Bramanto

<?php

ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

/*
|--------------------------------------------------------------------------
| FUNCTION BUKA FILE EXT *.ini
|--------------------------------------------------------------------------
*/
function read_file_ini($path)
{
    $file = @parse_ini_file($path);

    if(!$file){
        return 'File Not Found';
        exit();
    }

    return $file;
}

/*
|--------------------------------------------------------------------------
| ENCRYPT SET KE COOKIE
|--------------------------------------------------------------------------
*/
function set_to_cookie($name, $cookie_data, $e_key, $a_key)
{
    $iv         = mcrypt_create_iv(16, MCRYPT_DEV_URANDOM);
    $ciphertext = mcrypt_encrypt(
                    MCRYPT_RIJNDAEL_128,
                    $e_key,
                    json_encode($cookie_data),
                    MCRYPT_MODE_ECB,
                    $iv
                );

    $hmac = hash_hmac('sha256', $iv.$ciphertext, $a_key, true);

    return setcookie(
        $name,
        base64_encode(
            $hmac.$iv.$ciphertext
        )
    );
}

/*
|--------------------------------------------------------------------------
| DECRYPT DARI COOKIE
|--------------------------------------------------------------------------
*/
function get_from_cookie($name, $e_key, $a_key)
{
    if (!isset($_COOKIE[$name]))
    {
        return null;
    }

    $decoded    = base64_decode($_COOKIE[$name]);
    $hmac       = mb_substr($decoded, 0, 32, '8bit');
    $iv         = mb_substr($decoded, 32, 16, '8bit');
    $ciphertext = mb_substr($decoded, 48, null, '8bit');

    $calculated = hash_hmac('sha256', $iv.$ciphertext, $a_key, true);

    if (hash_equals($hmac, $calculated)) {
        return $decrypted = rtrim(
                mcrypt_decrypt(
                    MCRYPT_RIJNDAEL_128,
                    $e_key,
                    $ciphertext,
                    MCRYPT_MODE_ECB,
                    $iv
                ),
                "\0"
            );

    }
}

/*
|--------------------------------------------------------------------------
| CARA PAKAI
|--------------------------------------------------------------------------
*/

// INISIALISASI KEY
$sample_key = 'bramantootnamarb';

// BACA FILENYA
$data_bram = read_file_ini('php.ini');

// ENCRYPT LALU SET KE COOKIE DENGAN NAMA BPKP
set_to_cookie('BPKP', $data_bram, $sample_key, $sample_key);

// DECRYPT, MISALNYA DENGAN OUTPUT JSON
$decrypt = get_from_cookie('BPKP', $sample_key, $sample_key);

header('Content-Type: application/json');
print_r($decrypt);

// Source: https://bramanto.web.id/bpkp/bramanto.php