PHP mcrypt_enc_get_iv_size函数代码示例

 /**
  * Constructor
  *
  * @param  string      $key        Secret encryption key.
  *                                 It's unsafe to store encryption key in memory, so no getter for key exists.
  * @param  string      $cipher     Cipher algorithm (one of the MCRYPT_ciphername constants)
  * @param  string      $mode       Mode of cipher algorithm (MCRYPT_MODE_modeabbr constants)
  * @param  string|bool $initVector Initial vector to fill algorithm blocks.
  *                                 TRUE generates a random initial vector.
  *                                 FALSE fills initial vector with zero bytes to not use it.
  * @throws Magento_Exception
  */
 public function __construct($key, $cipher = MCRYPT_BLOWFISH, $mode = MCRYPT_MODE_ECB, $initVector = false)
 {
     $this->_cipher = $cipher;
     $this->_mode = $mode;
     $this->_handle = mcrypt_module_open($cipher, '', $mode, '');
     try {
         $maxKeySize = mcrypt_enc_get_key_size($this->_handle);
         if (strlen($key) > $maxKeySize) {
             throw new Magento_Exception('Key must not exceed ' . $maxKeySize . ' bytes.');
         }
         $initVectorSize = mcrypt_enc_get_iv_size($this->_handle);
         if (true === $initVector) {
             /* Generate a random vector from human-readable characters */
             $abc = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
             $initVector = '';
             for ($i = 0; $i < $initVectorSize; $i++) {
                 $initVector .= $abc[rand(0, strlen($abc) - 1)];
             }
         } else {
             if (false === $initVector) {
                 /* Set vector to zero bytes to not use it */
                 $initVector = str_repeat("", $initVectorSize);
             } else {
                 if (!is_string($initVector) || strlen($initVector) != $initVectorSize) {
                     throw new Magento_Exception('Init vector must be a string of ' . $initVectorSize . ' bytes.');
                 }
             }
         }
         $this->_initVector = $initVector;
     } catch (Exception $e) {
         mcrypt_module_close($this->_handle);
         throw $e;
     }
     mcrypt_generic_init($this->_handle, $key, $initVector);
 }

 /**
  * Decryption of data
  *
  * @param string      $data	Data to be decrypted
  * @param bool|string $key	Key, if not specified - system key will be used
  *
  * @return bool|mixed
  */
 function decrypt($data, $key = false)
 {
     if (!$this->encrypt_support) {
         return $data;
     }
     if (!is_resource($this->td)) {
         $this->td = mcrypt_module_open(MCRYPT_BLOWFISH, '', 'cbc', '');
         $this->key = mb_substr($this->key, 0, mcrypt_enc_get_key_size($this->td));
         $this->iv = mb_substr(md5($this->iv), 0, mcrypt_enc_get_iv_size($this->td));
     }
     if ($key === false) {
         $key = $this->key;
     } else {
         $key = mb_substr(md5($this->key) . md5($key), 0, mcrypt_enc_get_key_size($this->td));
     }
     mcrypt_generic_init($this->td, $key, $this->iv);
     errors_off();
     $decrypted = @unserialize(mdecrypt_generic($this->td, $data));
     errors_on();
     mcrypt_generic_deinit($this->td);
     if (is_array($decrypted) && $decrypted['key'] == $key) {
         return $decrypted['data'];
     } else {
         return false;
     }
 }

 /**
  * 实例化类库
  *
  * @param string $secret_key 加密的安全码
  *
  * @return void
  */
 public function __construct($secret_key)
 {
     $this->td = mcrypt_module_open(MCRYPT_3DES, '', MCRYPT_MODE_ECB, '');
     $this->iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($this->td), MCRYPT_DEV_RANDOM);
     $this->ks = mcrypt_enc_get_key_size($this->td);
     $this->key = substr(md5($secret_key), 0, $this->ks);
 }

 /**
  * Initialize mcrypt module
  *
  * @param string $key cipher private key
  * @return Varien_Crypt_Mcrypt
  */
 public function init($key)
 {
     if (!$this->getCipher()) {
         $this->setCipher(MCRYPT_BLOWFISH);
     }
     if (!$this->getMode()) {
         $this->setMode(MCRYPT_MODE_ECB);
     }
     $this->setHandler(mcrypt_module_open($this->getCipher(), '', $this->getMode(), ''));
     if (!$this->getInitVector()) {
         if (MCRYPT_MODE_CBC == $this->getMode()) {
             $this->setInitVector(substr(md5(mcrypt_create_iv(mcrypt_enc_get_iv_size($this->getHandler()), MCRYPT_RAND)), -mcrypt_enc_get_iv_size($this->getHandler())));
         } else {
             $this->setInitVector(mcrypt_create_iv(mcrypt_enc_get_iv_size($this->getHandler()), MCRYPT_RAND));
         }
     }
     $maxKeySize = mcrypt_enc_get_key_size($this->getHandler());
     if (strlen($key) > $maxKeySize) {
         // strlen() intentionally, to count bytes, rather than characters
         $this->setHandler(null);
         throw new Varien_Exception('Maximum key size must be smaller ' . $maxKeySize);
     }
     mcrypt_generic_init($this->getHandler(), $key, $this->getInitVector());
     return $this;
 }

 public function authenticate(array $credentials)
 {
     $mcrypt = mcrypt_module_open(MCRYPT_BLOWFISH, '', MCRYPT_MODE_CBC, '');
     $iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($mcrypt), MCRYPT_DEV_RANDOM);
     mcrypt_generic_init($mcrypt, $this->cryptPassword, $iv);
     $url = $this->getUrl($credentials[self::USERNAME], $credentials[self::PASSWORD], $mcrypt, $iv);
     try {
         $res = $this->httpClient->get($url)->send();
     } catch (\Guzzle\Http\Exception\ClientErrorResponseException $e) {
         if ($e->getResponse()->getStatusCode() === 403) {
             throw new \Nette\Security\AuthenticationException("User '{$credentials[self::USERNAME]}' not found.", self::INVALID_CREDENTIAL);
         } elseif ($e->getResponse()->getStatusCode() === 404) {
             throw new \Nette\Security\AuthenticationException("Invalid password.", self::IDENTITY_NOT_FOUND);
         } else {
             throw $e;
         }
     }
     $responseBody = trim(mdecrypt_generic($mcrypt, $res->getBody(TRUE)));
     $apiData = Json::decode($responseBody);
     $user = $this->db->table('users')->where('id = ?', $apiData->id)->fetch();
     $registered = new \DateTimeImmutable($apiData->registered->date, new \DateTimeZone($apiData->registered->timezone));
     $userData = array('username' => $credentials[self::USERNAME], 'password' => $this->calculateAddonsPortalPasswordHash($credentials[self::PASSWORD]), 'email' => $apiData->email, 'realname' => $apiData->realname, 'url' => $apiData->url, 'signature' => $apiData->signature, 'language' => $apiData->language, 'num_posts' => $apiData->num_posts, 'apiToken' => $apiData->apiToken, 'registered' => $registered->getTimestamp());
     if (!$user) {
         $userData['id'] = $apiData->id;
         $userData['group_id'] = 4;
         $this->db->table('users')->insert($userData);
         $user = $this->db->table('users')->where('username = ?', $credentials[self::USERNAME])->fetch();
     } else {
         $user->update($userData);
     }
     return $this->createIdentity($user);
 }

 public function decrypt($encrypted, $is_id = false)
 {
     static $_map = array();
     if ($is_id) {
         $len = strlen($encrypted);
         $tmp = '';
         for ($i = 0; $i < $len; $i = $i + 2) {
             $tmp = $tmp . chr(hexdec($encrypted[$i] . $encrypted[$i + 1]));
         }
         $encrypted = $tmp;
     } else {
         $encrypted = base64_decode($encrypted);
     }
     $hashkey = md5($encrypted . $this->key);
     if (isset($_map[$hashkey])) {
         return $_map[$hashkey];
     }
     $key = str_pad($this->key, 24, '0');
     $td = mcrypt_module_open(MCRYPT_3DES, '', 'ecb', '');
     $iv = @mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
     $ks = mcrypt_enc_get_key_size($td);
     @mcrypt_generic_init($td, $key, $iv);
     $decrypted = mdecrypt_generic($td, $encrypted);
     mcrypt_generic_deinit($td);
     mcrypt_module_close($td);
     $y = $this->pkcs5_unpad($decrypted);
     if ($is_id) {
         $y = base_convert($y, 36, 10);
     }
     $_map[$hashkey] = $y;
     return $y;
 }

 public static function createEncryptIv()
 {
     $td = mcrypt_module_open(MCRYPT_RIJNDAEL_256, '', MCRYPT_MODE_OFB, '');
     $iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_DEV_RANDOM);
     mcrypt_module_close($td);
     return $iv;
 }

 function ssl_encode($data, $key = '')
 {
     // Use the Encrypt.php function get_key to encode the data.
     $key = $this->get_key($key);
     // Set a random salt
     $salt = substr(md5(mt_rand(), true), 8);
     $block = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
     $pad = $block - strlen($data) % $block;
     $data = $data . str_repeat(chr($pad), $pad);
     // Setup encryption parameters
     $td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, "", MCRYPT_MODE_CBC, "");
     $key_len = mcrypt_enc_get_key_size($td);
     $iv_len = mcrypt_enc_get_iv_size($td);
     $total_len = $key_len + $iv_len;
     $salted = '';
     $dx = '';
     // Salt the key and iv
     while (strlen($salted) < $total_len) {
         $dx = md5($dx . $key . $salt, true);
         $salted .= $dx;
     }
     $key = substr($salted, 0, $key_len);
     $iv = substr($salted, $key_len, $iv_len);
     mcrypt_generic_init($td, $key, $iv);
     $encrypted_data = mcrypt_generic($td, $data);
     mcrypt_generic_deinit($td);
     mcrypt_module_close($td);
     return chunk_split(base64_encode('Salted__' . $salt . $encrypted_data), 32, "\n");
 }

 public function salt()
 {
     $td = mcrypt_module_open(MCRYPT_RIJNDAEL_256, "", MCRYPT_MODE_CBC, "");
     $iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_DEV_URANDOM);
     $hash = hash("Whirlpool", $iv);
     return $hash;
 }

 public function computeSign($sharedSecret)
 {
     if (!$this->isValid) {
         throw new Exception(__METHOD__ . ": Message was not validated.");
     }
     try {
         // ak mame zadany shared secret v hexa tvare tak ho prevedieme na 32 bytovy string
         if (strlen($sharedSecret) == 64) {
             $sharedSecret = pack('H*', $sharedSecret);
         }
         $base = $this->GetSignatureBase();
         $bytesHash = sha1($base, TRUE);
         // vezmeme prvych 16 bytov
         $bytesHash = substr($bytesHash, 0, 16);
         $aes = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_ECB, '');
         $iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($aes), MCRYPT_RAND);
         mcrypt_generic_init($aes, $sharedSecret, $iv);
         $bytesSign = mcrypt_generic($aes, $bytesHash);
         mcrypt_generic_deinit($aes);
         mcrypt_module_close($aes);
         $sign = strtoupper(bin2hex($bytesSign));
     } catch (Exception $e) {
         return FALSE;
     }
     return $sign;
 }

 public static function getiv($cipher = 'twofish', $mode = 'cfb')
 {
     $td = mcrypt_module_open($cipher, '', $mode, '');
     $iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
     mcrypt_module_close($td);
     return $iv;
 }

 public static function decrypt($varValue, $clesCryptage = null)
 {
     self::initialize();
     // Recursively decrypt arrays
     if (is_array($varValue)) {
         foreach ($varValue as $k => $v) {
             $varValue[$k] = self::decrypt(urldecode($v));
         }
         return $varValue;
     } elseif ($varValue == '') {
         return '';
     }
     $varValue = base64_decode($varValue);
     $ivsize = mcrypt_enc_get_iv_size(self::$resTd);
     $iv = substr($varValue, 0, $ivsize);
     $varValue = substr($varValue, $ivsize);
     if ($varValue == '') {
         return '';
     }
     if ($clesCryptage === null) {
         $clesCryptage = self::$clesCryptage;
     }
     mcrypt_generic_init(self::$resTd, md5($clesCryptage), $iv);
     $strDecrypted = mdecrypt_generic(self::$resTd, $varValue);
     mcrypt_generic_deinit(self::$resTd);
     if (strpos($strDecrypted, "%") !== false) {
         return urldecode($strDecrypted);
     } else {
         return $strDecrypted;
     }
 }

 function phpFreaksCrypto($key = 'a843l?nv89rjfd}O(jdnsleken0', $iv = false, $algorithm = 'tripledes', $mode = 'ecb')
 {
     if (extension_loaded('mcrypt') === FALSE) {
         //$prefix = (PHP_SHLIB_SUFFIX == 'dll') ? 'php_' : '';
         //dl($prefix . 'mcrypt.' . PHP_SHLIB_SUFFIX) or die('The Mcrypt module could not be loaded.');
         die('The Mcrypt module is not loaded and is required.');
     }
     if ($mode != 'ecb' && $iv === false) {
         /*
           the iv must remain the same from encryption to decryption and is usually
           passed into the encrypted string in some form, but not always.
         */
         die('In order to use encryption modes other then ecb, you must specify a unique and consistent initialization vector.');
     }
     // set mcrypt mode and cipher
     $this->td = mcrypt_module_open($algorithm, '', $mode, '');
     // Unix has better pseudo random number generator then mcrypt, so if it is available lets use it!
     //$random_seed = strstr(PHP_OS, "WIN") ? MCRYPT_RAND : MCRYPT_DEV_RANDOM;
     $random_seed = MCRYPT_RAND;
     // if initialization vector set in constructor use it else, generate from random seed
     $iv = $iv === false ? mcrypt_create_iv(mcrypt_enc_get_iv_size($this->td), $random_seed) : substr($iv, 0, mcrypt_enc_get_iv_size($this->td));
     // get the expected key size based on mode and cipher
     $expected_key_size = mcrypt_enc_get_key_size($this->td);
     // we dont need to know the real key, we just need to be able to confirm a hashed version
     $key = substr(md5($key), 0, $expected_key_size);
     // initialize mcrypt library with mode/cipher, encryption key, and random initialization vector
     mcrypt_generic_init($this->td, $key, $iv);
 }

 /**
  * Encrypt data for security
  *
  * @param mixed $data
  * @return string
  */
 public static function encrypt($data)
 {
     // Don't do anything with empty data
     $data = trim($data);
     if (empty($data)) {
         return null;
     }
     // Check if encryption was turned off
     if (MagebridgeModelConfig::load('encryption') == 0) {
         return $data;
     }
     // Check if SSL is already in use, so encryption is not needed
     if (MagebridgeModelConfig::load('protocol') == 'https') {
         return $data;
     }
     // Check for mcrypt
     if (!function_exists('mcrypt_get_iv_size') || !function_exists('mcrypt_cfb')) {
         return $data;
     }
     // Generate a random key
     $random = str_shuffle('0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz');
     $key = MageBridgeEncryptionHelper::getSaltedKey($random);
     try {
         $td = mcrypt_module_open(MCRYPT_CAST_256, '', 'ecb', '');
         $iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
         mcrypt_generic_init($td, $key, $iv);
         $encrypted = mcrypt_generic($td, $data);
         $encoded = MageBridgeEncryptionHelper::base64_encode($encrypted);
     } catch (Exception $e) {
         Mage::getSingleton('magebridge/debug')->error("Error while decrypting: " . $e->getMessage());
         return null;
     }
     return $encoded . '|=|' . $random;
 }

 public function __construct($key, $algorithm, $mode = 'ecb', $iv = false)
 {
     /* In non-ECB mode, an initialization vector is required. */
     if ($mode != 'ecb' && $iv === false) {
         return false;
     }
     /* Try to open the encryption module. */
     $this->_td = mcrypt_module_open($algorithm, '', $mode, '');
     if ($this->_td === false) {
         return false;
     }
     /* Use UNIX random number generator if available. */
     if (strstr(PHP_OS, 'WIN') !== false) {
         $randomSeed = MCRYPT_RAND;
     } else {
         $randomSeed = MCRYPT_DEV_RANDOM;
     }
     /* If an initialization vector was not specified, create one;
      * otherwise ensure that the specified IV is the proper size.
      */
     if ($iv === false) {
         $iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($this->_td), $randomSeed);
     } else {
         $iv = substr($iv, 0, mcrypt_enc_get_iv_size($this->_td));
     }
     /* Trim the key to the maximum allowed key size. */
     $key = substr($key, 0, mcrypt_enc_get_key_size($this->_td));
     /* Initialize the MCrypt library. */
     mcrypt_generic_init($this->_td, $key, $iv);
 }