web/lib/Zend/Crypt/Rsa.php
changeset 64 162c1de6545a
parent 19 1c2f13fd785c
child 68 ecaf28ffe26e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/Zend/Crypt/Rsa.php	Fri Mar 11 15:05:35 2011 +0100
@@ -0,0 +1,324 @@
+<?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_Crypt
+ * @subpackage Rsa
+ * @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: Rsa.php 23439 2010-11-23 21:10:14Z alexander $
+ */
+
+/**
+ * @see Zend_Crypt_Rsa_Key_Private
+ */
+require_once 'Zend/Crypt/Rsa/Key/Private.php';
+
+/**
+ * @see Zend_Crypt_Rsa_Key_Public
+ */
+require_once 'Zend/Crypt/Rsa/Key/Public.php';
+
+/**
+ * @category   Zend
+ * @package    Zend_Crypt
+ * @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_Crypt_Rsa
+{
+
+    const BINARY = 'binary';
+    const BASE64 = 'base64';
+
+    protected $_privateKey;
+
+    protected $_publicKey;
+
+    /**
+     * @var string
+     */
+    protected $_pemString;
+
+    protected $_pemPath;
+
+    protected $_certificateString;
+
+    protected $_certificatePath;
+
+    protected $_hashAlgorithm;
+
+    protected $_passPhrase;
+
+    /**
+     * Class constructor
+     *
+     * @param array $options
+     * @throws Zend_Crypt_Rsa_Exception
+     */
+    public function __construct(array $options = null)
+    {
+        if (!extension_loaded('openssl')) {
+            require_once 'Zend/Crypt/Rsa/Exception.php';
+            throw new Zend_Crypt_Rsa_Exception('Zend_Crypt_Rsa requires openssl extention to be loaded.');
+        }
+
+        // Set _hashAlgorithm property when we are sure, that openssl extension is loaded
+        // and OPENSSL_ALGO_SHA1 constant is available
+        $this->_hashAlgorithm = OPENSSL_ALGO_SHA1;
+
+        if (isset($options)) {
+            $this->setOptions($options);
+        }
+    }
+
+    public function setOptions(array $options)
+    {
+        if (isset($options['passPhrase'])) {
+            $this->_passPhrase = $options['passPhrase'];
+        }
+        foreach ($options as $option=>$value) {
+            switch ($option) {
+                case 'pemString':
+                    $this->setPemString($value);
+                    break;
+                case 'pemPath':
+                    $this->setPemPath($value);
+                    break;
+                case 'certificateString':
+                    $this->setCertificateString($value);
+                    break;
+                case 'certificatePath':
+                    $this->setCertificatePath($value);
+                    break;
+                case 'hashAlgorithm':
+                    $this->setHashAlgorithm($value);
+                    break;
+            }
+        }
+    }
+
+    public function getPrivateKey()
+    {
+        return $this->_privateKey;
+    }
+
+    public function getPublicKey()
+    {
+        return $this->_publicKey;
+    }
+
+    /**
+     * @param string $data
+     * @param Zend_Crypt_Rsa_Key_Private $privateKey
+     * @param string $format
+     * @return string
+     */
+    public function sign($data, Zend_Crypt_Rsa_Key_Private $privateKey = null, $format = null)
+    {
+        $signature = '';
+        if (isset($privateKey)) {
+            $opensslKeyResource = $privateKey->getOpensslKeyResource();
+        } else {
+            $opensslKeyResource = $this->_privateKey->getOpensslKeyResource();
+        }
+        $result = openssl_sign(
+            $data, $signature,
+            $opensslKeyResource,
+            $this->getHashAlgorithm()
+        );
+        if ($format == self::BASE64) {
+            return base64_encode($signature);
+        }
+        return $signature;
+    }
+
+    /**
+     * @param string $data
+     * @param string $signature
+     * @param string $format
+     * @return string
+     */
+    public function verifySignature($data, $signature, $format = null)
+    {
+        if ($format == self::BASE64) {
+            $signature = base64_decode($signature);
+        }
+        $result = openssl_verify($data, $signature,
+            $this->getPublicKey()->getOpensslKeyResource(),
+            $this->getHashAlgorithm());
+        return $result;
+    }
+
+    /**
+     * @param string $data
+     * @param Zend_Crypt_Rsa_Key $key
+     * @param string $format
+     * @return string
+     */
+    public function encrypt($data, Zend_Crypt_Rsa_Key $key, $format = null)
+    {
+        $encrypted = '';
+        $function = 'openssl_public_encrypt';
+        if ($key instanceof Zend_Crypt_Rsa_Key_Private) {
+            $function = 'openssl_private_encrypt';
+        }
+        $function($data, $encrypted, $key->getOpensslKeyResource());
+        if ($format == self::BASE64) {
+            return base64_encode($encrypted);
+        }
+        return $encrypted;
+    }
+
+    /**
+     * @param string $data
+     * @param Zend_Crypt_Rsa_Key $key
+     * @param string $format
+     * @return string
+     */
+    public function decrypt($data, Zend_Crypt_Rsa_Key $key, $format = null)
+    {
+        $decrypted = '';
+        if ($format == self::BASE64) {
+            $data = base64_decode($data);
+        }
+        $function = 'openssl_private_decrypt';
+        if ($key instanceof Zend_Crypt_Rsa_Key_Public) {
+            $function = 'openssl_public_decrypt';
+        }
+        $function($data, $decrypted, $key->getOpensslKeyResource());
+        return $decrypted;
+    }
+
+    public function generateKeys(array $configargs = null)
+    {
+        $config = null;
+        $passPhrase = null;
+        if ($configargs !== null) {
+            if (isset($configargs['passPhrase'])) {
+                $passPhrase = $configargs['passPhrase'];
+                unset($configargs['passPhrase']);
+            }
+            $config = $this->_parseConfigArgs($configargs);
+        }
+        $privateKey = null;
+        $publicKey = null;
+        $resource = openssl_pkey_new($config);
+        // above fails on PHP 5.3
+        openssl_pkey_export($resource, $private, $passPhrase);
+        $privateKey = new Zend_Crypt_Rsa_Key_Private($private, $passPhrase);
+        $details = openssl_pkey_get_details($resource);
+        $publicKey = new Zend_Crypt_Rsa_Key_Public($details['key']);
+        $return = new ArrayObject(array(
+           'privateKey'=>$privateKey,
+           'publicKey'=>$publicKey
+        ), ArrayObject::ARRAY_AS_PROPS);
+        return $return;
+    }
+
+    /**
+     * @param string $value
+     */
+    public function setPemString($value)
+    {
+        $this->_pemString = $value;
+        try {
+            $this->_privateKey = new Zend_Crypt_Rsa_Key_Private($this->_pemString, $this->_passPhrase);
+            $this->_publicKey = $this->_privateKey->getPublicKey();
+        } catch (Zend_Crypt_Exception $e) {
+            $this->_privateKey = null;
+            $this->_publicKey = new Zend_Crypt_Rsa_Key_Public($this->_pemString);
+        }
+    }
+
+    public function setPemPath($value)
+    {
+        $this->_pemPath = $value;
+        $this->setPemString(file_get_contents($this->_pemPath));
+    }
+
+    public function setCertificateString($value)
+    {
+        $this->_certificateString = $value;
+        $this->_publicKey = new Zend_Crypt_Rsa_Key_Public($this->_certificateString, $this->_passPhrase);
+    }
+
+    public function setCertificatePath($value)
+    {
+        $this->_certificatePath = $value;
+        $this->setCertificateString(file_get_contents($this->_certificatePath));
+    }
+
+    public function setHashAlgorithm($name)
+    {
+        switch (strtolower($name)) {
+            case 'md2':
+                $this->_hashAlgorithm = OPENSSL_ALGO_MD2;
+                break;
+            case 'md4':
+                $this->_hashAlgorithm = OPENSSL_ALGO_MD4;
+                break;
+            case 'md5':
+                $this->_hashAlgorithm = OPENSSL_ALGO_MD5;
+                break;
+            case 'sha1':
+                $this->_hashAlgorithm = OPENSSL_ALGO_SHA1;
+                break;
+            case 'dss1':
+                $this->_hashAlgorithm = OPENSSL_ALGO_DSS1;
+                break;
+        }
+    }
+
+    /**
+     * @return string
+     */
+    public function getPemString()
+    {
+        return $this->_pemString;
+    }
+
+    public function getPemPath()
+    {
+        return $this->_pemPath;
+    }
+
+    public function getCertificateString()
+    {
+        return $this->_certificateString;
+    }
+
+    public function getCertificatePath()
+    {
+        return $this->_certificatePath;
+    }
+
+    public function getHashAlgorithm()
+    {
+        return $this->_hashAlgorithm;
+    }
+
+    protected function _parseConfigArgs(array $config = null)
+    {
+        $configs = array();
+        if (isset($config['privateKeyBits'])) {
+            $configs['private_key_bits'] = $config['privateKeyBits'];
+        }
+        if (!empty($configs)) {
+            return $configs;
+        }
+        return null;
+    }
+
+}