[PHP-DEV] PHP 4.0 Bug #8040 Updated: MCRYPT_MODE_ does not seem to exist From: derick <email protected>
Date: 12/15/00

ID: 8040
Updated by: derick
Reported By: barton <email protected>
Old-Status: Assigned
Status: Closed
Bug Type: mcrypt related
Assigned To: derick
Comments:

The following code snippet:

<?php
    echo MCRYPT_TWOFISH."<BR>\n";
    echo MCRYPT_MODE_CBC."<BR>\n";
?>

<?php
    define ("MODE1", MCRYPT_MODE_CBC);
    echo MODE1."<BR>\n";
?>

<?php
    define ("CIPHER", MCRYPT_TWOFISH);
    define ("MODE1", MCRYPT_MODE_CBC);
    define ("MODE2", MCRYPT_CBC);

    printf ("cipher=".CIPHER. " mode1=".MODE1. " mode2=". MODE2."<BR>\n");
?>

procudes this:

   twofish
   cbc
   cbc
   cipher=twofish mode1=cbc mode2=MCRYPT_CBC

Which is expected. From source code analyses it is not even possible that MCRYPT_TWOFISH is defined, but MCRYPT_MODE_CBC is not.

So closing

Previous Comments:
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[2000-11-30 06:34:30] derick <email protected>
The following is defined in the code (PHP wrapper):

#if HAVE_LIBMCRYPT24
    MCRYPT_ENTRY2_2_4(ARCFOUR_IV, "arcfour-iv");
    MCRYPT_ENTRY2_2_4(ARCFOUR, "arcfour");
    MCRYPT_ENTRY2_2_4(BLOWFISH, "blowfish");
...
    MCRYPT_ENTRY2_2_4(MODE_CBC, "cbc");
    MCRYPT_ENTRY2_2_4(MODE_CFB, "cfb");
    MCRYPT_ENTRY2_2_4(MODE_ECB, "ecb");
    MCRYPT_ENTRY2_2_4(MODE_NOFB, "nofb");
    MCRYPT_ENTRY2_2_4(MODE_OFB, "ofb");
    MCRYPT_ENTRY2_2_4(MODE_STREAM, "stream");
    REGISTER_INI_ENTRIES();
#endif

So if MCRYPT_BLOWFISH works, then MCRYPT_MODE_CBC should work too.
I'm going to check this out later.

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

[2000-11-29 19:40:19] barton <email protected>
I have mcrypt libmcrypt 2.4.7.
Following simple script:

define("CIPHER", MCRYPT_TWOFISH);
define("MODE1", MCRYPT_MODE_CBC);
define("MODE2", MCRYPT_CBC);

print("cipher=". CIPHER . " mode1=" . MODE1 . "mode2=" . MODE2 . "<br>n");

What prints is "cipher=twofish mode1=MCRYPT_MODE_CBC MODE2=MCRYPT_CBC"

The mcrypt.h file has #define MCRYPT_CBC "cbc"
so I don't understand?

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Full Bug description available at: http://bugs.php.net/?id=8040 

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