New file |
0,0 → 1,74 |
<?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.php,v 1.6 2003/02/21 16:07:17 mj Exp $ |
|
/** |
* 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 $data The data to protect |
* @return string The HMAC MD5 digest |
*/ |
function _HMAC_MD5($key, $data) |
{ |
if (strlen($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); |
|
return $digest; |
} |
} |
?> |