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+