From: lars at larswolter dot de
Operating system: Windows
PHP version: 5.0.0
PHP Bug Type: mcrypt related
Bug description: mdecrypt not working anymore
Description:
------------
Just changed from php4 to php5. Now mcrypt decryption does not work
anymore. The function returns the encrypted data instead of the
decrypted.
The testcode is the example from the mdecrypt_generic function
documentation.
using php.ini-recommended and only changed the following
display_errors = On
display_startup_errors = On
extensions_dir = ...
loaded extra modules:
gd2, mbstring, mcrypt, mysql, exif
Reproduce code:
---------------
<?php
$key = 'this is a very long key...';
$plain_text = 'very important data';
$td = mcrypt_module_open('des', '', 'ecb','');
$key = substr($key, 0, mcrypt_enc_get_key_size($td));
$iv_size = mcrypt_enc_get_iv_size($td);
$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
if (mcrypt_generic_init($td, $key, $iv) != -1) {
$c_t = mcrypt_generic($td, $plain_text);
mcrypt_generic_deinit($td);
mcrypt_generic_init($td, $key, $iv);
$p_t = mdecrypt_generic($td, $c_t);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
}
if (strncmp($p_t, $plain_text, strlen($plain_text)) == 0)
echo "ok";
else
echo "error";
?>
Expected result:
----------------
the result should be: ok
Actual result:
--------------
the result is: error
--
Edit bug report at http://bugs.php.net/?id=29172&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=29172&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=29172&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=29172&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=29172&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=29172&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=29172&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=29172&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=29172&r=support
Expected behavior: http://bugs.php.net/fix.php?id=29172&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=29172&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=29172&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=29172&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=29172&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=29172&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=29172&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=29172&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=29172&r=float
