PHP AES解密工作加密NOT [英] PHP AES Decryption working Encryption NOT

问题描述

所以，我有4件工作，4加密，iOS加密解密从这个链接
我可以解密从iOS加密的数据我无法在PHP端加密。
当我做echo加密代码。 PHP打印像F>HFl8aRprints这是什么意思？

SALTKEY ='a16byteslongkey！';

解密代码：工作

  $ result = mcrypt_decrypt MCRYPT_RIJNDAEL_128，（SALTKEY。str_repeat（chr（0x00），16）），
 base64_decode（$ text），'ecb'）; 
 $ pad_char = ord（substr（$ result，-1））; 
 return substr（$ result，0，strlen（$ result） -  $ pad_char）; 
  

加密代码：不工作

  $ result = mcrypt_encrypt（MCRYPT_RIJNDAEL_128，（SALTKEY。str_repeat（chr（0x00），16）），
 base64_encode（$ text），'ecb' ; 
 $ pad_char = ord（substr（$ result，-1））; 
 return substr（$ result，0，strlen（$ result） -  $ pad_char）; 
  

• iOS上的结果 Text =Hello
  
  加密=7opqbb7sEVNoXplyQv / X8g ==
  
  解密（7opqbb7sEVNoXplyQv / X8g ==）=Hello




• PHP的结果：Text =7opqbb7sEVNoXplyQv / X8g ==
  
  Decryption =Hello
  
  加密（你好）=_〜TPn〜p3MF？

解决方案>

我认为IOS加密在给出一个8位的表示方面给出了7位的结果（看起来像是base64编码），这显然是很明显的。

您似乎没有将 的操作。

解密由 base64_decode 执行输入，然后应用 mcrypt_decrypt 。因此，要反过来执行，您需要先 mcrypt_encrypt ，然后然后 base64_encode

ie

  $ result = base64_encode（
 mcrypt_encrypt（MCRYPT_RIJNDAEL_128，
（SALTKEY。str_repeat（chr（0x00），16）），
 $ text，'ecb'））; 
  

So, I have 3 Pieces out of 4 working, iOS Encrypt-Decrypt from this Link And I am able to Decrypt the data Encrypted from iOS I am having trouble Encrypting on PHP side. When I do echo Encryption code. PHP prints something like F>HFl8aR what does it mean ?

SALTKEY = 'a16byteslongkey!';

Decryption Code: Working

     $result =  mcrypt_decrypt(MCRYPT_RIJNDAEL_128, (SALTKEY . str_repeat(chr(0x00), 16)), 
                               base64_decode($text), 'ecb');
     $pad_char = ord(substr($result, -1));
     return substr($result, 0, strlen($result) - $pad_char);

Encryption Code : Not Working

     $result =  mcrypt_encrypt(MCRYPT_RIJNDAEL_128, (SALTKEY . str_repeat(chr(0x00), 16)), 
                               base64_encode($text), 'ecb');
     $pad_char = ord(substr($result, -1));
     return substr($result, 0, strlen($result) - $pad_char);

• Results on iOS : Text = "Hello"
  Encryption = "7opqbb7sEVNoXplyQv/X8g=="
  Decryption of (7opqbb7sEVNoXplyQv/X8g==) = "Hello"

• Results on PHP : Text = "7opqbb7sEVNoXplyQv/X8g=="
  Decryption = "Hello"
  Encryption of (Hello) = "_~TPn~p3MF?"

解决方案

I think its fairly obvious that the IOS encryption is giving a 7-bit result (looks like base64 encoded) while the PHP is giving an 8-bit representation.

You don't seem to have got the hang of reversing the operation.

The decryption is performed by base64_decodeing the input, then applying mcrypt_decrypt. It follows that to perform this in reverse, you'd need to first mcrypt_encrypt, and then base64_encode.

i.e.

 $result =  base64_encode(
          mcrypt_encrypt(MCRYPT_RIJNDAEL_128, 
                (SALTKEY . str_repeat(chr(0x00), 16)), 
                $text, 'ecb'));

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