0byt3m1n1-V2

Path: /home/dev2.destoffenstraat.com/vendor-1/laminas/laminas-crypt/src/Symmetric/Padding/ [ Home ]
File: Pkcs7.php
<?php

/**
 * @see       https://github.com/laminas/laminas-crypt for the canonical source repository
 * @copyright https://github.com/laminas/laminas-crypt/blob/master/COPYRIGHT.md
 * @license   https://github.com/laminas/laminas-crypt/blob/master/LICENSE.md New BSD License
 */

namespace Laminas\Crypt\Symmetric\Padding;

/**
 * PKCS#7 padding
 */
class Pkcs7 implements PaddingInterface
{
    /**
     * Pad the string to the specified size
     *
     * @param string $string    The string to pad
     * @param int    $blockSize The size to pad to
     *
     * @return string The padded string
     */
    public function pad($string, $blockSize = 32)
    {
        $pad = $blockSize - (strlen($string) % $blockSize);
        return $string . str_repeat(chr($pad), $pad);
    }

    /**
     * Strip the padding from the supplied string
     *
     * @param string $string The string to trim
     *
     * @return string The unpadded string
     */
    public function strip($string)
    {
        $end  = substr($string, -1);
        $last = ord($end);
        $len  = strlen($string) - $last;
        if (substr($string, $len) == str_repeat($end, $last)) {
            return substr($string, 0, $len);
        }
        return false;
    }
}