OXIESEC PANEL

Name	Size	Modified	Perms
📁 ..	-	05/19/2025 10:07:19 AM	rwxr-xr-x
📄 AbstractCryptoClient.php	4.11 KB	05/19/2025 10:07:18 AM	rw-r--r--
📄 AbstractCryptoClientV2.php	4 KB	05/19/2025 10:07:18 AM	rw-r--r--
📄 AesDecryptingStream.php	3.65 KB	05/19/2025 10:07:18 AM	rw-r--r--
📄 AesEncryptingStream.php	3.83 KB	05/19/2025 10:07:18 AM	rw-r--r--
📄 AesGcmDecryptingStream.php	2.81 KB	05/19/2025 10:07:18 AM	rw-r--r--
📄 AesGcmEncryptingStream.php	3.02 KB	05/19/2025 10:07:18 AM	rw-r--r--
📄 AesStreamInterface.php	686 bytes	05/19/2025 10:07:18 AM	rw-r--r--
📄 AesStreamInterfaceV2.php	759 bytes	05/19/2025 10:07:18 AM	rw-r--r--
📁 Cipher	-	05/19/2025 10:07:18 AM	rwxr-xr-x
📄 DecryptionTrait.php	6.13 KB	05/19/2025 10:07:18 AM	rw-r--r--
📄 DecryptionTraitV2.php	9.28 KB	05/19/2025 10:07:18 AM	rw-r--r--
📄 EncryptionTrait.php	7.1 KB	05/19/2025 10:07:18 AM	rw-r--r--
📄 EncryptionTraitV2.php	7.29 KB	05/19/2025 10:07:18 AM	rw-r--r--
📄 KmsMaterialsProvider.php	4.01 KB	05/19/2025 10:07:18 AM	rw-r--r--
📄 KmsMaterialsProviderV2.php	3.53 KB	05/19/2025 10:07:18 AM	rw-r--r--
📄 MaterialsProvider.php	3.33 KB	05/19/2025 10:07:18 AM	rw-r--r--
📄 MaterialsProviderInterface.php	1.87 KB	05/19/2025 10:07:18 AM	rw-r--r--
📄 MaterialsProviderInterfaceV2.php	1.72 KB	05/19/2025 10:07:18 AM	rw-r--r--
📄 MaterialsProviderV2.php	2.07 KB	05/19/2025 10:07:18 AM	rw-r--r--
📄 MetadataEnvelope.php	1.7 KB	05/19/2025 10:07:18 AM	rw-r--r--
📄 MetadataStrategyInterface.php	1 KB	05/19/2025 10:07:18 AM	rw-r--r--
📁 Polyfill	-	05/19/2025 10:07:18 AM	rwxr-xr-x

Editing: AesGcmDecryptingStream.php

<?php
namespace Aws\Crypto;

use Aws\Exception\CryptoException;
use GuzzleHttp\Psr7;
use GuzzleHttp\Psr7\StreamDecoratorTrait;
use Psr\Http\Message\StreamInterface;
use Aws\Crypto\Polyfill\AesGcm;
use Aws\Crypto\Polyfill\Key;

/**
 * @internal Represents a stream of data to be gcm decrypted.
 */
class AesGcmDecryptingStream implements AesStreamInterface
{
    use StreamDecoratorTrait;

private $aad;

private $initializationVector;

private $key;

private $keySize;

private $cipherText;

private $tag;

private $tagLength;

/**
     * @var StreamInterface
     */
    private $stream;

/**
     * @param StreamInterface $cipherText
     * @param string $key
     * @param string $initializationVector
     * @param string $tag
     * @param string $aad
     * @param int $tagLength
     * @param int $keySize
     */
    public function __construct(
        StreamInterface $cipherText,
        $key,
        $initializationVector,
        $tag,
        $aad = '',
        $tagLength = 128,
        $keySize = 256
    ) {
        $this->cipherText = $cipherText;
        $this->key = $key;
        $this->initializationVector = $initializationVector;
        $this->tag = $tag;
        $this->aad = $aad;
        $this->tagLength = $tagLength;
        $this->keySize = $keySize;
        // unsetting the property forces the first access to go through
        // __get().
        unset($this->stream);
    }

public function getOpenSslName()
    {
        return "aes-{$this->keySize}-gcm";
    }

public function getAesName()
    {
        return 'AES/GCM/NoPadding';
    }

public function getCurrentIv()
    {
        return $this->initializationVector;
    }

public function createStream()
    {
        if (version_compare(PHP_VERSION, '7.1', '<')) {
            return Psr7\Utils::streamFor(AesGcm::decrypt(
                (string) $this->cipherText,
                $this->initializationVector,
                new Key($this->key),
                $this->aad,
                $this->tag,
                $this->keySize
            ));
        } else {
            $result = \openssl_decrypt(
                (string)$this->cipherText,
                $this->getOpenSslName(),
                $this->key,
                OPENSSL_RAW_DATA,
                $this->initializationVector,
                $this->tag,
                $this->aad
            );
            if ($result === false) {
                throw new CryptoException('The requested object could not be'
                    . ' decrypted due to an invalid authentication tag.');
            }
            return Psr7\Utils::streamFor($result);
        }
    }

public function isWritable(): bool
    {
        return false;
    }
}