added files

application/helpers/phpass.php

@@ -0,0 +1,254 @@
+<?php (defined('BASEPATH')) OR exit('No direct script access allowed');
+
+#
+
+# Portable PHP password hashing framework.
+
+#
+
+# Version 0.3 / genuine.
+
+#
+
+# Written by Solar Designer <solar at openwall.com> in 2004-2006 and placed in
+
+# the public domain.  Revised in subsequent years, still public domain.
+
+#
+
+# There's absolutely no warranty.
+
+#
+
+# The homepage URL for this framework is:
+
+#
+
+#   http://www.openwall.com/phpass/
+
+#
+
+# Please be sure to update the Version line if you edit this file in any way.
+
+# It is suggested that you leave the main version number intact, but indicate
+
+# your project name (after the slash) and add your own revision information.
+
+#
+
+# Please do not change the "private" password hashing method implemented in
+
+# here, thereby making your hashes incompatible.  However, if you must, please
+
+# change the hash type identifier (the "$P$") to something different.
+
+#
+
+# Obviously, since this code is in the public domain, the above are not
+
+# requirements (there can be none), but merely suggestions.
+
+#
+
+class PasswordHash {
+
+    var $itoa64;
+
+    var $iteration_count_log2;
+
+    var $portable_hashes;
+
+    var $random_state;
+
+
+
+    function PasswordHash($iteration_count_log2, $portable_hashes)
+
+    {
+
+        $this->itoa64 = './0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
+
+
+
+        if ($iteration_count_log2 < 4 || $iteration_count_log2 > 31)
+
+            $iteration_count_log2 = 8;
+
+        $this->iteration_count_log2 = $iteration_count_log2;
+
+
+
+        $this->portable_hashes = $portable_hashes;
+
+
+
+        $this->random_state = microtime();
+
+        if (function_exists('getmypid'))
+
+            $this->random_state .= getmypid();
+
+    }
+
+
+
+    function get_random_bytes($count)
+
+    {
+
+        $output = '';
+
+        if (is_readable('/dev/urandom') &&
+
+            ($fh = @fopen('/dev/urandom', 'rb'))) {
+
+            $output = fread($fh, $count);
+
+            fclose($fh);
+
+        }
+
+
+
+        if (strlen($output) < $count) {
+
+            $output = '';
+
+            for ($i = 0; $i < $count; $i += 16) {
+
+                $this->random_state =
+
+                    md5(microtime() . $this->random_state);
+
+                $output .=
+
+                    pack('H*', md5($this->random_state));
+
+            }
+
+            $output = substr($output, 0, $count);
+
+        }
+
+
+
+        return $output;
+
+    }
+
+
+
+    function encode64($input, $count)
+
+    {
+
+        $output = '';
+
+        $i = 0;
+
+        do {
+
+            $value = ord($input[$i++]);
+
+            $output .= $this->itoa64[$value & 0x3f];
+
+            if ($i < $count)
+
+                $value |= ord($input[$i]) << 8;
+
+            $output .= $this->itoa64[($value >> 6) & 0x3f];
+
+            if ($i++ >= $count)
+
+                break;
+
+            if ($i < $count)
+
+                $value |= ord($input[$i]) << 16;
+
+            $output .= $this->itoa64[($value >> 12) & 0x3f];
+
+            if ($i++ >= $count)
+
+                break;
+
+            $output .= $this->itoa64[($value >> 18) & 0x3f];
+
+        } while ($i < $count);
+
+
+
+        return $output;
+
+    }
+
+
+
+    function gensalt_private($input)
+
+    {
+
+        $output = '$P$';
+
+        $output .= $this->itoa64[min($this->iteration_count_log2 +
+
+            ((PHP_VERSION >= '5') ? 5 : 3), 30)];
+
+        $output .= $this->encode64($input, 6);
+
+
+
+        return $output;
+
+    }
+
+
+
+    function crypt_private($password, $setting)
+
+    {
+
+        $output = '*0';
+
+        if (substr($setting, 0, 2) == $output)
+
+            $output = '*1';
+
+
+
+        $id = substr($setting, 0, 3);
+
+        # We use "$P$", phpBB3 uses "$H$" for the same thing
+
+        if ($id != '$P$' && $id != '$H$')
+
+            return $output;
+
+
+
+        $count_log2 = strpos($this->itoa64, $setting[3]);
+
+        if ($count_log2 < 7 || $count_log2 > 30)
+
+            return $output;
+
+
+
+        $count = 1 << $count_log2;
+
+
+
+        $salt = substr($setting, 4, 8);
+
+        if (strlen($salt) != 8)
+
+            return $output;
+
+
+
+        # We're kind of forced to use MD5 here since it's the only
+
+        # cryptographic primitive available in all versions of PHP
+
+        # currently in use.  To implement our own low-level crypto
+