forked from deblan/gist
30 lines
765 B
PHP
30 lines
765 B
PHP
<?php
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namespace Gist\Service;
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use InvalidArgumentException;
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/**
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* Class SaltGenerator
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* @author Simon Vieille <simon@deblan.fr>
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*/
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class SaltGenerator
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{
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public function generate($length = 64)
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{
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if (!is_numeric($length)) {
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throw new InvalidArgumentException('Paramter length must be a valid integer.');
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}
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if (function_exists('openssl_random_pseudo_bytes')) {
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return substr(base64_encode(openssl_random_pseudo_bytes($length)), 0, $length);
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}
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if (function_exists('mcrypt_create_iv')) {
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return substr(base64_encode(mcrypt_create_iv($length, MCRYPT_DEV_URANDOM)), 0, $length);
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}
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throw new RuntimeException('You must enable openssl or mcrypt modules.');
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}
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}
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