Password Generator Library

Simple library for generating random passwords.

Requirements

PHP >= 7.1

We only support PHP 7.3+

Installation

Install Composer

curl -sS https://getcomposer.org/installer | php
mv composer.phar /usr/local/bin/composer

Now tell composer to download the library by running the command:

$ composer require hackzilla/password-generator

Composer will add the library to your composer.json file and install it into your project's vendor/hackzilla directory.

Simple Usage

use Hackzilla\PasswordGenerator\Generator\ComputerPasswordGenerator;

$generator = new ComputerPasswordGenerator();

$generator
  ->setOptionValue(ComputerPasswordGenerator::OPTION_UPPER_CASE, true)
  ->setOptionValue(ComputerPasswordGenerator::OPTION_LOWER_CASE, true)
  ->setOptionValue(ComputerPasswordGenerator::OPTION_NUMBERS, true)
  ->setOptionValue(ComputerPasswordGenerator::OPTION_SYMBOLS, false)
;

$password = $generator->generatePassword();

More Passwords Usage

If you want to generate 10 passwords that are 12 characters long.

use Hackzilla\PasswordGenerator\Generator\ComputerPasswordGenerator;

$generator = new ComputerPasswordGenerator();

$generator
  ->setUppercase()
  ->setLowercase()
  ->setNumbers()
  ->setSymbols(false)
  ->setLength(12);

$password = $generator->generatePasswords(10);

Hybrid Password Generator Usage

use Hackzilla\PasswordGenerator\Generator\HybridPasswordGenerator;

$generator = new HybridPasswordGenerator();

$generator
  ->setUppercase()
  ->setLowercase()
  ->setNumbers()
  ->setSymbols(false)
  ->setSegmentLength(3)
  ->setSegmentCount(4)
  ->setSegmentSeparator('-');

$password = $generator->generatePasswords(10);

If you can think of a better name for this password generator then let me know.

The segment separator will be remove from the possible characters.

Human Password Generator Usage

use Hackzilla\PasswordGenerator\Generator\HumanPasswordGenerator;

$generator = new HumanPasswordGenerator();

$generator
  ->setWordList('/usr/share/dict/words')
  ->setWordCount(3)
  ->setWordSeparator('-');

$password = $generator->generatePasswords(10);

Requirement Password Generator Usage

use Hackzilla\PasswordGenerator\Generator\RequirementPasswordGenerator;

$generator = new RequirementPasswordGenerator();

$generator
  ->setLength(16)
  ->setOptionValue(RequirementPasswordGenerator::OPTION_UPPER_CASE, true)
  ->setOptionValue(RequirementPasswordGenerator::OPTION_LOWER_CASE, true)
  ->setOptionValue(RequirementPasswordGenerator::OPTION_NUMBERS, true)
  ->setOptionValue(RequirementPasswordGenerator::OPTION_SYMBOLS, true)
  ->setMinimumCount(RequirementPasswordGenerator::OPTION_UPPER_CASE, 2)
  ->setMinimumCount(RequirementPasswordGenerator::OPTION_LOWER_CASE, 2)
  ->setMinimumCount(RequirementPasswordGenerator::OPTION_NUMBERS, 2)
  ->setMinimumCount(RequirementPasswordGenerator::OPTION_SYMBOLS, 2)
  ->setMaximumCount(RequirementPasswordGenerator::OPTION_UPPER_CASE, 8)
  ->setMaximumCount(RequirementPasswordGenerator::OPTION_LOWER_CASE, 8)
  ->setMaximumCount(RequirementPasswordGenerator::OPTION_NUMBERS, 8)
  ->setMaximumCount(RequirementPasswordGenerator::OPTION_SYMBOLS, 8)
;

$password = $generator->generatePassword();

A limit can be removed by passing null

$generator
  ->setMinimumCount(RequirementPasswordGenerator::OPTION_UPPER_CASE, null)
  ->setMaximumCount(RequirementPasswordGenerator::OPTION_UPPER_CASE, null)
;

When setting the minimum and maximum values, be careful of unachievable settings.

For example the following will end up in an infinite loop.

$generator
  ->setLength(4)
  ->setOptionValue(RequirementPasswordGenerator::OPTION_UPPER_CASE, true)
  ->setOptionValue(RequirementPasswordGenerator::OPTION_LOWER_CASE, false)
  ->setMinimumCount(RequirementPasswordGenerator::OPTION_UPPER_CASE, 5)
  ->setMaximumCount(RequirementPasswordGenerator::OPTION_LOWER_CASE, 1)
;

For the moment you can call $generator->validLimits() to test whether the counts will cause problems. If the method returns true, then you can proceed. If false, then generatePassword() will likely cause an infinite loop.

Example Implementations

Password Generator App [https://github.com/hackzilla/password-generator-app]
Password Generator Bundle [https://github.com/hackzilla/password-generator-bundle]

Random Note

Since version 1.5.0, the library depends on the presence of random_int which is found in PHP 7.0+

Contributions and Issues

See all contributors on GitHub.

Please report issues using GitHub's issue tracker: GitHub Repo

If you find this project useful, consider buying me a coffee.

License

This bundle is released under the MIT license. See the LICENSE file for details.

czachor/password-generator