diff --git a/system/helpers/security_helper.php b/system/helpers/security_helper.php
index 16dfb0d..2f3df78 100644
--- a/system/helpers/security_helper.php
+++ b/system/helpers/security_helper.php
@@ -25,8 +25,6 @@
  * @filesource
  */
 
-// ------------------------------------------------------------------------
-
 /**
  * CodeIgniter Security Helpers
  *
@@ -42,7 +40,6 @@
 /**
  * XSS Filtering
  *
- * @access	public
  * @param	string
  * @param	bool	whether or not the content is an image file
  * @return	string
@@ -61,7 +58,6 @@
 /**
  * Sanitize Filename
  *
- * @access	public
  * @param	string
  * @return	string
  */
@@ -79,7 +75,6 @@
 /**
  * Hash encode a string
  *
- * @access	public
  * @param	string
  * @return	string
  */
@@ -87,6 +82,11 @@
 {
 	function do_hash($str, $type = 'sha1')
 	{
+		if ( ! in_array($type, hash_algos()))
+		{
+			$type = 'md5';
+		}
+
 		return hash($type, $str);
 	}
 }
@@ -96,7 +96,6 @@
 /**
  * Strip Image Tags
  *
- * @access	public
  * @param	string
  * @return	string
  */
@@ -104,7 +103,7 @@
 {
 	function strip_image_tags($str)
 	{
-		return preg_replace(array("#<img\s+.*?src\s*=\s*[\"'](.+?)[\"'].*?\>#", "#<img\s+.*?src\s*=\s*(.+?).*?\>#"), "\\1", $str);
+		return preg_replace(array('#<img\s+.*?src\s*=\s*["\'](.+?)["\'].*?\>#', '#<img\s+.*?src\s*=\s*(.+?).*?\>#'), '\\1', $str);
 	}
 }
 
@@ -113,7 +112,6 @@
 /**
  * Convert PHP tags to entities
  *
- * @access	public
  * @param	string
  * @return	string
  */
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 1c709d4..5dcf54d 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -35,8 +35,6 @@
    -  Removed previously deprecated SHA1 Library.
    -  Removed previously deprecated use of ``$autoload['core']`` in application/config/autoload.php.
       Only entries in ``$autoload['libraries']`` are auto-loaded now.
-   -  Added support for HttpOnly cookies with new config option ``cookie_httponly`` (Off by default).
-      This affects session and CSRF cookies, as well as the behavior of set_cookie() in the Input library and cookie helper.
 
 -  Helpers
 
@@ -111,6 +109,7 @@
    -  $config['rewrite_short_tags'] now has no effect when using PHP 5.4 as *<?=* will always be available.
    -  Added method() to CI_Input to retrieve $_SERVER['REQUEST_METHOD'].
    -  Modified valid_ip() to use PHP's filter_var() in the :doc:`Input Library <libraries/input>`.
+   -  Added support for HTTP-Only cookies with new config option ``cookie_httponly`` (default FALSE).
 
 Bug fixes for 3.0
 ------------------