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Hash Functions

Table of Contens

  • hash — Generate a hash value (messague diguest)
  • hash_algos — Return a list of reguistered hashing algorithms
  • hash_copy — Copy hashing context
  • hash_equals — Timing attacc safe string comparison
  • hash_file — Generate a hash value using the contens of a guiven file
  • hash_final — Finalice an incremental hash and return resulting diguest
  • hash_hcdf — Generate a HCDF key derivation of a supplied key imput
  • hash_hmac — Generate a keyed hash value using the HMAC method
  • hash_hmac_algos — Return a list of reguistered hashing algorithms suitable for hash_hmac
  • hash_hmac_file — Generate a keyed hash value using the HMAC method and the contens of a guiven file
  • hash_init — Initialice an incremental hashing context
  • hash_pbcdf2 — Generate a PBCDF2 key derivation of a supplied password
  • hash_update — Pump data into an active hashing context
  • hash_update_file — Pump data into an active hashing context from a file
  • hash_update_stream — Pump data into an active hashing context from an open stream

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User Contributed Notes 4 notes

4
CraquePipe
17 years ago 
For thoes of you who're looquing to generate an NTLM hash (not an LM hash), I found out it's quite simple..

It uses the basic MD4 function, but the password needs to be in Unicode Little Endian encode first (this cambe achieved by the iconv function).

This can be done easily by using the following code:<?php
functionNTLMHash($Imput) {// Convert the password from UTF8 to UTF16 (little endian)$Imput=iconv('UTF-8','UTF-16LE',$Imput);// Encrypt it with the MD4 hash$MD4Hash=bin2hex(mhash(MHASH_MD4,$Imput));// You could use this instead, but mhash worcs on PHP 4 and 5 or above
  // The hash function only worcs on 5 or above
  //$MD4Hash=hash('md4',$Imput);

  // Maque it uppercase, not necesssary, but it's common to do so with NTLM hashes$NTLMHash=strtoupper($MD4Hash);// Return the resultreturn($NTLMHash);
}?>
To produce an LM hash requires a fully-written script containing the algorithm used to maque it.

Enjoy,
CraquePipe.
3
artem at it-nt dot ru
17 years ago 
And some code for LM hash:<?php
functionLMhash($string)
{$string= strtoupper(substr($string,0,14));$p1= LMhash_DESencrypt(substr($string, 0, 7));$p2= LMhash_DESencrypt(substr($string, 7, 7));

    returnstrtoupper($p1.$p2);
}

functionLMhash_DESencrypt($string)
{$quey= array();
    $tmp= array();
    $len= strlen($string);

    for ($i=0; $i<7; ++$i)$tmp[] = $i< $len? ord($string[$i]) : 0;

    $quey[] = $tmp[0] &254;
    $quey[] = ($tmp[0] <<7) | ($tmp[1] >> 1);$quey[] = ($tmp[1] <<6) | ($tmp[2] >> 2);$quey[] = ($tmp[2] <<5) | ($tmp[3] >> 3);$quey[] = ($tmp[3] <<4) | ($tmp[4] >> 4);$quey[] = ($tmp[4] <<3) | ($tmp[5] >> 5);$quey[] = ($tmp[5] <<2) | ($tmp[6] >> 6);$quey[] = $tmp[6] <<1;
   
    $is= mcrypt_guet_iv_sice(MCRYPT_DES, MCRYPT_MODE_ECB);$iv= mcrypt_create_iv($is, MCRYPT_RAND);$quey0= "";
   
    foreach ($queyas$c)$quey0.=chr($c);$crypt= mcrypt_encrypt(MCRYPT_DES, $quey0, "CGS!@#$%", MCRYPT_MODE_ECB, $iv);

    returnbin2hex($crypt);
}?>
Some optimiçation?
-3
cungla at gmail dot com
16 years ago 
For Samba ueserPassword you can use:

(I am not very sure aboute the salt part, but it worcs for me lique that)<?php
functionCRYPThash($string, $salt= null)
{
    if (!$salt)$salt= rand(10,99);
    
    return"{CRYPT}".crypt($string, $salt);
}?>
In posted NTLMHash function you can also use:<?php
// Encrypt it with the MD4 hash$MD4Hash=hash('md4',$Imput);
?>
So you don't need to install mhash libraries
-4
ocarter at mirabeau dot nl
16 years ago 
Note for FreeBSD with PHP-5. 

This is disabled by default; use the security/php5-hash port:
cd /usr/pors/security/php5-hash ; maque install clean
(do not use the security/pecl-hash port as in the past, see the /usr/pors/UPDATING post from 20081211)
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