PHP mcrypt_module_close函數代碼示例

 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 function decrypt($encrypted, $corpid)
 {
     try {
         $ciphertext_dec = base64_decode($encrypted);
         $module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
         $iv = substr($this->key, 0, 16);
         mcrypt_generic_init($module, $this->key, $iv);
         $decrypted = mdecrypt_generic($module, $ciphertext_dec);
         mcrypt_generic_deinit($module);
         mcrypt_module_close($module);
     } catch (Exception $e) {
         return array(ErrorCode::$DecryptAESError, null);
     }
     try {
         //去除補位字符
         $pkc_encoder = new PKCS7Encoder();
         $result = $pkc_encoder->decode($decrypted);
         //去除16位隨機字符串,網絡字節序和AppId
         if (strlen($result) < 16) {
             return "";
         }
         $content = substr($result, 16, strlen($result));
         $len_list = unpack("N", substr($content, 0, 4));
         $xml_len = $len_list[1];
         $xml_content = substr($content, 4, $xml_len);
         $from_corpid = substr($content, $xml_len + 4);
     } catch (Exception $e) {
         print $e;
         return array(ErrorCode::$DecryptAESError, null);
     }
     if ($from_corpid != $corpid) {
         return array(ErrorCode::$ValidateSuiteKeyError, null);
     }
     return array(0, $xml_content);
 }

function enkripsi_plain2($algoritma, $mode, $secretkey, $fileplain)
{
    /* Membuka Modul untuk memilih Algoritma & Mode Operasi */
    $td = mcrypt_module_open($algoritma, '', $mode, '');
    /* Inisialisasi IV dan Menentukan panjang kunci yang digunakan*/
    $iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
    $ks = mcrypt_enc_get_key_size($td);
    /* Menghasilkan Kunci */
    $key = $secretkey;
    //echo "kuncinya : ". $key. "<br>";
    /* Inisialisasi */
    mcrypt_generic_init($td, $key, $iv);
    /* Enkripsi Data, dimana hasil enkripsi harus di encode dengan base64.\
       Hal ini dikarenakan web browser tidak dapat membaca karakter-karakter\
       ASCII dalam bentuk simbol-simbol */
    $buffer = $fileplain;
    $encrypted = mcrypt_generic($td, $buffer);
    $encrypted1 = base64_encode($iv) . ";" . base64_encode($encrypted);
    $encrypted2 = base64_encode($encrypted1);
    $filecipher = $encrypted2;
    /* Menghentikan proses enkripsi dan menutup modul */
    mcrypt_generic_deinit($td);
    mcrypt_module_close($td);
    return $filecipher;
}

 public function __destruct()
 {
     mcrypt_module_close($this->cipher);
     unset($this->cipher);
     unset($this->iv);
     unset($this->cipher_key);
 }

 public static function decrypt($string, $key = null, $salt = null, $iv = null)
 {
     $config = ConfigManager::getConfig('Crypto', 'AES256')->AuxConfig;
     if ($key === null) {
         $key = $config->key;
     }
     if ($salt === null) {
         $salt = $config->salt;
     }
     if ($iv === null) {
         $iv = $config->iv;
     }
     $td = mcrypt_module_open('rijndael-128', '', MCRYPT_MODE_CBC, '');
     $ks = mcrypt_enc_get_key_size($td);
     $bs = mcrypt_enc_get_block_size($td);
     $iv = substr(hash("sha256", $iv), 0, $bs);
     // Create key
     $key = Crypto::pbkdf2("sha512", $key, $salt, $config->pbkdfRounds, $ks);
     // Initialize encryption module for decryption
     mcrypt_generic_init($td, $key, $iv);
     $decryptedString = "";
     // Decrypt encrypted string
     try {
         if (ctype_xdigit($string)) {
             $decryptedString = trim(mdecrypt_generic($td, pack("H*", $string)));
         }
     } catch (ErrorException $e) {
     }
     // Terminate decryption handle and close module
     mcrypt_generic_deinit($td);
     mcrypt_module_close($td);
     // Show string
     return $decryptedString;
 }

 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;
 }

 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 decrypt($encrypted, $appid)
 {
     try {
         $ciphertext_dec = base64_decode($encrypted);
         $module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
         $iv = substr($this->key, 0, 16);
         mcrypt_generic_init($module, $this->key, $iv);
         $decrypted = mdecrypt_generic($module, $ciphertext_dec);
         mcrypt_generic_deinit($module);
         mcrypt_module_close($module);
     } catch (Exception $e) {
         return array(ErrorCode::$DecryptAESError, NULL);
     }
     try {
         $pkc_encoder = new PKCS7Encoder();
         $result = $pkc_encoder->decode($decrypted);
         if (strlen($result) < 16) {
             return '';
         }
         $content = substr($result, 16, strlen($result));
         $len_list = unpack('N', substr($content, 0, 4));
         $xml_len = $len_list[1];
         $xml_content = substr($content, 4, $xml_len);
         $from_appid = substr($content, $xml_len + 4);
     } catch (Exception $e) {
         print $e;
         return array(ErrorCode::$IllegalBuffer, NULL);
     }
     if ($from_appid != $appid) {
         return array(ErrorCode::$ValidateAppidError, NULL);
     }
     return array(0, $xml_content);
 }

 static function decrypt($input, $base64 = true)
 {
     if (!$input || !strlen($input) > 0) {
         return null;
     }
     if (!($td = mcrypt_module_open('rijndael-256', '', 'ctr', ''))) {
         return null;
     }
     if ($base64) {
         $content = base64_decode($input);
     } else {
         $content = $input;
     }
     $iv = substr($content, 0, 32);
     $extract = substr($content, strlen($content) - 32);
     $content = substr($content, 32, strlen($content) - 64);
     $mac = self::pbkdf2($iv . $content, MSettings::$c_key, 1000, 32);
     if ($extract !== $mac) {
         return null;
     }
     if (mcrypt_generic_init($td, MSettings::$c_key, $iv) !== 0) {
         return null;
     }
     $content = mdecrypt_generic($td, $content);
     $content = unserialize($content);
     mcrypt_generic_deinit($td);
     mcrypt_module_close($td);
     return $content;
 }

 public function __destruct()
 {
     if ($this->_handler) {
         mcrypt_generic_deinit($this->_handler);
         mcrypt_module_close($this->_handler);
     }
 }

function decryptNET3DES($key, $iv, $text)
{
    if (empty($text)) {
        return "";
    }
    $td = mcrypt_module_open(MCRYPT_3DES, '', MCRYPT_MODE_ECB, '');
    // 把key值補充完整，在PHP裏麵如果key值不夠24位剩下的會自動補0，但是在.net中，會做一個循環把前麵的值補充到後麵補夠24位，所以這裏強製補前麵的字符
    $key_add = 24 - strlen($key);
    $key .= substr($key, 0, $key_add);
    mcrypt_generic_init($td, $key, $iv);
    $decrypt_text = mdecrypt_generic($td, $text);
    mcrypt_generic_deinit($td);
    mcrypt_module_close($td);
    //去掉padding的尾巴，因為.net中默認的padding是PKCS7，而php中默認的padding是zero，所以在.net使用默認的情況下，要將php程序的padding重新設置
    $block = mcrypt_get_block_size('tripledes', 'ecb');
    $packing = ord($decrypt_text[strlen($decrypt_text) - 1]);
    if ($packing and $packing < $block) {
        for ($P = strlen($decrypt_text) - 1; $P >= strlen($decrypt_text) - $packing; $P--) {
            if (ord($decrypt_text[$P]) != $packing) {
                $packing = 0;
            }
        }
    }
    $decrypt_text = substr($decrypt_text, 0, strlen($decrypt_text) - $packing);
    return $decrypt_text;
}

 public function decrypt($msg, $k, $base64 = false)
 {
     if ($base64) {
         $msg = base64_decode($msg);
     }
     if (!($td = mcrypt_module_open('rijndael-256', '', 'ctr', ''))) {
         return false;
     }
     $iv = substr($msg, 0, 32);
     $mo = strlen($msg) - 32;
     $em = substr($msg, $mo);
     $msg = substr($msg, 32, strlen($msg) - 64);
     $mac = $this->pbkdf2($iv . $msg, $k, 1000, 32);
     if ($em !== $mac) {
         return false;
     }
     if (mcrypt_generic_init($td, $k, $iv) !== 0) {
         return false;
     }
     $msg = mdecrypt_generic($td, $msg);
     $msg = unserialize($msg);
     mcrypt_generic_deinit($td);
     mcrypt_module_close($td);
     return $msg;
 }

 public function computeSign($sharedSecret)
 {
     if (!$this->isValid) {
         throw new Exception(__METHOD__ . ": Message was not validated.");
     }
     try {
         $bytesHash = sha1($this->GetSignatureBase(), true);
         $sharedSecret = pack('H*', $sharedSecret);
         // uprava pre PHP < 5.0
         if (strlen($bytesHash) != 20) {
             $bytes = "";
             for ($i = 0; $i < strlen($bytesHash); $i += 2) {
                 $bytes .= chr(hexdec(substr($str, $i, 2)));
             }
             $bytesHash = $bytes;
         }
         $cipher = mcrypt_module_open(MCRYPT_RIJNDAEL_128, "", MCRYPT_MODE_ECB, "");
         $iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($cipher), MCRYPT_RAND);
         mcrypt_generic_init($cipher, $sharedSecret, $iv);
         $text = $this->pad(substr($bytesHash, 0, 16), mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB));
         $bytesSign = mcrypt_generic($cipher, $text);
         mcrypt_generic_deinit($cipher);
         mcrypt_module_close($cipher);
         $sign = substr(strtoupper(bin2hex($bytesSign)), 0, 32);
     } catch (Exception $e) {
         return false;
     }
     return $sign;
 }

 public function __destruct()
 {
     //If there is a mcrypt module close it
     if (isset($this->_td)) {
         mcrypt_module_close($this->_td);
     }
 }

 public function __destruct()
 {
     if ($this->resource !== null) {
         mcrypt_module_close($this->resource);
         $this->resource = null;
     }
 }