reactos/dll/advapi32/crypt/crypt_lmhash.c

   1 /*
   2  *  Copyright 2004 Hans Leidekker
   3  *
   4  *  Based on LMHash.c from libcifs
   5  *
   6  *  Copyright (C) 2004 by Christopher R. Hertel
   7  *
   8  *  This library is free software; you can redistribute it and/or
   9  *  modify it under the terms of the GNU Lesser General Public
  10  *  License as published by the Free Software Foundation; either
  11  *  version 2.1 of the License, or (at your option) any later version.
  12  *
  13  *  This library is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  *  Lesser General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU Lesser General Public
  19  *  License along with this library; if not, write to the Free Software
  20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include <advapi32.h>
  24 #include "crypt.h"
  25
  26
  27 static const unsigned char CRYPT_LMhash_Magic[8] =
  28     { 'K', 'G', 'S', '!', '@', '#', '$', '%' };
  29
  30 static void CRYPT_LMhash(LPSTR dst, LPCSTR pwd, const int len)
  31 {
  32     int i, max = 14;
  33     CHAR tmp_pwd[14] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
  34
  35     max = len > max ? max : len;
  36
  37     for (i = 0; i < max; i++)
  38         tmp_pwd[i] = pwd[i];
  39
  40     CRYPT_DEShash((PUCHAR)dst, (PUCHAR)tmp_pwd, CRYPT_LMhash_Magic);
  41     CRYPT_DEShash((PUCHAR)&dst[8], (PUCHAR)&tmp_pwd[7], CRYPT_LMhash_Magic);
  42 }
  43
  44 NTSTATUS WINAPI SystemFunction006(LPCSTR password, LPSTR hash)
  45 {
  46     CRYPT_LMhash(hash, password, strlen(password));
  47
  48     return STATUS_SUCCESS;
  49 }