Введение

These functions are intended to work with mhash. Mhash can be used to create checksums, message digests, message authentication codes, and more.

This is an interface to the mhash library. mhash supports a wide variety of hash algorithms such as MD5, SHA1, GOST, and many others. For a complete list of supported hashes, refer to the documentation of mhash. The general rule is that you can access the hash algorithm from PHP with MHASH_HASHNAME. For example, to access TIGER you use the PHP constant MHASH_TIGER.

Замечание: This extension has been moved to the PECL repository and is no longer bundled with PHP as of PHP 5.3.0.

Требования

To use it, download the mhash distribution from its web site and follow the included installation instructions.

Установка

You need to compile PHP with the --with-mhash[=DIR] parameter to enable this extension. DIR is the mhash install directory.

Настройка во время выполнения

Данное расширение не определяет никакие директивы конфигурации в php.ini.

Типы ресурсов

Данное расширение не определяет никакие типы ресурсов.

Предопределенные константы

Перечисленные ниже константы определены данным расширением и могут быть доступны только в том случае, если PHP был собран с поддержкой этого расширения или же в том случае, если данное расширение подгружается во время выполнения.

Here is a list of hashes which are currently supported by mhash. If a hash is not listed here, but is listed by mhash as supported, you can safely assume that this documentation is outdated.

MHASH_ADLER32
MHASH_CRC32
MHASH_CRC32B
MHASH_GOST
MHASH_HAVAL128
MHASH_HAVAL160
MHASH_HAVAL192
MHASH_HAVAL256
MHASH_MD4
MHASH_MD5
MHASH_RIPEMD160
MHASH_SHA1
MHASH_SHA256
MHASH_TIGER
MHASH_TIGER128
MHASH_TIGER160

Примеры

Пример 1. Compute the MD5 digest and hmac and print it out as hex

<?php $input = "what do ya want for nothing?"; $hash = mhash(MHASH_MD5, $input); echo "The hash is " . bin2hex($hash) . "<br />\n"; $hash = mhash(MHASH_MD5, $input, "Jefe"); echo "The hmac is " . bin2hex($hash) . "<br />\n"; ?>
This will produce:
The hash is d03cb659cbf9192dcd066272249f8412 The hmac is 750c783e6ab0b503eaa86e310a5db738

add a note User Contributed Notes
Mhash Functions

ludicruz at yahoo dot com
07-Jul-2007 01:41


to robert at mediamonks dot com



This will work better, in your function you can just use the constant function to pull in the actual value of MHASH_SHA512 or whatever.



function getHashNotWorking($argStrHashMethod, $argStrString)

{

$strHashMethod = 'MHASH_' . $argStrHashMethod;

$strHashedString = bin2hex(mhash(constant($strHashMethod), $argStrString));



return $strHashedString;

}



now:



echo getHashNotWorking('SHA512', 'some string');



works how you want it.

robert at mediamonks dot com
06-Dec-2006 12:44


function getHashNotWorking($argStrHashMethod, $argStrString)

{

$strHashMethod = 'MHASH_' . $argStrHashMethod;

$strHashedString = bin2hex(mhash($strHashMethod, $argStrString));



return $strHashedString;

}



echo getHashNotWorking('SHA512', 'some string');



This will return an error about the mhash function expecting a long type instead of a string.



=============================



for ($intI = 0; $intI <= mhash_count(); $intI++)

{

$arrHashTypes[mhash_get_hash_name($intI)] = $intI;

}



function getHashWorking($argStrType, $argStrString)

{

global $arrHashTypes;

$strHashedString = bin2hex(mhash($arrHashTypes[$argStrType], $argStrString));



return $strHashedString;

}



echo getHashWorking('SHA512', 'some string');



This will return the hash with the desired hash method

brentdothansenatgmaildotcom
11-Aug-2005 04:43


Since it seems that the tiger hash bug has been labeled "bogus" here is a fix to give a correct result.  I'm not a binary expert so if you come up with a better fix please let us know. Just do your MHASH_TIGER as normal then send the unaltered binary into tigerfix and you get a proper HEX return.



function tigerfix ($binary_hash) {

     $my_split = str_split($binary_hash,8);

     $my_tiger ="";

     foreach($my_split as $key => $value) {

        $my_split[$key] = strrev($value);

        $my_tiger .= $my_split[$key];

     }

    $my_tiger_hex = bin2hex($my_tiger);

    return $my_tiger_hex;

}

m1tk4 at hotmail dot com
21-Jun-2004 10:43


To enable mhash on RHEL/Fedora Core/other RPM-based Linuxes without rebuilding PHP, get the php-mhash and mhash RPMs at http://phprpms.sourceforge.net/mhash

31-Jul-2001 07:13


MHASH_HAVAL256 , MHASH_HAVAL192, etc...

refers to the HAVAL hash with 3 rounds.



To use HAVAL with 4 or 5 rounds, you have to

recompile the mhash library and either add

new hash names, or just change in mhash.c 

the definitions of MHASH_HAVAL256,...

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