Password management tools
This meta article is dedicated to secure password generation, auditing of generated passwords for security, and management of existing passwords.
Available software
Password generators
Apg
Apg's default settings do not enforce usage of uppercase letters, numbers or symbols. Use to following command to generate an extremely secure password:
user $apg -M CNS -m 165makepasswd
app-admin/makepasswd is a random password generator.
pwgen
app-admin/pwgen is a password generator.
ranpwd
app-admin/ranpwd generates random passwords using the in-kernel cryptographically secure random number generator.
Password managers
Generated passwords are extremely random and difficult to remember, therefore a password manager should be employed.
fpm2
x11-misc/fpm2 is a GTK password manager utility with password generator.
gorilla
app-crypt/gorilla is a Password Safe clone for Linux. It stores passwords in secure way with GUI interface.
KeePass
app-admin/keepass is a light-weight password management system. KeePass depends on Mono.
KeePassXC
app-admin/keepassxc is a fork of KeePassX that aims to incorporate stalled pull requests, features, and bug fixes that have never made it into the main KeePassX repository.
kpcli
app-admin/kpcli is a minimal command line interface to KeePass database files, that also supports Password Safe v3 databases.
pass
app-admin/pass stores, retrieves, generates, and synchronizes passwords securely using app-crypt/gnupg, app-admin/pwgen, and dev-vcs/git.
The password store (or pass) is a simple shell script, which provides commands for conveniently storing passwords in separated PGP encrypted files, temporally copying a password to clipboard, and tracking changes using git. It realizes password management in respect to the Unix philosophy.
There's also a GUI client, a Firefox plugin, and an iOS interface.
For further details visit the project's homepage.
pwman3
app-admin/pwman3 is a command-line password manager written in python3 with multiple database backends.
pwsafe
app-misc/pwsafe is a command-line password manager compatible with Password Safe.
Revelation
x11-misc/revelation is a password management system for GNOME. It is also suitable for non GNOME users.
tkpasman
app-misc/tkpasman is a useful and reliable personal password manager written in Tcl/Tk.