SSHamble is a research tool for SSH implementations that includes:

• Interesting attacks against authentication
• Post-session authentication attacks
• Pre-authentication state transitions
• Authentication timing analysis
• Post-session enumeration

GNU's framework for secure p2p networking

Create a pdf with barcodes to backup text files on paper. Designed to backup ASCII-armored GnuPG and SSH key files and ciphertext.

KeePass is a free open source password manager. Passwords can be stored in an encrypted database, which can be unlocked with one master key.

Bitwarden is a free and open source password management solution for individuals, teams, and business organizations.

Easy and safe way for individuals, teams, and business organizations to store, share, and sync sensitive data.

A command line interface (interactive shell) to work with KeePass 1.x or 2.x database files.

gopass is a rewrite of the pass password manager in Go with the aim of making it cross-platform and adding additional features. The target audience are professional developers and sysadmins (and especially teams of those) who are well versed with a command line interface.

The team password manager.

I am not going to discuss why you need strong passwords. It is an open secret that strong passwords keep you relatively safer.

Generating strong passwords is something you can do on your own but putting all the combination of lower and upper cases, numbers, symbols can be a tiresome work.

But you need not worry. Linux has got you covered. We’ll see 5 best password generators for Linux that will ease the task for you.

Password management belongs to the command line, deep into the Unix heartland, the shell. Titan is written in C and is available under the MIT license.

Pure Bash script to manage secure archives; simple and clean; uses gnugpg for encryption/decryption, thus can leverage tools like GPG Agent.

Hard disk encryption tool; it stores all setup information in the partition header, enabling easy data transport or migration.

Encrypted filesystem in user-space based on FUSE; mounts an encrypted directory into a clear one.

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.

An Ash module that makes it easy to perform aes-256-cbc encryption for files and directories.

A tiny utility for chrooting into an installed Linux system.

Locally mount a remote file-system through SSH and access files and directory as they would be on the local machine.

"An open source tool that lets you securely and anonymously share a file of any size."

Password management should be simple and follow Unix philosophy. With pass, each password lives inside of a gpg encrypted file whose filename is the title of the website or resource that requires the password. These encrypted files may be organized into meaningful folder hierarchies, copied from computer to computer, and, in general, manipulated using standard command line file management utilities.

usbrip (inherited from "USB Ripper", not "USB R.I.P.") is an open source forensics tool with CLI interface that lets you keep track of USB device artifacts (i.e., USB event history) on Linux machines.

usbrip is a small piece of software written in pure Python 3 (using some external modules, see Dependencies/pip) which analyzes Linux log data (journalctl output or /var/log/syslog* and /var/log/messages* files, depending on the distro) for constructing USB event history tables. Such tables may contain the following columns: "Connected" (date & time), "Host", "VID" (vendor ID), "PID" (product ID), "Product", "Manufacturer", "Serial Number", "Port" and "Disconnected" (date & time).