Hash 函数

Table of Contents

  • hash_algos — 返回已注册的哈希算法列表
  • hash_copy — 拷贝哈希运算上下文
  • hash_equals — 可防止时序攻击的字符串比较
  • hash_file — 使用给定文件的内容生成哈希值
  • hash_final — 结束增量哈希,并且返回摘要结果
  • hash_hmac_file — 使用 HMAC 方法和给定文件的内容生成带密钥的哈希值
  • hash_hmac — 使用 HMAC 方法生成带有密钥的哈希值
  • hash_init — 初始化增量哈希运算上下文
  • hash_pbkdf2 — 生成所提供密码的 PBKDF2 密钥导出
  • hash_update_file — 从文件向活跃的哈希运算上下文中填充数据
  • hash_update_stream — 从打开的流向活跃的哈希运算上下文中填充数据
  • hash_update — 向活跃的哈希运算上下文中填充数据
  • hash — 生成哈希值 (消息摘要)
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User Contributed Notes 5 notes

up
3
CraquePipe
6 years ago
For thoes of you who're looking 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 canbe achieved by the iconv function).

This can be done easily by using the following code:

<?php
function NTLMHash($Input) {
 
// Convert the password from UTF8 to UTF16 (little endian)
 
$Input=iconv('UTF-8','UTF-16LE',$Input);

 
// Encrypt it with the MD4 hash
 
$MD4Hash=bin2hex(mhash(MHASH_MD4,$Input));

 
// You could use this instead, but mhash works on PHP 4 and 5 or above
  // The hash function only works on 5 or above
  //$MD4Hash=hash('md4',$Input);

  // Make it uppercase, not necessary, but it's common to do so with NTLM hashes
 
$NTLMHash=strtoupper($MD4Hash);

 
// Return the result
 
return($NTLMHash);
}
?>

To produce an LM hash requires a fully-written script containing the algorithm used to make it.

Enjoy,
CraquePipe.
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2
artem at it-nt dot ru
6 years ago
And some code for LM hash:

<?php
function LMhash($string)
{
   
$string = strtoupper(substr($string,0,14));

   
$p1 = LMhash_DESencrypt(substr($string, 0, 7));
   
$p2 = LMhash_DESencrypt(substr($string, 7, 7));

    return
strtoupper($p1.$p2);
}

function
LMhash_DESencrypt($string)
{
   
$key = array();
   
$tmp = array();
   
$len = strlen($string);

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

   
$key[] = $tmp[0] & 254;
   
$key[] = ($tmp[0] << 7) | ($tmp[1] >> 1);
   
$key[] = ($tmp[1] << 6) | ($tmp[2] >> 2);
   
$key[] = ($tmp[2] << 5) | ($tmp[3] >> 3);
   
$key[] = ($tmp[3] << 4) | ($tmp[4] >> 4);
   
$key[] = ($tmp[4] << 3) | ($tmp[5] >> 5);
   
$key[] = ($tmp[5] << 2) | ($tmp[6] >> 6);
   
$key[] = $tmp[6] << 1;
  
   
$is = mcrypt_get_iv_size(MCRYPT_DES, MCRYPT_MODE_ECB);
   
$iv = mcrypt_create_iv($is, MCRYPT_RAND);
   
$key0 = "";
  
    foreach (
$key as $k)
       
$key0 .= chr($k);
   
$crypt = mcrypt_encrypt(MCRYPT_DES, $key0, "KGS!@#$%", MCRYPT_MODE_ECB, $iv);

    return
bin2hex($crypt);
}
?>

Some optimization?
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1
kungla at gmail dot com
5 years ago
For Samba ueserPassword you can use:

(I am not very sure aboute the salt part, but it works for me like that)

<?php
function CRYPThash($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
$MD4Hash=hash('md4',$Input);
?>

So you don't need to install mhash libraries
up
-1
ocarter at mirabeau dot nl
4 years ago
Note for FreeBSD with PHP-5.

This is disabled by default; use the security/php5-hash port:
cd /usr/ports/security/php5-hash ; make install clean
(do not use the security/pecl-hash port as in the past, see the /usr/ports/UPDATING post from 20081211)
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-4
nb_removethis_ at wtal dot de
7 years ago
Some tests with mhash and hash revealed on my machine that hash needs more than twice as long to create a hash than mhash. The average of one million cylces of Haval128, Haval256, Gost, CRC32, MD5, SHA1 and SHA256 was 450ms for mhash and 1150ms for hash.
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