Protecting A Key Manager Script With Root Permissions

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http://askubuntu.com – I'm remastering a browser/ubuntu based live distro. I'm now focusing on way to help users protect their online passwords. I'm using Firefox as the browser, but there are vulnerabilities with the Firefox's password manager. The main vulnerability is that once the master password is given, any service has uninhibited access to all the users encrypted passwords. There are a handful of other vulnerabilities (some not related to Firefox), but I'm taking things one at a time and trying to protect the users password from this specific situation. My solution has been difficult to implement because (HowTos)