README

This package provides a Laravel 5.1+ Facade for RandomLib by Paragon Initiative Enterprises, which in turn is a fork of RandomLib by ircmaxell. It lets you generate random numbers and strings, both for general usage and for usages in security contexts, such as tokens or strong cryptograhic keys.

Installation

The package can be installed via composer

$ composer require webcraft/laravel-random

[If you are using Laravel 5.5 with auto-discovery, you can skip this step] Then, add the service provider to your config/app.php file:

// config/app.php

'providers' => [
    ...
    Webcraft\Random\RandomServiceProvider::class,
    ...
];

[If you are using Laravel 5.5 with auto-discovery, you can skip this step] If you want to use the facade, add this:

// config/app.php

'aliases' => [
	  ...
        'Random' => Webcraft\Random\RandomFacade::class
    ...
]

This package comes with a config file, where you can define the generator strength. The default strength level is medium. If you want to specify a different strength level, copy the package config file to your local config folder with the publish command:

php artisan vendor:publish --provider="Webcraft\Random\RandomServiceProvider"

These are the 3 possible strength levels for your generator:

low

Low Strength should be used anywhere that random strings are needed in a non-cryptographical setting. They are not strong enough to be used as keys or salts. They are however useful for one-time use tokens.

medium (default)

Medium Strength should be used for most needs of a cryptographic nature. They are strong enough to be used as keys and salts. However, they do take some time and resources to generate, so they should not be over-used

high

High Strength keys should ONLY be used for generating extremely strong cryptographic keys. Generating them is very resource intensive and may take several minutes or more depending on the requested size.

There are currently no mixers shipped with this package that are capable of creating a high space generator. This will not work out of the box!

Usage

// Generate a random string that is 32 bytes in length.
$string = Random::generate(32);

// Generate a whole number between 5 and 15.
$int = Random::generateInt(5, 15);

// Generate a 32 character string that only contains the letters
// 'a', 'b', 'c', 'd', 'e', and 'f'.
$string = Random::generateString(32, 'abcdef');

Random::generate($size)

Generate a random byte string of the requested size.

Random::generateInt($min = 0, $max = PHP_INT_MAX)

Generate a random integer with the given range. If range ($max - $min) is zero, $max will be used.

Random::generateString($length, $characters = '')

Generate a random string of specified length.

This uses the supplied character list for generating the new result string. The list of characters should be specified as a string containing each allowed character.

If no character list is specified, the following list of characters is used:

0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ+/

Examples:

// Give the character list 'abcdef':
print Random::generateString(32, 'abcdef')."\n";

// One would expect to receive output that only contained those
// characters:
//
// adaeabecfbddcdaeedaedfbbcdccccfe
// adfbfdbfddadbfcbbefebcacbefafffa
// ceeadbcabecbccacdcaabbdccfadbafe
// abadcffabdcacdbcbafcaecabafcdbbf
// dbdbddacdeaceabfaefcbfafebcacdca

Changelog

Please see CHANGELOG for more information.

License

This library is licensed under the MIT license. Please see License file for more information.