isn’t signed by Apple and as such you will be presented with a warning about encrypt being untrusted. This can be overridden in the security settings.