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peripherad
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vendor
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mpdf
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mpdf
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src
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Pdf
/
Protection
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UniqidGenerator.php
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<?php namespace Mpdf\Pdf\Protection; class UniqidGenerator { public function __construct() { if (!function_exists('random_int') || !function_exists('random_bytes')) { throw new \Mpdf\MpdfException( 'Unable to set PDF file protection, CSPRNG Functions are not available. ' . 'Use paragonie/random_compat polyfill or upgrade to PHP 7.' ); } } /** * @return string */ public function generate() { $chars = 'ABCDEF1234567890'; $id = ''; for ($i = 0; $i < 32; $i++) { $id .= $chars[random_int(0, 15)]; } return md5($id); } }