PHP code example of sop / gcm

1. Go to this page and download the library: Download sop/gcm 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/ */

sop / gcm example snippets


[$ciphertext, $auth_tag] = AESGCM::encrypt(
    'Meet me at the pier at midnight.',
    'Additional info', 'some 128 bit key', 'random iv-string');
echo bin2hex($ciphertext) . "\n" . bin2hex($auth_tag);


$plaintext = AESGCM::decrypt($ciphertext, $auth_tag,
    'Additional info', 'some 128 bit key', 'random iv-string');
echo $plaintext;


$key = '012345678901234567890123'; // 192-bit encryption key
$iv = hex2bin('beadfacebadc0fee'); // random initialization vector
$gcm = new GCM(new AES192Cipher(), 13);
[$ciphertext, $auth_tag] = $gcm->encrypt('Secret message.', '', $key, $iv);
echo bin2hex($ciphertext) . "\n" . bin2hex($auth_tag);


$plaintext = $gcm->decrypt($ciphertext, $auth_tag, '', $key, $iv);
echo $plaintext;