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Editing File: /home/maglabs/it/lib/internal/Magento/Framework/Encryption/KeyValidator.php

<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
declare(strict_types=1);

namespace Magento\Framework\Encryption;

use Magento\Framework\Config\ConfigOptionsListConstants;

/**
 * Encryption Key Validator
 */
class KeyValidator
{
    /**
     * Validate encryption key
     *
     * Validate that encryption key is exactly 32 characters long and has
     * no trailing spaces, no invisible characters (tabs, new lines, etc.)
     *
     * @param string $value
     * @return bool
     */
    public function isValid($value) : bool
    {
        if (str_starts_with($value, ConfigOptionsListConstants::STORE_KEY_ENCODED_RANDOM_STRING_PREFIX)) {
            return (bool)$value
                && preg_match('/^[a-zA-Z0-9\/\r\n+]*={0,2}$/', $value);
        } else {
            return $value
                && strlen($value) === ConfigOptionsListConstants::STORE_KEY_RANDOM_STRING_SIZE
                && preg_match('/^\S+$/', $value);
        }
    }
}

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