public static function verifyHashedData($str)
{
try {
// Explode the String into variables
@(list($signature, $payload) = @explode('-', $str, 2));
// Validate the given signature against the one we create using the payload
if ($signature && $payload && $signature === hash_hmac(self::$algorithm, self::base64UrlDecode($payload), self::$secret)) {
// Store the data
self::$data = json_decode(self::base64UrlDecode($payload), TRUE);
// Data untaltered
return TRUE;
}
// Data altered
return FALSE;
} catch (Exception $e) {
// Unknown error occured
return FALSE;
}
}
<?php
// Require class file
require_once 'libs/SecureHash.class.php';
// Get the instance
$SecureHash = SecureHash::getInstance();
// Set the shared secret, algorithm and delimiter
$SecureHash::setSharedSecret('328beab968f0faaec4c6bbd912aba013c929fd01');
$SecureHash::setAlgorithm('sha1');
$SecureHash::setDelimiter('-');
// Hashe the data and return as string
$str = $SecureHash::generateHashedData(array('Hello' => 'World'));
// Debug output
var_dump($str);
// Just verify, don't return the parsed data
var_dump($SecureHash::verifyHashedData($str));
// Like verifyHashedData() but returns the parsed data
var_dump($SecureHash::parseHashedData($str));
