PHP code example of vamischenko / decorators

1. Go to this page and download the library: Download vamischenko/decorators library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

vamischenko / decorators example snippets


use GuzzleHttp\Psr7\Utils;
use Vamischenko\Decorators\KeyExpander;
use Vamischenko\Decorators\MediaKey;
use Vamischenko\Decorators\MediaType;
use Vamischenko\Decorators\Sidecar\SidecarContext;
use Vamischenko\Decorators\Stream\EncryptingStream;

$mediaKey = MediaKey::generate(); // or MediaKey::fromBinary($existingKey)
$expanded = (new KeyExpander())->expand($mediaKey, MediaType::IMAGE);

$source  = Utils::streamFor(fopen('photo.jpg', 'rb'));
$sidecar = new SidecarContext($expanded->macKey); // optional, for VIDEO/AUDIO
$stream  = new EncryptingStream($source, $expanded, $sidecar);

// Read the encrypted stream — data is processed incrementally, not buffered
file_put_contents('photo.jpg.enc', (string) $stream);

// For streamable media, retrieve the sidecar after reading the full stream
$sidecarBytes = $sidecar->getSidecar();


use GuzzleHttp\Psr7\Utils;
use Vamischenko\Decorators\KeyExpander;
use Vamischenko\Decorators\MediaKey;
use Vamischenko\Decorators\MediaType;
use Vamischenko\Decorators\Stream\DecryptingStream;

$mediaKey = MediaKey::fromBinary($keyBytes);
$expanded = (new KeyExpander())->expand($mediaKey, MediaType::IMAGE);

$source = Utils::streamFor(fopen('photo.jpg.enc', 'rb'));
$stream = new DecryptingStream($source, $expanded);

// MAC is verified before any bytes are returned
$plaintext = (string) $stream;