--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/InfoCard/Xml/EncryptedKey.php	Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,174 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_InfoCard
+ * @subpackage Zend_InfoCard_Xml
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: EncryptedKey.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+/**
+ * Zend_InfoCard_Xml_Element
+ */
+require_once 'Zend/InfoCard/Xml/Element.php';
+
+/**
+ * Zend_InfoCard_Xml_EncryptedKey
+ */
+require_once 'Zend/InfoCard/Xml/EncryptedKey.php';
+
+/**
+ * Zend_InfoCard_Xml_KeyInfo_Interface
+ */
+require_once 'Zend/InfoCard/Xml/KeyInfo/Interface.php';
+
+/**
+ * An object representing an Xml EncryptedKEy block
+ *
+ * @category   Zend
+ * @package    Zend_InfoCard
+ * @subpackage Zend_InfoCard_Xml
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_InfoCard_Xml_EncryptedKey
+    extends Zend_InfoCard_Xml_Element
+    implements Zend_InfoCard_Xml_KeyInfo_Interface
+{
+    /**
+     * Return an instance of the object based on input XML Data
+     *
+     * @throws Zend_InfoCard_Xml_Exception
+     * @param string $xmlData The EncryptedKey XML Block
+     * @return Zend_InfoCard_Xml_EncryptedKey
+     */
+    static public function getInstance($xmlData)
+    {
+        if($xmlData instanceof Zend_InfoCard_Xml_Element) {
+            $strXmlData = $xmlData->asXML();
+        } else if (is_string($xmlData)) {
+            $strXmlData = $xmlData;
+        } else {
+            throw new Zend_InfoCard_Xml_Exception("Invalid Data provided to create instance");
+        }
+
+        $sxe = simplexml_load_string($strXmlData);
+
+        if($sxe->getName() != "EncryptedKey") {
+            throw new Zend_InfoCard_Xml_Exception("Invalid XML Block provided for EncryptedKey");
+        }
+
+        return simplexml_load_string($strXmlData, "Zend_InfoCard_Xml_EncryptedKey");
+    }
+
+    /**
+     * Returns the Encyption Method Algorithm URI of the block
+     *
+     * @throws Zend_InfoCard_Xml_Exception
+     * @return string the Encryption method algorithm URI
+     */
+    public function getEncryptionMethod()
+    {
+
+        $this->registerXPathNamespace('e', 'http://www.w3.org/2001/04/xmlenc#');
+        list($encryption_method) = $this->xpath("//e:EncryptionMethod");
+
+        if(!($encryption_method instanceof Zend_InfoCard_Xml_Element)) {
+            throw new Zend_InfoCard_Xml_Exception("Unable to find the e:EncryptionMethod KeyInfo encryption block");
+        }
+
+        $dom = self::convertToDOM($encryption_method);
+
+        if(!$dom->hasAttribute('Algorithm')) {
+            throw new Zend_InfoCard_Xml_Exception("Unable to determine the encryption algorithm in the Symmetric enc:EncryptionMethod XML block");
+        }
+
+        return $dom->getAttribute('Algorithm');
+
+    }
+
+    /**
+     * Returns the Digest Method Algorithm URI used
+     *
+     * @throws Zend_InfoCard_Xml_Exception
+     * @return string the Digest Method Algorithm URI
+     */
+    public function getDigestMethod()
+    {
+        $this->registerXPathNamespace('e', 'http://www.w3.org/2001/04/xmlenc#');
+        list($encryption_method) = $this->xpath("//e:EncryptionMethod");
+
+        if(!($encryption_method instanceof Zend_InfoCard_Xml_Element)) {
+            throw new Zend_InfoCard_Xml_Exception("Unable to find the e:EncryptionMethod KeyInfo encryption block");
+        }
+
+        if(!($encryption_method->DigestMethod instanceof Zend_InfoCard_Xml_Element)) {
+            throw new Zend_InfoCard_Xml_Exception("Unable to find the DigestMethod block");
+        }
+
+        $dom = self::convertToDOM($encryption_method->DigestMethod);
+
+        if(!$dom->hasAttribute('Algorithm')) {
+            throw new Zend_InfoCard_Xml_Exception("Unable to determine the digest algorithm for the symmetric Keyinfo");
+        }
+
+        return $dom->getAttribute('Algorithm');
+
+    }
+
+    /**
+     * Returns the KeyInfo block object
+     *
+     * @throws Zend_InfoCard_Xml_Exception
+     * @return Zend_InfoCard_Xml_KeyInfo_Abstract
+     */
+    public function getKeyInfo()
+    {
+
+        if(isset($this->KeyInfo)) {
+            return Zend_InfoCard_Xml_KeyInfo::getInstance($this->KeyInfo);
+        }
+
+        throw new Zend_InfoCard_Xml_Exception("Unable to locate a KeyInfo block");
+    }
+
+    /**
+     * Return the encrypted value of the block in base64 format
+     *
+     * @throws Zend_InfoCard_Xml_Exception
+     * @return string The Value of the CipherValue block in base64 format
+     */
+    public function getCipherValue()
+    {
+
+        $this->registerXPathNamespace('e', 'http://www.w3.org/2001/04/xmlenc#');
+
+        list($cipherdata) = $this->xpath("//e:CipherData");
+
+        if(!($cipherdata instanceof Zend_InfoCard_Xml_Element)) {
+            throw new Zend_InfoCard_Xml_Exception("Unable to find the e:CipherData block");
+        }
+
+        $cipherdata->registerXPathNameSpace('enc', 'http://www.w3.org/2001/04/xmlenc#');
+        list($ciphervalue) = $cipherdata->xpath("//enc:CipherValue");
+
+        if(!($ciphervalue instanceof Zend_InfoCard_Xml_Element)) {
+            throw new Zend_InfoCard_Xml_Exception("Unable to fidn the enc:CipherValue block");
+        }
+
+        return (string)$ciphervalue;
+    }
+}