From:             php-bug at ulterium dot com
Operating system: Win2000 OR Win2003
PHP version:      4.3.4
PHP Bug Type:     mcrypt related
Bug description:  PHP 4.3.4 Crashes with mcrypt_decrypt but mcrypt_encrypt works 
perfectly.

Description:
------------
Note: Also seen on Apache from a user's report on another web page. No
solutions found from searching web.


Using latest libmcrypt.dll and all permissions set correctly.

If the mcrypt_decrypt line is // out then it will complete but only do the
encrypt.

Any ideas?

Reproduce code:
---------------

   $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
   $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
   $key = "This is a key";
   $text = "This is a test string.";
   echo strlen($text) . "<br>";
   echo $text."<br>";

   $crypttext = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $text,
MCRYPT_MODE_ECB, $iv);
   echo strlen($crypttext) . "<br>";
   echo $crypttext."<br>";

   $decrypttext = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, $crypttext,
MCRYPT_MODE_ECB, $iv);
   echo strlen($decrypttext) . "<br>";
   echo $decrypttext."<br>";


Expected result:
----------------
Should DeCrypt String

Actual result:
--------------
PHP has encountered an Access Violation at 6C1994EB42


-- 
Edit bug report at http://bugs.php.net/?id=27118&edit=1
-- 
Try a CVS snapshot (php4):  http://bugs.php.net/fix.php?id=27118&r=trysnapshot4
Try a CVS snapshot (php5):  http://bugs.php.net/fix.php?id=27118&r=trysnapshot5
Fixed in CVS:               http://bugs.php.net/fix.php?id=27118&r=fixedcvs
Fixed in release:           http://bugs.php.net/fix.php?id=27118&r=alreadyfixed
Need backtrace:             http://bugs.php.net/fix.php?id=27118&r=needtrace
Need Reproduce Script:      http://bugs.php.net/fix.php?id=27118&r=needscript
Try newer version:          http://bugs.php.net/fix.php?id=27118&r=oldversion
Not developer issue:        http://bugs.php.net/fix.php?id=27118&r=support
Expected behavior:          http://bugs.php.net/fix.php?id=27118&r=notwrong
Not enough info:            http://bugs.php.net/fix.php?id=27118&r=notenoughinfo
Submitted twice:            http://bugs.php.net/fix.php?id=27118&r=submittedtwice
register_globals:           http://bugs.php.net/fix.php?id=27118&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=27118&r=php3
Daylight Savings:           http://bugs.php.net/fix.php?id=27118&r=dst
IIS Stability:              http://bugs.php.net/fix.php?id=27118&r=isapi
Install GNU Sed:            http://bugs.php.net/fix.php?id=27118&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=27118&r=float

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