Free password creator software for linux

Password List Generator is a good tool to create passwords list with makepasswd and save to file.

Gnome Password Generator is a GUI based secure password generator. The project allows the user to generate a specified number of random passwords of a specified length. The program requires Python version 2.4 or greater, PyGTK version 2.4 or greater, and Gnome-Python for Gnome 2.

Password Hasher enables a good security practice.
What good security practice demands:
- Strong passwords that are hard to guess.
- Different passwords at each site.
- Periodically changing existing passwords.
Why you probably arent practicing good security:
- Strong passwords are difficult to remember.
- Juggling a multitude of passwords is a pain.
- Updating passwords compounds the memorization problem.
Main features:
- Automatically generates strong passwords.
- One master key produces different passwords at many sites.
- Quickly upgrade passwords by "bumping" the site tag.
- Upgrade a master key without updating all sites at once.
- Supports different length passwords.
- Supports special requirements, such as digits and punctuation.
- Supports restricting a hash word to not use special characters. (New!)
- Saves all data to the browsers secure password database.
- Generates a portable HTML page with your site tags and option settings that allows you to generate your hash words in any browser on any machine without the extension installed. (New!)
- Can add marker buttons to unmask passwords on any web site. (New!)
- Extremely simple to use!

Password Cracking Library allows you to write own password cracking software.
Main features:
- powerful dictionary attack with word modifiers
- brute force (with or without known chars) attack
- misspelled password recovery, and more
Enhancements:
- Any (european) language and encoding support
- User-defined charsets
- New modifiers, including user-defined conversion tables
- Timing and benchmarking functions
- Any password length