From:             gslin at pixnet dot tw
Operating system: FreeBSD 7.2-RELEASE i386
PHP version:      5.2.11
PHP Bug Type:     mcrypt related
Bug description:  Incorrect test vector CFB/OFB results for Blowfish encryption

Description:
------------
Incorrect results for CFB/OFB Blowfish test vectors
(http://www.schneier.com/code/vectors.txt).

Reproduce code:
---------------
<?php

$iv = pack('H*', 'FEDCBA9876543210');
printf("iv: %s\n", bin2hex($iv));
$k = pack('H*', '0123456789ABCDEFF0E1D2C3B4A59687');
printf("key: %s\n", bin2hex($k));
$data = pack('H*',
'37363534333231204E6F77206973207468652074696D6520666F722000');
printf("data: %s\n", bin2hex($data));
$cbc = mcrypt_cbc('blowfish', $k, $data, MCRYPT_ENCRYPT, $iv);
printf("cbc: %s\n", bin2hex($cbc));
$cfb = mcrypt_cfb('blowfish', $k, $data, MCRYPT_ENCRYPT, $iv);
printf("cfb: %s\n", bin2hex($cfb));
$ofb = mcrypt_cfb('blowfish', $k, $data, MCRYPT_ENCRYPT, $iv);
printf("ofb: %s\n", bin2hex($ofb));

Expected result:
----------------
iv: fedcba9876543210
key: 0123456789abcdeff0e1d2c3b4a59687
data: 37363534333231204e6f77206973207468652074696d6520666f722000
cbc: 6b77b4d63006dee605b156e27403979358deb9e7154616d959f1652bd5ff92cc
cfb: e73214a2822139caf26ecf6d2eb9e76e3da3de04d1517200519d57a6c3
ofb: e73214a2822139ca62b343cc5b65587310dd908d0c241b2263c2cf80da

Actual result:
--------------
iv: fedcba9876543210
key: 0123456789abcdeff0e1d2c3b4a59687
data: 37363534333231204e6f77206973207468652074696d6520666f722000
cbc: 6b77b4d63006dee605b156e27403979358deb9e7154616d959f1652bd5ff92cc
cfb: e7bb1fc3073eb8314b378689fab0b1160244415d4d017fce0d9b4cb2fa
ofb: e7bb1fc3073eb8314b378689fab0b1160244415d4d017fce0d9b4cb2fa

-- 
Edit bug report at http://bugs.php.net/?id=50082&edit=1
-- 
Try a snapshot (PHP 5.2):            http://bugs.php.net/fix.php?id=50082&r=trysnapshot52
Try a snapshot (PHP 5.3):            http://bugs.php.net/fix.php?id=50082&r=trysnapshot53
Try a snapshot (PHP 6.0):            http://bugs.php.net/fix.php?id=50082&r=trysnapshot60
Fixed in SVN:                        http://bugs.php.net/fix.php?id=50082&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=50082&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=50082&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=50082&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=50082&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=50082&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=50082&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=50082&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=50082&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=50082&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=50082&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=50082&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=50082&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=50082&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=50082&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=50082&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=50082&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=50082&r=mysqlcfg