php 7.1 openssl_decrypt() 代替 mcrypt_module_open() 方法

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经过调试发现php版本由原来的7.0升到了7.1（该死....为什么没人告诉我）。mcrypt_module_open()函数在7.1中被贬低，将在7.2中被移除，要用openssl_decrypt()函数代替。废话不多说了。直接给代码

明文加密：

    原代码            

    

     

      

       

      
      

       

        $random = $this->getRandomStr();
       
      
     

      

       

      
      

       

        $text = $random . pack("N", strlen($text)) . $text . $appid;
       
      
     

      

       

      
      

       

        $size = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
       
      
     

      

       

      
      

       

        $module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
       
      
     

      

       

      
      

       

        $iv = substr($this->key, 0, 16);
       
      
     

      

       

      
      

       

        $pkc_encoder = new PKCS7Encoder;
       
      
     

      

       

      
      

       

        $text = $pkc_encoder->encode($text);
       
      
     

      

       

      
      

       

        mcrypt_generic_init($module, $this->key, $iv);
       
      
     

      

       

      
      

       

        $encrypted = mcrypt_generic($module, $text);
       
      
     

      

       

      
      

       

        mcrypt_generic_deinit($module);
       
      
     

      

       

      
      

       

        mcrypt_module_close($module)
       
      
    
   

     修改为

    

     

      

       

      
      

       

        $random = $this->getRandomStr();
       
      
     

      

       

      
      

       

        $text = $random . pack("N", strlen($text)) . $text . $appid;
       
      
     

      

       

      
      

       

        $iv = substr($this->key, 0, 16);
       
      
     

      

       

      
      

       

        $pkc_encoder = new PKCS7Encoder;
       
      
     

      

       

      
      

       

        $text = $pkc_encoder->encode($text);
       
      
     

      

       

      
      

       

        $encrypted = openssl_encrypt($text, 'AES-256-CBC', $this->key, OPENSSL_RAW_DATA|OPENSSL_ZERO_PADDING, $iv);
       
      
    
   

明文解密

    原代码

    

     

      

       

      
      

       

        $ciphertext_dec = base64_decode($encrypted);
       
      
     

      

       

      
      

       

        $module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
       
      
     

      

       

      
      

       

        $iv = substr($this->key, 0, 16);
       
      
     

      

       

      
      

       

        mcrypt_generic_init($module, $this->key, $iv);
       
      
     

      

       

      
      

       

        $decrypted = mdecrypt_generic($module, $ciphertext_dec);
       
      
     

      

       

      
      

       

        mcrypt_generic_deinit($module);
       
      
     

      

       

      
      

       

        mcrypt_module_close($module);
       
      
    
   

    修改为

    

     

      

       

      
      

       

        $ciphertext_dec = base64_decode($encrypted);
       
      
     

      

       

      
      

       

        $iv = substr($this->key, 0, 16);
       
      
     

      

       

      
      

       

        $decrypted = openssl_decrypt($ciphertext_dec, 'AES-256-CBC', $this->key, OPENSSL_RAW_DATA|OPENSSL_ZERO_PADDING, $iv);
       
      
    
   

特此记录一下！完毕。

原文：https://blog.csdn.net/haibo_j/article/details/80759706