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About this Add-on
- Password are not very strong
- We use them for multiple accounts
The best way to avoid these errors is to have a unique strong password for each account. gPass helps to reach this goal : you keep a subset of passwords (called masterkey) and for each login/password tuple you chose, gPass returns the real password by querying a password server.
To have a high level of security, all information is stored encrypted (server side). Nothing is stored on client. The decryption is done on the fly when it's needed and only with user input. So, a hacker can get your password database, it will not be able to see any information (except if it brute force your masterkey) ! So it's important to choose ONE strong masterkey !
This addon is like last pass one, but I wanted it to be open source and self hostable (be careful on server down !). Moreover, with gPass, you can have multiple master key !
The first thing to do is to populate your database (from your/a password server) with login/password/master key values. If you want to make strong password, there is a password generator. After that, configure your addon in "tools -> addons -> gPass -> preferences" to point to your password server (+ username). Be careful, login and password are case sensitive.
When you're in a login form and you want to use gPass, type your login and fill "@@masterkey" in password field. Then submit and password will automatically be replaced by the one in the database (after addon decrypt it).
Version 0.5 : You can also type "@_masterkey" to only replace your password without submitting and manually submit. This allows to support more websites.
To host a password server, you need a webserver. Just copy server files in a directory read/write for web server user (www-data). A sample apache2 configuration file is available in resources. For enhanced security, it's better to put the password server under https and add authentication to admin panel. Server side is written in PHP (with SQLite3 for database component).
Configuration parameters are in conf.php
A demonstration server is available here. It's the default server of XPI package (user demo).
Warning The master key derivation is partially based on account URL. So it's linked to your server information. Currently there is no simple way to export/import a full gPass database.
Server source code must be downloaded here
Just install xpi package and configure your username.
All the code is licensed under GPL v3. Source code is available here.