用变音符号加密和解密

问题描述：

I have these code for encrypt and decrypt.

It works good for text (for example: "This is a text"), which is withnout diacritics (that means without : ěščřžýáíéúů). But I need encrypt and decrypt text with this special letters (with : ěščřžýáíéúů).

Can somebody help me, please?

Thank so much for every answer and help.

Have a nice day. M.

define ("ENCRYPTION_KEY", "QaY7e4d1c");
$string= "This is a text"; // -> this work alright 
//$string= "áýžřčšě";  I NEED THIS TEXT ENCRYPT AND DECRTYPT
echo $encrypted = encrypt($string, ENCRYPTION_KEY);
echo "<br />";
echo $decrypted = decrypt($encrypted, ENCRYPTION_KEY);
function encrypt ($pure_string,$encryption_key)
{
$iv_size = mcrypt_get_iv_size(MCRYPT_BLOWFISH,MCRYPT_MODE_ECB);
$iv = mcrypt_create_iv($iv_size,MCRYPT_RAND);
$encrypted_string =             mcrypt_encrypt(MCRYPT_BLOWFISH,$encryption_key,utf8_encode($pure_string),MCRYPT_MODE_ECB,$iv);
return $encrypted_string;
} 
function decrypt ($encrypted_string,$encryption_key) 
{
$iv_size = mcrypt_get_iv_size(MCRYPT_BLOWFISH,MCRYPT_MODE_ECB);
$iv = mcrypt_create_iv($iv_size,MCRYPT_RAND);
$decrypted_string =     mcrypt_decrypt(MCRYPT_BLOWFISH,$encryption_key,$encrypted_string,MCRYPT_MODE_ECB ,$iv);
return $decrypted_string;
}

我有这些代码用于加密和解密。 p>

它适用于文本（例如：”这是一个文本“），它没有变音符号（这意味着没有：ěščřžýáíéú......）。 But 我需要用这个特殊的字母加密和解密文本（用：ěščřžýáíéúů）。 p>

有人可以帮助我吗？ p>

非常感谢每一个人回答和帮助。 p>

祝你有个愉快的一天。 M。 p>

  define（“ENCRYPTION_KEY”，“QaY7e4d1c”）; 
 $ string =“这是一个文本”;  //  - ＆gt; 这项工作好吧
 // $ string =“áýžřčšě”; 我需要这个文本加密和DECRTYPT 
echo $ encrypted = encrypt（$ string，ENCRYPTION_KEY）; 
echo“＆lt; br /＆gt;”; 
echo $ decrypted = decrypt（$ encrypted，ENCRYPTION_KEY）; 
function encrypt（$ pure_string  ，$ encryption_key）
 {
 $ iv_size = mcrypt_get_iv_size（MCRYPT_BLOWFISH，MCRYPT_MODE_ECB）; 
 $ iv = mcrypt_create_iv（$ iv_size，MCRYPT_RAND）; 
 $ encrypted_string = mcrypt_encrypt（MCRYPT_BLOWFISH，$ encryption_key，utf8_encode（$ pure_string），  MCRYPT_MODE_ECB，$ iv）; 
return $ encrypted_string; 
} 
function decrypt（$ encrypted_string，$ encryption_key）
 {
 $ iv_size = mcrypt_get_iv_size（MCRYPT_BLOWFISH，MCRYPT_MODE_ECB）; 
 $ iv = mcrypt_create_iv（$ iv_size，MCRYPT_RAND  ）; 
 $ decrypted_string = mcrypt_decrypt（MCRYPT_BLOWFISH，$ encryption_key，$ encrypted_string，MCRYPT_MODE_ECB，$ iv）; 
return $ decrypted_string; 
} 
  code>  pre> 
  div>

答

You're calling utf8_encode in your encryption function, but not calling utf8_decode when you decrypt, so your functions as they stand don't complement each other.

I'd recommend removing the call to utf8_encode entirely. mcrypt_encrypt doesn't care what encoding your string uses, so whatever you pass in will be what you get back out. Your script works fine for me if I remove it:

$encrypted_string = mcrypt_encrypt(MCRYPT_BLOWFISH, $encryption_key, $pure_string, MCRYPT_MODE_ECB, $iv);

I'd also suggest reading this: https://paragonie.com/blog/2015/05/if-you-re-typing-word-mcrypt-into-your-code-you-re-doing-it-wrong

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