寻找简单的PHP多路加密方法 [英] looking for simple PHP multi way encryption method

问题描述

我已经看了一下crypt（）（但是只有一个 - 方式）和Mcrypt，GnuPG，但我不满意他们。我认为他们是为了我的简单问题复杂。我该用什么我不需要IV形状或超级安全算法。有没有什么基本的PHP功能，我还不知道？

我只需要隐藏像这样的用户的图像：
ImageJPEG（ImageCreateFromJPEG解码（$ _ REQUEST ['encryptedImage']，'secret key'）））;

解决方案

/ p>

 <？php 
 define（'SECRET'，md5（'Some secret key'））; 
 
函数加密（$ value）{
 $ iv_size = mcrypt_get_iv_size（MCRYPT_RIJNDAEL_256，MCRYPT_MODE_ECB）; 
 $ iv = mcrypt_create_iv（$ iv_size，MCRYPT_RAND）; 
 return mcrypt_encrypt（MCRYPT_RIJNDAEL_256，SECRET，$ value，MCRYPT_MODE_ECB，$ iv）; 
} 
 
函数解密（$ value）{
 $ iv_size = mcrypt_get_iv_size（MCRYPT_RIJNDAEL_256，MCRYPT_MODE_ECB）; 
 $ iv = mcrypt_create_iv（$ iv_size，MCRYPT_RAND）; 
 return trim（mcrypt_decrypt（MCRYPT_RIJNDAEL_256，SECRET，$ value，MCRYPT_MODE_ECB，$ iv））; 
} 
 
？> 
  

I need to decrypt encrypted POST value strings with the aid of a secret static key.

I have had a look into crypt() (but it's only one-way) and Mcrypt, GnuPG,... but I'm not happy with them. I think they are to complex for my simple issue. What should I use? I don't need IV shapes or super safe algorithms. Is there any basic PHP function, that I don't know yet?

I just need to hide image pathes from users like that: ImageJPEG(ImageCreateFromJPEG( decode($_REQUEST['encryptedImage'],'secret Key') ));

解决方案

Cant get simpler then this:

<?php 
define('SECRET',md5('Some secret key'));

function encrypt($value){
    $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
    $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
    return mcrypt_encrypt(MCRYPT_RIJNDAEL_256, SECRET, $value, MCRYPT_MODE_ECB, $iv);
}

function decrypt($value){
    $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
    $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
    return trim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, SECRET, $value, MCRYPT_MODE_ECB, $iv));
}

?>

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