Free shadow password software for linux

If you arent concerned about someone looking over your shoulder and stealing your passwords, why hassle with those obfuscated password fields, where you never know whether you typed your 30 character code correctly or not...

Unhide Passwords shows the contents of password fields in cleartext (instead of the asterisks), to make that process a bit easier.

Shadow password file utilities package includes the programs necessary to convert traditional V7 UNIX password files to the SVR4 shadow password format, and additional tools to maintain password and group files (that work with both shadow and non-shadow passwords).
Enhancements:
- A problem where su set the enviroment too early when using PAM was fixed.
- A UID/GID overflow in groupadd, groupmod, useradd, and anusermod was fixed along with overflows in inactive, mindays, warndays, and maxdays in passwd, useradd, and usermod. groupmems was rewritten to use PAM and getopt_long().
- usermod was reverted back to previous -a option semantics.
- chsh and groupmod were rewritten to use getopt_long().
- Translations and man pages were updated.

Starfish Password Manager project consists of a password manager.
Starfish is a simple password manager. It stores all of its data in XML, and uses strong encryption (MD5 with DES).
Main features:
- 100% Java©
- Easy to use GUI
- Strong encryption
- Sortable columns, password hiding/unhiding
- Easy copy to clipboard
- All data stored in XML

Universal Password Manager is a cross platform password manager. Over the years Ive used a number of different password managers but I never quite found one that gave me everything I needed. At work I use MS Windows but at home I use a Mac.
What I wanted was a password manager that would run on both platforms and share the same password database. Version 1.0 of UPM satisfies the first of these requirements. Im hoping that another release soon after will fulfil the second.
Main features:
- Small, fast and lean
- Written in Java and utilizing Swing for the GUI
- Windows and Mac OS X native feeling versions available
- Fast Account searching
- Streamlined for those who are more comfortable using the keyboard only
- Uses DES with 56 bit keys to encrypt the database

Ruby/Password is a suite of password handling methods for Ruby.
It supports the manual entry of passwords from the keyboard in both buffered and unbuffered modes, random password generation, password strength checking, phonemic password generation (for easy memorisation by human-beings) and the encryption of passwords.
CrackLib makes literally hundreds of tests to determine whether youve chosen a bad password.
- It tries to generate words from your username and GECOS entry and tries to match them against the password youve chosen.
- It checks for simplistic patterns.
- It then tries to reverse-engineer your password into a dictionary word, and searches for it in your dictionary.
- after all that, its PROBABLY a safe(-ish) password. 8-)
The target audience for this library is system administrators who need to write Ruby programs that prompt for, generate, verify and encrypt passwords.

Magic Password Generator is an extension which magically makes custom passwords for each website.

Right click the toolbar, and click customize, to get the button to activate the extension!

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!