Password manager

This is a deterministic, non-reversible password generator tool.

What is the problem it solves?

• Nowadays we need to supply a huge number of website passwords
• People tend to reuse the same (good or bad) ones for multiple sites
• But some (lazy or fraudulent) websites keep our passwords in plain text so if someone gets it, they might have the password for our other accounts

This password generator tool generates arbitrary-length passwords from the username, the sitename and a secret PIN. As the PIN is nowhere stored just used in the algorithm, it cannot be stolen (only forgotten, be careful, there is no "PIN reset" option here).

Requirements

• The tool can be run on a Linux server having the following
  • PHP (>=7.0)
  • Julia (>=1.0) with package Random

Usage

• Type to the form on index.html your input and press the Generate password button. PIN and Password length must be integers, or the generator will quietly fail.
• The generated password is deterministic so for the same input, you will get the same password
• The tool uses the confusion and diffusion principle, so a slight change of the input will result in a fundamental change of the output

Important things when using the tool

• If running on a remote server, always use https, otherwise your password can be intercepted
• It's preferable to change some of the number constants in backend/passwd.jl, so your algorithm is unique
  • Also, make backend folder unreadable by the webserver, so others can't see it