pgen

Simple secure random password generator

It uses a cryptographically-secure RNG (CRNG) and tries its best to avoid leaving passwords in memory longer than needed.

Generated passwords are not human-readable.

Defaults

• Default alphabet consists of printable Latin1 characters except the special characters: only punctuation characters in the alphabet are the underscore and the minus
• Default RNG is ChaCha12

CLI

Provided CLI tool generates passwords that suit most password requirements and provide high security given reasonable length. The generator uses default alphabet and RNG.

pgen 32

will output something like

oYLlkEX7-PM8yVr2C8FejKnjnqNKmGzw

Library

The provided library allows to specify a different alphabet or a different generator.

If you generate passwords rarely and are ok with default RNG and alphabet you can do this:

pgen::generate(32);

If you need to generate many passwords repeatedly or if you want to use a different RNG or alphabet, use PassGen with PassGen::new, Passgen::wtih_rng or Passgen::with_alphabet. For example, to create a generator that can be used repeatedly to generate passwords containing only specified characters you can do this:

let p = PassGen::with_alphabet("abc")?;
p.generate(5); // cabac