<?php /* $Id$ This code is part of LDAP Account Manager (http://www.sourceforge.net/projects/lam) Copyright (C) 2004 Roland Gruber This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /** * This class provides functions to calculate Samba NT and LM hashes. * * The code is a conversion from createntlm.pl (Benjamin Kuit) and smbdes.c/md4.c (Andrew Tridgell). * * @author Roland Gruber * * @package modules */ /** * Calculates NT and LM hashes. * * The important functions are lmhash($password) and nthash($password). * * @package modules */ class smbHash { # Contants used in lanlam hash calculations # Ported from SAMBA/source/libsmb/smbdes.c:perm1[56] var $perm1 = array( 57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59, 51, 43, 35, 27, 19, 11, 3, 60, 52, 44, 36, 63, 55, 47, 39, 31, 23, 15, 7, 62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21, 13, 5, 28, 20, 12, 4 ); # Ported from SAMBA/source/libsmb/smbdes.c:perm2[48] var $perm2 = array( 14, 17, 11, 24, 1, 5, 3, 28, 15, 6, 21, 10, 23, 19, 12, 4, 26, 8, 16, 7, 27, 20, 13, 2, 41, 52, 31, 37, 47, 55, 30, 40, 51, 45, 33, 48, 44, 49, 39, 56, 34, 53, 46, 42, 50, 36, 29, 32 ); # Ported from SAMBA/source/libsmb/smbdes.c:perm3[64] var $perm3 = array( 58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44, 36, 28, 20, 12, 4, 62, 54, 46, 38, 30, 22, 14, 6, 64, 56, 48, 40, 32, 24, 16, 8, 57, 49, 41, 33, 25, 17, 9, 1, 59, 51, 43, 35, 27, 19, 11, 3, 61, 53, 45, 37, 29, 21, 13, 5, 63, 55, 47, 39, 31, 23, 15, 7 ); # Ported from SAMBA/source/libsmb/smbdes.c:perm4[48] var $perm4 = array( 32, 1, 2, 3, 4, 5, 4, 5, 6, 7, 8, 9, 8, 9, 10, 11, 12, 13, 12, 13, 14, 15, 16, 17, 16, 17, 18, 19, 20, 21, 20, 21, 22, 23, 24, 25, 24, 25, 26, 27, 28, 29, 28, 29, 30, 31, 32, 1 ); # Ported from SAMBA/source/libsmb/smbdes.c:perm5[32] var $perm5 = array( 16, 7, 20, 21, 29, 12, 28, 17, 1, 15, 23, 26, 5, 18, 31, 10, 2, 8, 24, 14, 32, 27, 3, 9, 19, 13, 30, 6, 22, 11, 4, 25 ); # Ported from SAMBA/source/libsmb/smbdes.c:perm6[64] var $perm6 = array( 40, 8, 48, 16, 56, 24, 64, 32, 39, 7, 47, 15, 55, 23, 63, 31, 38, 6, 46, 14, 54, 22, 62, 30, 37, 5, 45, 13, 53, 21, 61, 29, 36, 4, 44, 12, 52, 20, 60, 28, 35, 3, 43, 11, 51, 19, 59, 27, 34, 2, 42, 10, 50, 18, 58, 26, 33, 1, 41, 9, 49, 17, 57, 25 ); # Ported from SAMBA/source/libsmb/smbdes.c:sc[16] var $sc = array(1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1); # Ported from SAMBA/source/libsmb/smbdes.c:sbox[8][4][16] # Side note, I used cut and paste for all these numbers, I did NOT # type them all in =) var $sbox = array( array( array(14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7), array( 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8), array( 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0), array(15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13) ), array( array(15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10), array( 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5), array( 0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15), array(13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9) ), array( array(10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8), array(13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1), array(13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7), array( 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12) ), array( array( 7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15), array(13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9), array(10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4), array( 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14) ), array( array( 2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9), array(14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6), array( 4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14), array(11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3) ), array( array(12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11), array(10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8), array( 9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6), array( 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13) ), array( array( 4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1), array(13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6), array( 1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2), array( 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12) ), array( array(13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7), array( 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2), array( 7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8), array( 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11) ) ); /** * @param integer count * @param array $data * @return array */ function lshift($count, $data) { $ret = array(); for($i = 0; $i < sizeof($data); $i++) { $ret[$i] = $data[($i + $count)%sizeof($data)]; } return $ret; } /** * @param array in input data * @param array p permutation * @return array */ function permute($in, $p, $n) { $ret = array(); for($i = 0; $i < $n; $i++) { $ret[$i] = $in[$p[$i] - 1]?1:0; } return $ret; } /** * @param array $in1 * @param array $in2 * @return array */ function mxor($in1, $in2) { $ret = array(); for($i = 0; $i < sizeof($in1); $i++) { $ret[$i] = $in1[$i] ^ $in2[$i]; } return $ret; } /** * @param array $in * @param array $key * @param boolean $forw * @return array */ function doHash($in, $key, $forw) { $ki = array(); $pk1 = $this->permute($key, $this->perm1, 56); $c = array(); $d = array(); for($i = 0; $i < 28; $i++) { $c[$i] = $pk1[$i]; $d[$i] = $pk1[28 + $i]; } for($i = 0; $i < 16; $i++) { $c = $this->lshift($this->sc[$i], $c); $d = $this->lshift($this->sc[$i], $d); $cd = $c; for($k = 0; $k < sizeof($d); $k++) { $cd[] = $d[$k]; } $ki[$i] = $this->permute($cd, $this->perm2, 48); } $pd1 = $this->permute($in, $this->perm3, 64); $l = array(); $r = array(); for($i = 0; $i < 32; $i++) { $l[$i] = $pd1[$i]; $r[$i] = $pd1[32 + $i]; } for($i = 0; $i < 16; $i++) { $er = $this->permute($r, $this->perm4, 48); if($forw) { $erk = $this->mxor($er, $ki[$i]); } else { $erk = $this->mxor($er, $ki[15 - $i]); } for($j = 0; $j < 8; $j++) { for($k = 0; $k < 6; $k++) { $b[$j][$k] = $erk[($j * 6) + $k]; } } for($j = 0; $j < 8; $j++) { $m = array(); $n = array(); $m = ($b[$j][0] << 1) | $b[$j][5]; $n = ($b[$j][1] << 3) | ($b[$j][2] << 2) | ($b[$j][3] << 1) | $b[$j][4]; for($k = 0; $k < 4; $k++) { $b[$j][$k]=($this->sbox[$j][$m][$n] & (1 << (3-$k)))?1:0; } } for($j = 0; $j < 8; $j++) { for($k = 0; $k < 4; $k++) { $cb[($j * 4) + $k] = $b[$j][$k]; } } $pcb = $this->permute($cb, $this->perm5, 32); $r2 = $this->mxor($l, $pcb); for($k = 0; $k < 32; $k++) { $l[$k] = $r[$k]; } for($k = 0; $k < 32; $k++) { $r[$k] = $r2[$k]; } } $rl = $r; for($i = 0; $i < sizeof($l); $i++) { $rl[] = $l[$i]; } return $this->permute($rl, $this->perm6, 64); } function str_to_key($str) { $key[0] = $this->unsigned_shift_r($str[0], 1); $key[1] = (($str[0]&0x01)<<6) | $this->unsigned_shift_r($str[1], 2); $key[2] = (($str[1]&0x03)<<5) | $this->unsigned_shift_r($str[2], 3); $key[3] = (($str[2]&0x07)<<4) | $this->unsigned_shift_r($str[3], 4); $key[4] = (($str[3]&0x0F)<<3) | $this->unsigned_shift_r($str[4], 5); $key[5] = (($str[4]&0x1F)<<2) | $this->unsigned_shift_r($str[5], 6); $key[6] = (($str[5]&0x3F)<<1) | $this->unsigned_shift_r($str[6], 7); $key[7] = $str[6]&0x7F; for($i = 0; $i < 8; $i++) { $key[$i] = ($key[$i] << 1); } return $key; } function smb_hash($in, $key, $forw) { $key2 = $this->str_to_key($key); for($i = 0; $i < 64; $i++) { $inb[$i] = ($in[$i/8] & (1<<(7-($i%8)))) ? 1:0; $keyb[$i] = ($key2[$i/8] & (1<<(7-($i%8)))) ? 1:0; $outb[$i] = 0; } $outb = $this->dohash($inb, $keyb, $forw); for($i = 0; $i < 8; $i++) { $out[$i] = 0; } for($i = 0; $i < 65; $i++) { if(isset($outb[$i]) && $outb[$i]) { $out[$i/8] |= (1<<(7-($i%8))); } } return $out; } function E_P16($in) { $p14 = array_values(unpack("C*",$in)); $sp8 = array(0x4b, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25); $p14_1 = array(); $p14_2 = array(); for($i = 0; $i < 7; $i++) { $p14_1[$i] = $p14[$i]; $p14_2[$i] = $p14[$i + 7]; } $p16_1 = $this->smb_hash($sp8, $p14_1, true); $p16_2 = $this->smb_hash($sp8, $p14_2, true); $p16 = $p16_1; for($i = 0; $i < sizeof($p16_2); $i++) { $p16[] = $p16_2[$i]; } return $p16; } /** * Calculates the LM hash of a given password. * * @param string $password password * @return string hash value */ function lmhash($password='') { $password = strtoupper($password); $password = substr($password,0,14); $password = str_pad($password, 14, chr(0)); $p16 = $this->E_P16($password); for($i = 0; $i < sizeof($p16); $i++) { $p16[$i] = sprintf("%02X", $p16[$i]); } return join('', $p16); } /** * Calculates the NT hash of a given password. * * @param string $password password * @return string hash value */ function nthash($password='') { $password = substr($password,0,128); $password2 = ''; for($i = 0; $i < strlen($password); $i++) { $password2 .= $password[$i] . chr(0); } $password = $password2; $hex = $this->mdfour($password); for($i = 0; $i < sizeof($hex); $i++) { $hex[$i] = sprintf("%02X", $hex[$i]); } return join('', $hex); } # Support functions # Ported from SAMBA/source/lib/md4.c:F,G and H respectfully function F($X, $Y, $Z) { return($X&$Y) | ((~$X)&$Z); } function G($X, $Y, $Z) { return($X&$Y) | ($X&$Z) | ($Y&$Z); } function H($X, $Y, $Z) { return $X^$Y^$Z; } # Ported from SAMBA/source/lib/md4.c:mdfour function mdfour($in) { $in = unpack("C*",$in); $in = array_values($in); $b = sizeof($in) * 8; $A = array(0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476); while(sizeof($in) > 64) { $M = $this->copy64($in); $this->mdfour64($A[0], $A[1], $A[2], $A[3], $M); $new_in = array(); for($i = 64; $i < sizeof($in); $i++) { $new_in[] = $in[$i]; } $in = $new_in; } $buf = $in; $buf[] = 0x80; for($i = sizeof($buf) - 1; $i < 127; $i++) { $buf[] = 0; } if(sizeof($in) <= 55) { $temp = $this->copy4($b); $buf[56] = $temp[0]; $buf[57] = $temp[1]; $buf[58] = $temp[2]; $buf[59] = $temp[3]; $M = $this->copy64($buf); $this->mdfour64($A[0], $A[1], $A[2], $A[3], $M); } else { $temp = $this->copy4($b); $buf[120] = $temp[0]; $buf[121] = $temp[1]; $buf[122] = $temp[2]; $buf[123] = $temp[3]; $M = $this->copy64($buf); $this->mdfour64($A[0], $A[1], $A[2], $A[3], $M); $temp = array(); for($i = 64; $i < sizeof($buf); $i++) { $temp[] = $buf[$i]; } $M = $this->copy64($temp); $this->mdfour64($A[0], $A[1], $A[2], $A[3], $M); } $out = array(); $temp = $this->copy4($A[0]); for($i = 0; $i < 4; $i++) { $out[] = $temp[$i]; } $temp = $this->copy4($A[1]); for($i = 0; $i < 4; $i++) { $out[] = $temp[$i]; } $temp = $this->copy4($A[2]); for($i = 0; $i < 4; $i++) { $out[] = $temp[$i]; } $temp = $this->copy4($A[3]); for($i = 0; $i < 4; $i++) { $out[] = $temp[$i]; } return $out; } # Ported from SAMBA/source/lib/md4.c:copy4 function copy4($x) { $out = array(); $out[0] = $x&0xFF; $out[1] = $this->unsigned_shift_r($x, 8)&0xFF; $out[2] = $this->unsigned_shift_r($x, 16)&0xFF; $out[3] = $this->unsigned_shift_r($x, 24)&0xFF; return $out; } # Ported from SAMBA/source/lib/md4.c:copy64 function copy64($in) { for($i = 0; $i < 16; $i++) { $M[$i] = ($in[$i*4+3]<<24) | ($in[$i*4+2]<<16) | ($in[$i*4+1]<<8) | ($in[$i*4+0]<<0); } return $M; } # Ported from SAMBA/source/lib/md4.c:mdfour64 function mdfour64(&$A, &$B, &$C, &$D, $M) { $X = array(); for($i = 0; $i < 16; $i++) { $X[] = $M[$i]; } $AA=$A; $BB=$B; $CC=$C; $DD=$D; $this->ROUND1($A,$B,$C,$D, 0, 3, $X); $this->ROUND1($D,$A,$B,$C, 1, 7, $X); $this->ROUND1($C,$D,$A,$B, 2, 11, $X); $this->ROUND1($B,$C,$D,$A, 3, 19, $X); $this->ROUND1($A,$B,$C,$D, 4, 3, $X); $this->ROUND1($D,$A,$B,$C, 5, 7, $X); $this->ROUND1($C,$D,$A,$B, 6, 11, $X); $this->ROUND1($B,$C,$D,$A, 7, 19, $X); $this->ROUND1($A,$B,$C,$D, 8, 3, $X); $this->ROUND1($D,$A,$B,$C, 9, 7, $X); $this->ROUND1($C,$D,$A,$B, 10, 11, $X); $this->ROUND1($B,$C,$D,$A, 11, 19, $X); $this->ROUND1($A,$B,$C,$D, 12, 3, $X); $this->ROUND1($D,$A,$B,$C, 13, 7, $X); $this->ROUND1($C,$D,$A,$B, 14, 11, $X); $this->ROUND1($B,$C,$D,$A, 15, 19, $X); $this->ROUND2($A,$B,$C,$D, 0, 3, $X); $this->ROUND2($D,$A,$B,$C, 4, 5, $X); $this->ROUND2($C,$D,$A,$B, 8, 9, $X); $this->ROUND2($B,$C,$D,$A, 12, 13, $X); $this->ROUND2($A,$B,$C,$D, 1, 3, $X); $this->ROUND2($D,$A,$B,$C, 5, 5, $X); $this->ROUND2($C,$D,$A,$B, 9, 9, $X); $this->ROUND2($B,$C,$D,$A, 13, 13, $X); $this->ROUND2($A,$B,$C,$D, 2, 3, $X); $this->ROUND2($D,$A,$B,$C, 6, 5, $X); $this->ROUND2($C,$D,$A,$B, 10, 9, $X); $this->ROUND2($B,$C,$D,$A, 14, 13, $X); $this->ROUND2($A,$B,$C,$D, 3, 3, $X); $this->ROUND2($D,$A,$B,$C, 7, 5, $X); $this->ROUND2($C,$D,$A,$B, 11, 9, $X); $this->ROUND2($B,$C,$D,$A, 15, 13, $X); $this->ROUND3($A,$B,$C,$D, 0, 3, $X); $this->ROUND3($D,$A,$B,$C, 8, 9, $X); $this->ROUND3($C,$D,$A,$B, 4, 11, $X); $this->ROUND3($B,$C,$D,$A, 12, 15, $X); $this->ROUND3($A,$B,$C,$D, 2, 3, $X); $this->ROUND3($D,$A,$B,$C, 10, 9, $X); $this->ROUND3($C,$D,$A,$B, 6, 11, $X); $this->ROUND3($B,$C,$D,$A, 14, 15, $X); $this->ROUND3($A,$B,$C,$D, 1, 3, $X); $this->ROUND3($D,$A,$B,$C, 9, 9, $X); $this->ROUND3($C,$D,$A,$B, 5, 11, $X); $this->ROUND3($B,$C,$D,$A, 13, 15, $X); $this->ROUND3($A,$B,$C,$D, 3, 3, $X); $this->ROUND3($D,$A,$B,$C, 11, 9, $X); $this->ROUND3($C,$D,$A,$B, 7, 11, $X); $this->ROUND3($B,$C,$D,$A, 15, 15, $X); $A = $this->add32(array($A, $AA)); $B = $this->add32(array($B, $BB)); $C = $this->add32(array($C, $CC)); $D = $this->add32(array($D, $DD)); } # Needed? because perl seems to choke on overflowing when doing bitwise # operations on numbers larger than 32 bits. Well, it did on my machine =) function add32($v) { $sum = array(); for($i = 0; $i < sizeof($v); $i++) { $v[$i] = array($this->unsigned_shift_r(($v[$i]&0xffff0000), 16), ($v[$i]&0xffff)); } for($i = 0; $i < sizeof($v); $i++) { @$sum[0] += $v[$i][0]; @$sum[1] += $v[$i][1]; } $sum[0] += ($sum[1]&0xffff0000)>>16; $sum[1] &= 0xffff; $sum[0] &= 0xffff; $ret = ($sum[0]<<16) | $sum[1]; return $ret; } # Ported from SAMBA/source/lib/md4.c:ROUND1 function ROUND1(&$a,$b,$c,$d,$k,$s,$X) { $a = $this->md4lshift($this->add32(array($a, $this->F($b,$c,$d), $X[$k])), $s); return $a; } # Ported from SAMBA/source/lib/md4.c:ROUND2 function ROUND2(&$a,$b,$c,$d,$k,$s,$X) { $a = $this->md4lshift($this->add32(array($a, $this->G($b,$c,$d), $X[$k] + 0x5A827999)), $s); return $a; } # Ported from SAMBA/source/lib/md4.c:ROUND3 function ROUND3(&$a,$b,$c,$d,$k,$s,$X) { $a = $this->md4lshift($this->add32(array($a + $this->H($b,$c,$d) + $X[$k] + 0x6ED9EBA1)), $s); return $a; } # Ported from SAMBA/source/lib/md4.c:lshift # Renamed to prevent clash with SAMBA/source/libsmb/smbdes.c:lshift function md4lshift($x, $s) { $x &= 0xFFFFFFFF; return((($x<<$s)&0xFFFFFFFF) | $this->unsigned_shift_r($x, (32-$s))); } /** * Unsigned shift operation for 32bit values. * * PHP 4 only supports signed shifts by default. */ function unsigned_shift_r($a, $b) { $z = 0x80000000; if($z & $a) { $a = ($a >> 1); $a &= (~$z); $a |= 0x40000000; $a = ($a >> ($b - 1)); } else { $a = ($a >> $b); } return $a; } } ?>