--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/pear/auth_sasl/Auth/SASL/Common.php	Thu Jan 04 15:50:29 2018 -0500
@@ -0,0 +1,105 @@
+<?php
+// +-----------------------------------------------------------------------+
+// | Copyright (c) 2002-2003 Richard Heyes                                 |
+// | All rights reserved.                                                  |
+// |                                                                       |
+// | Redistribution and use in source and binary forms, with or without    |
+// | modification, are permitted provided that the following conditions    |
+// | are met:                                                              |
+// |                                                                       |
+// | o Redistributions of source code must retain the above copyright      |
+// |   notice, this list of conditions and the following disclaimer.       |
+// | o Redistributions in binary form must reproduce the above copyright   |
+// |   notice, this list of conditions and the following disclaimer in the |
+// |   documentation and/or other materials provided with the distribution.|
+// | o The names of the authors may not be used to endorse or promote      |
+// |   products derived from this software without specific prior written  |
+// |   permission.                                                         |
+// |                                                                       |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS   |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT     |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
+// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT  |
+// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
+// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT      |
+// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
+// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
+// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT   |
+// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
+// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  |
+// |                                                                       |
+// +-----------------------------------------------------------------------+
+// | Author: Richard Heyes <richard@php.net>                               |
+// +-----------------------------------------------------------------------+
+//
+// $Id$
+
+/**
+* Common functionality to SASL mechanisms
+*
+* @author  Richard Heyes <richard@php.net>
+* @access  public
+* @version 1.0
+* @package Auth_SASL
+*/
+
+class Auth_SASL_Common
+{
+    /**
+    * Function which implements HMAC MD5 digest
+    *
+    * @param  string $key  The secret key
+    * @param  string $data The data to hash
+    * @param  bool $raw_output Whether the digest is returned in binary or hexadecimal format.
+    *
+    * @return string       The HMAC-MD5 digest
+    */
+    function _HMAC_MD5($key, $data, $raw_output = FALSE)
+    {
+        if (strlen($key) > 64) {
+            $key = pack('H32', md5($key));
+        }
+
+        if (strlen($key) < 64) {
+            $key = str_pad($key, 64, chr(0));
+        }
+
+        $k_ipad = substr($key, 0, 64) ^ str_repeat(chr(0x36), 64);
+        $k_opad = substr($key, 0, 64) ^ str_repeat(chr(0x5C), 64);
+
+        $inner  = pack('H32', md5($k_ipad . $data));
+        $digest = md5($k_opad . $inner, $raw_output);
+
+        return $digest;
+    }
+
+    /**
+    * Function which implements HMAC-SHA-1 digest
+    *
+    * @param  string $key  The secret key
+    * @param  string $data The data to hash
+    * @param  bool $raw_output Whether the digest is returned in binary or hexadecimal format.
+    * @return string       The HMAC-SHA-1 digest
+    * @author Jehan <jehan.marmottard@gmail.com>
+    * @access protected
+    */
+    protected function _HMAC_SHA1($key, $data, $raw_output = FALSE)
+    {
+        if (strlen($key) > 64) {
+            $key = sha1($key, TRUE);
+        }
+
+        if (strlen($key) < 64) {
+            $key = str_pad($key, 64, chr(0));
+        }
+
+        $k_ipad = substr($key, 0, 64) ^ str_repeat(chr(0x36), 64);
+        $k_opad = substr($key, 0, 64) ^ str_repeat(chr(0x5C), 64);
+
+        $inner  = pack('H40', sha1($k_ipad . $data));
+        $digest = sha1($k_opad . $inner, $raw_output);
+
+         return $digest;
+     }
+}
+?>