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<title>[11921] trunk/wp-includes/compat.php:
Correct key padding and add support for raw_output in hash_hmac.</title>
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<div id="msg">
<dl>
<dt>Revision</dt> <dd><a href="http://trac.wordpress.org/changeset/11921">11921</a></dd>
<dt>Author</dt> <dd>westi</dd>
<dt>Date</dt> <dd>2009-09-12 22:03:14 +0000 (Sat, 12 Sep 2009)</dd>
</dl>
<h3>Log Message</h3>
<pre>Correct key padding and add support for raw_output in hash_hmac. Fixes <a href="http://trac.wordpress.org/ticket/10284">#10284</a> props mdawaffe.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkwpincludescompatphp">trunk/wp-includes/compat.php</a></li>
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<h3>Diff</h3>
<a id="trunkwpincludescompatphp"></a>
<div class="modfile"><h4>Modified: trunk/wp-includes/compat.php (11920 => 11921)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-includes/compat.php 2009-09-12 08:26:44 UTC (rev 11920)
+++ trunk/wp-includes/compat.php 2009-09-12 22:03:14 UTC (rev 11921)
</span><span class="lines">@@ -72,13 +72,17 @@
</span><span class="cx">
</span><span class="cx"> if (strlen($key) > 64)
</span><span class="cx"> $key = pack($pack, $algo($key));
</span><del>- else if (strlen($key) < 64)
- $key = str_pad($key, 64, chr(0));
</del><span class="cx">
</span><ins>+ $key = str_pad($key, 64, chr(0));
+
</ins><span class="cx"> $ipad = (substr($key, 0, 64) ^ str_repeat(chr(0x36), 64));
</span><span class="cx"> $opad = (substr($key, 0, 64) ^ str_repeat(chr(0x5C), 64));
</span><span class="cx">
</span><del>- return $algo($opad . pack($pack, $algo($ipad . $data)));
</del><ins>+ $hmac = $algo($opad . pack($pack, $algo($ipad . $data)));
+
+ if ( $raw_output )
+ return pack( $pack, $hmac );
+ return $hmac;
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> if ( !function_exists('mb_substr') ):
</span></span></pre>
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