Tomb is an 100% free and open source system for file encryption on GNU/Linux. It simply makes gpg dm-crypt and cryptsetup usable in a variety of situations.

Written in bash.

toplip - "the best place to hide something is right under your nose." toplip is our command line, very strong encryption and decryption utility with optional plausible deniability, image embedding, and multiple/variable passphrase complexity.

Feature Highlights

• Very strong encryption (XTS-AES256 based, possibly cascaded)
• Optional "plausible deniability"
• Optional image embedding/extraction (PNG/JPG)
• Optional multiple passphrase protection
• Simplified brute force recovery protection
• No identifiable output markers
• Open source/GPLv3
• Commercial support/training

There are numerous file encryption tools available on the market to protect your files. We have already reviewed some encryption tools such as Cryptomater, Cryptkeeper, CryptGo, Cryptr, Tomb, and GnuPG etc. Today, we will be discussing yet another file encryption and decryption command line utility named “Toplip”.

It is a free and open source encryption utility that uses a very strong encryption method called AES256, along with an XTS-AES design to safeguard your confidential data. Also, it uses Scrypt, a password-based key derivation function, to protect your passphrases against brute-force attacks.

Free client-side encryption for your cloud files.
Open source software: No backdoors, no registration.

Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized. Your data is your data alone and you deserve to choose where it is stored, if it is shared with some third party and how it's transmitted over the Internet.

Anyone who has gone through the trouble of setting up a secure website knows what a hassle getting and maintaining a certificate can be. Let’s Encrypt automates away the pain and lets site operators turn on and manage HTTPS with simple commands.

No validation emails, no complicated configuration editing, no expired certificates breaking your website. And of course, because Let’s Encrypt provides certificates for free, no need to arrange payment.

To provide an insight into the quality of software that is available, we will look at 34 outstanding open source backup tools that you can use on Linux servers or systems. There will be something of interest for anyone who attaches any importance to their hard work.

Encryptr is free and Open-Source password manager that is based on a very secure ‘Zero-Knowledge Crypton Framework‘. Zero-Knowledge system does not allow even a server to know what data is being sent and saved on the server by user. Encryptr saves all of your passwords, credit card data, PINs, or access codes, in the cloud with a simple and sleek user interface.

RetroShare is a Open Source cross-platform, Friend-2-Friend and secure decentralised communication platform.
It lets you to securely chat, share photos, videos, and more with family and friends, using OpenPGP to authenticate peers and OpenSSL to encrypt all communication.

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