PHP code example of leigh / poly1305

1. Go to this page and download the library: Download leigh/poly1305 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/ */

leigh / poly1305 example snippets


$mac = Poly1305\authenticate($key, $message);


$valid = Poly1305\verify($mac, $key, $message);


$auth = new Poly1305\Authenticator;

// Context preserves state between updates
$ctx = $auth->init($key);

while($messageChunk = getChunk()) {
    $auth->update($ctx, $messageChunk);
}

$mac = $poly1305->finish($ctx);


$r = '0123456789012345'; // "static" portion of Poly1305 key
$k = '0123456789012345'; // AES key
$n = '0123456789012345'; // Nonce


$aes = new Poly1305\AES();
$key = $r . $aes->kn($k, $n);
$mac = Poly1305\auth($key, $message);


$aes = new Poly1305\AES();
$aes->k($k);

$key = $r . $aes->n($n);
$mac = Poly1305\auth($key, $message);

// change nonce

$key = $r . $aes->n($n);
$mac = Poly1305\auth($key, $message);