init web ems all

phpMyAdmin/libraries/hash.lib.php

@@ -0,0 +1,28 @@
+<?php
+/* vim: set expandtab sw=4 ts=4 sts=4: */
+/**
+ * The hash extension polyfills.
+ *
+ * @package PhpMyAdmin
+ */
+
+if (! defined('PHPMYADMIN')) {
+    exit;
+}
+
+/* Compatibility with PHP < 5.6 */
+if (! function_exists('hash_equals')) {
+    /**
+     * Timing attack safe string comparison
+     *
+     * @param string $a first string
+     * @param string $b second string
+     *
+     * @return boolean whether they are equal
+     */
+    function hash_equals($a, $b) {
+        $ret = strlen($a) ^ strlen($b);
+        $ret |= array_sum(unpack("C*", $a ^ $b));
+        return ! $ret;
+    }
+}