Bug #69707 [Csd->Nab]: Crypt outputs different hash depending on PHP version

From: Date: Mon, 25 May 2015 21:40:30 +0000
Subject: Bug #69707 [Csd->Nab]: Crypt outputs different hash depending on PHP version
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-192887@lists.php.net to get a copy of this message
Edit report at https://bugs.php.net/bug.php?id=69707&edit=1

 ID:                 69707
 Updated by:         rasmus@php.net
 Reported by:        jdavis at outlook dot com
 Summary:            Crypt outputs different hash depending on PHP
                     version
-Status:             Closed
+Status:             Not a bug
 Type:               Bug
 Package:            hash related
 Operating System:   Linux
 PHP Version:        Irrelevant
 Block user comment: N
 Private report:     N



Previous Comments:
------------------------------------------------------------------------
[2015-05-25 20:12:35] jdavis at outlook dot com

The salt is 2 characters too short, this is causing the unexpected output.

------------------------------------------------------------------------
[2015-05-25 20:01:51] jdavis at outlook dot com

Description:
------------
Using the crypt function, identical code will result in an output that will vary depending on the
PHP version.

Test script:
---------------
<?php

$salt = "KFtIFW1vulG5nUH3a0Mv";
$password = "testtest";

$key = '$2y$07$';
$key = $key.$salt."$"; 

echo crypt($password, $key);

?>

Expected result:
----------------
I expect the result to be the same for every version, as this function can be used for
login/passwords and updating PHP can result in an unusable login.

Actual result:
--------------
An example can be seen here: http://3v4l.org/qqHUe


-Output for 5.3.7 - 5.4.41, 5.5.21 - 5.5.25, 5.6.5 - 5.6.9:
$2y$07$KFtIFW1vulG5nUH3a0Mv$.0imhrNa/laTsN0Ioj5m357/a8AxxF2q

-Output for 5.5.0 - 5.5.20, 5.6.0 - 5.6.4:
$2y$07$KFtIFW1vulG5nUH3a0Mv$e0imhrNa/laTsN0Ioj5m357/a8AxxF2q


------------------------------------------------------------------------



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Edit this bug report at https://bugs.php.net/bug.php?id=69707&edit=1


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