* [Firejail](https://firejail.wordpress.com/) - A SUID program that reduces the risk of security breaches by restricting the running environment of untrusted applications using Linux namespaces and seccomp-bpf.
* [GnuPG](https://gnupg.org/) - GnuPG is a complete and free implementation of the OpenPGP standard as defined by RFC4880 (also known as PGP).
* [gocryptfs](https://nuetzlich.net/gocryptfs) - An encrypted overlay filesystem written in Go.
* [gpg-tui](https://github.com/orhun/gpg-tui) - Manage your GnuPG keys with ease!
* [hashcat](https://hashcat.net/hashcat/) - A robust and efficient password cracking tool that can help you recover lost passwords, audit password security, benchmark, or just figure out what data is stored in a hash.
* [Image Steganography Tool](https://github.com/7thSamurai/steganography) - Simple C++ Encryption and Steganography tool that uses Password-Protected-Encryption to secure a file's contents.
* [jdvrif](https://github.com/CleasbyCode/jdvrif) - CLI tool to embed or extract files via a JPG image. Post & share your embedded JPG image on compatible sites.