HT_DASHBOARD/app/Logics/QRService/QRCryptoLogic.php

<?php

namespace App\Logics\QRService;

class QRCryptoLogic
{

    const CIPHER = "aes-256-ecb";
    const KEY = "axT59AhYNaxyK/X1fpQhEQ==";

    static public function encrypt(string $source)
    {
        $key = self::KEY;
        $binary = openssl_encrypt($source,  self::CIPHER, $key, OPENSSL_RAW_DATA);

        return base64_encode($binary);
    }

    static public function decrypt(string $source)
    {
        $key = self::KEY;
        $binary = base64_decode($source);
        return  openssl_decrypt($binary, self::CIPHER, $key, OPENSSL_RAW_DATA);
    }
}