decode() public method

对解密后的明文进行补位删除
public decode ( $text ) : 删除填充补位后的明文
return 删除填充补位后的明文
示例#1
0
 public function decrypt($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, $xml_content);
 }
 public function decrypt($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 {
         //去除补位字符
         $pkc_encoder = new PKCS7Encoder();
         $result = $pkc_encoder->decode($decrypted);
         //去除16位随机字符串,网络字节序和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);
 }
示例#3
0
 /**
  * 对密文进行解密
  *
  * @param string $encrypted 需要解密的密文
  * @param string $corp_id
  * @return string 解密得到的明文
  */
 public function decrypt($encrypted, $corp_id)
 {
     try {
         //使用BASE64对需要解密的字符串进行解码
         $cipherText = base64_decode($encrypted);
         $iv = substr($this->_key, 0, self::INIT_VECTOR_SIZE);
         $decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $this->_key, $cipherText, MCRYPT_MODE_CBC, $iv);
     } catch (\Exception $e) {
         return false;
     }
     try {
         //去除补位字符
         $result = PKCS7Encoder::decode($decrypted);
         //去除16位随机字符串,网络字节序和AppId
         if (strlen($result) < self::RANDOM_STRING_LEN) {
             return '';
         }
         $content = substr($result, self::RANDOM_STRING_LEN);
         list(, $xmlContentLen) = unpack('N', substr($content, 0, 4));
         $xmlContent = substr($content, 4, $xmlContentLen);
         $fromCorpID = substr($content, $xmlContentLen + 4);
     } catch (\Exception $e) {
         return false;
     }
     if ($fromCorpID != $corp_id) {
         return false;
     }
     return $xmlContent;
 }
示例#4
0
 /**
  * 对密文进行解密
  * @param string $encrypted 需要解密的密文
  * @return string 解密得到的明文
  */
 public function decrypt($encrypted, $appid)
 {
     try {
         //使用BASE64对需要解密的字符串进行解码
         $ciphertext_dec = base64_decode($encrypted);
         $module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
         $iv = substr($this->key, 0, 16);
         mcrypt_generic_init($module, $this->key, $iv);
         //解密
         $decrypted = mdecrypt_generic($module, $ciphertext_dec);
         mcrypt_generic_deinit($module);
         mcrypt_module_close($module);
     } catch (Exception $e) {
         return array(ErrorCode::$DecryptAESError, null);
     }
     try {
         //去除补位字符
         $pkc_encoder = new PKCS7Encoder();
         $result = $pkc_encoder->decode($decrypted);
         //去除16位随机字符串,网络字节序和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);
         $from_appid = substr($content, $xml_len + 4);
         if (!$appid) {
             $appid = $from_appid;
         }
         //如果传入的appid是空的,则认为是订阅号,使用数据中提取出来的appid
     } catch (Exception $e) {
         //print $e;
         return array(ErrorCode::$IllegalBuffer, null);
     }
     if ($from_appid != $appid) {
         return array(ErrorCode::$ValidateAppidError, null);
     }
     //不注释上边两行,避免传入appid是错误的情况
     return array(0, $xml_content, $from_appid);
     //增加appid,为了解决后面加密回复消息的时候没有appid的订阅号会无法回复
 }
示例#5
0
文件: aes.php 项目: mysterin/myutils
 /**
  * 对密文进行解密
  * @param string $encrypted 需要解密的密文
  * @return string 解密得到的明文
  */
 public function decrypt($encrypted)
 {
     try {
         //使用BASE64对需要解密的字符串进行解码
         $ciphertext_dec = base64_decode($encrypted);
         $module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
         $iv = substr($this->key, 0, 16);
         mcrypt_generic_init($module, $this->key, $iv);
         //解密
         $decrypted = mdecrypt_generic($module, $ciphertext_dec);
         mcrypt_generic_deinit($module);
         mcrypt_module_close($module);
     } catch (Exception $e) {
         return null;
     }
     try {
         //去除补位字符
         $pkc_encoder = new PKCS7Encoder();
         $result = $pkc_encoder->decode($decrypted);
         //去除16位随机字符串,网络字节序和机身编号
         if (strlen($result) < 16) {
             return "";
         }
         $content = substr($result, 16, strlen($result));
         $len_list = unpack("N", substr($content, 0, 4));
         $command_len = $len_list[1];
         $command_content = substr($content, 4, $command_len);
     } catch (Exception $e) {
         //print $e;
         return null;
     }
     return $command_content;
 }
示例#6
0
文件: Prpcrypt.php 项目: gtyd/jira
 /**
  * @param string $encrypted 密文
  * @param string $corpid    
  * @param boolean $validCorpid 是否验证corpid,默认验证
  * @return NULL|string
  */
 public function decrypt($encrypted, $corpid, $validCorpid = true)
 {
     try {
         //使用BASE64对需要解密的字符串进行解码
         $ciphertext_dec = base64_decode($encrypted);
         $module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
         $iv = substr($this->key, 0, 16);
         mcrypt_generic_init($module, $this->key, $iv);
         //解密
         $decrypted = mdecrypt_generic($module, $ciphertext_dec);
         mcrypt_generic_deinit($module);
         mcrypt_module_close($module);
     } catch (Exception $e) {
         $this->err = new PrpcryptError($e->getCode(), $e->getMessage(), $e->getLine(), $e->getFile(), $e->getTrace());
         return null;
     }
     try {
         //去除补位字符
         $pkc_encoder = new PKCS7Encoder();
         $result = $pkc_encoder->decode($decrypted);
         //去除16位随机字符串,网络字节序和AppId
         if (strlen($result) < 16) {
             $this->err = new PrpcryptError(PrpcryptError::RESULT_LENGHT_LESS_THAN_16, 'result length is less than 16', __LINE__, __FILE__, debug_backtrace());
             return null;
         }
         $content = substr($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) {
         $this->err = new PrpcryptError($e->getCode(), $e->getMessage(), $e->getLine(), $e->getFile(), $e->getTrace());
         return null;
     }
     if ($validCorpid && $from_corpid != $corpid) {
         $this->err = new PrpcryptError(PrpcryptError::CORPID_IS_NOT_VALID, "coprid given is :{$corpid}, but the from corpid is : {$from_corpid}", __LINE__, __FILE__, debug_backtrace());
         return null;
     } else {
         return $xml_content;
     }
 }
示例#7
0
 /**
  * 对密文进行解密
  * @param string $encrypted 需要解密的密文
  * @return string 解密得到的明文
  */
 public function decrypt($encrypted, $corpid)
 {
     try {
         //使用BASE64对需要解密的字符串进行解码
         $ciphertext_dec = base64_decode($encrypted);
         $module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
         $iv = trim(substr($this->key, 0, 16));
         mcrypt_generic_init($module, $this->key, $iv);
         //解密
         $decrypted = mdecrypt_generic($module, $ciphertext_dec);
         mcrypt_generic_deinit($module);
         mcrypt_module_close($module);
     } catch (Exception $e) {
         return array(ErrorCode::$DecryptAESError, null);
     }
     try {
         //去除补位字符
         \Log::info('tt');
         $pkc_encoder = new PKCS7Encoder();
         $result = $pkc_encoder->decode($decrypted);
         //去除16位随机字符串,网络字节序和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];
         $xml_content = trim(substr($content, 4, $xml_len));
         $from_corpid = trim(substr($content, $xml_len + 4));
     } catch (Exception $e) {
         print $e;
         return array(ErrorCode::$IllegalBuffer, null);
     }
     \Log::info("from:" . $xml_content);
     \Log::info("corp:" . $corpid);
     //TODO 检查不通过 注释掉
     //		if ($from_corpid != $corpid)
     //			return array(ErrorCode::$ValidateCorpidError, null);
     \Log::info("corpID:" . $corpid);
     \Log::info("fromCorpId" . $from_corpid);
     return array(0, $xml_content);
 }