Decrypt AES-128 encrypted video files from a m3u8 in PHP - Audio/video stream recording forums

Hello,

I wanted to present you a very unusual program, from which created I have a big problem.

This is my HLS playlist (.m3u8)

Code:

#EXT-X-KEY:METHOD=AES-128,URI="01.key",IV=0x00000000000000000000015FA0E49B00

#EXTINF:9.480,

01.ts

According to this information, I create variables in PHP

Code:

<?php

    

    $segment = file_get_contents("01.ts");

    $key_method = "AES-128-CBC"; // ??

    $key_value = file_get_contents("01.key");

    $key_iv = "0x00000000000000000000015FA0E49B00"; //  ?

And then I would like this file to decrypt, for example:

Code:

$decrypted = openssl_decrypt(

    $segment, 

    $key_method, 

    $key_value, 

    0, 

    $key_iv

    

);

And display:

Code:

header('Content-Type: application/octet-stream');

header('Content-Disposition: attachment; filename="01_decrypt.ts"');

echo $decrypted;

The result of my program is warning:

Quote:

openssl_decrypt(): IV passed is 34 bytes long which is longer than the 16 expected by selected cipher, truncating in ...

Download source files (.m3u8, .key and .ts):
http://www26.zippyshare.com/v/VyurKv7c/file.html

I ask you for help