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55f400bd84
This is merely updating the Copyright statements from 1997 to 1998.
It's a once a year thing :-).
NO OTHER CHANGES WERE MADE.
Jeremy.
(This used to be commit b9c1697723)
136 lines
3.1 KiB
C
136 lines
3.1 KiB
C
/*
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Unix SMB/Netbios implementation.
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Version 1.9.
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SMB parameters and setup
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Copyright (C) Andrew Tridgell 1992-1998
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Modified by Jeremy Allison 1995.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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extern int DEBUGLEVEL;
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#include "byteorder.h"
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/*
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This implements the X/Open SMB password encryption
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It takes a password, a 8 byte "crypt key" and puts 24 bytes of
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encrypted password into p24 */
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void SMBencrypt(uchar *passwd, uchar *c8, uchar *p24)
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{
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uchar p14[15], p21[21];
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memset(p21,'\0',21);
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memset(p14,'\0',14);
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StrnCpy((char *)p14,(char *)passwd,14);
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strupper((char *)p14);
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E_P16(p14, p21);
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E_P24(p21, c8, p24);
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}
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/* Routines for Windows NT MD4 Hash functions. */
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static int _my_wcslen(int16 *str)
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{
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int len = 0;
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while(*str++ != 0)
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len++;
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return len;
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}
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/*
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* Convert a string into an NT UNICODE string.
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* Note that regardless of processor type
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* this must be in intel (little-endian)
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* format.
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*/
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static int _my_mbstowcs(int16 *dst, uchar *src, int len)
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{
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int i;
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int16 val;
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for(i = 0; i < len; i++) {
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val = *src;
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SSVAL(dst,0,val);
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dst++;
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src++;
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if(val == 0)
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break;
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}
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return i;
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}
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/*
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* Creates the MD4 Hash of the users password in NT UNICODE.
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*/
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void E_md4hash(uchar *passwd, uchar *p16)
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{
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int len;
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int16 wpwd[129];
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/* Password cannot be longer than 128 characters */
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len = strlen((char *)passwd);
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if(len > 128)
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len = 128;
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/* Password must be converted to NT unicode */
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_my_mbstowcs(wpwd, passwd, len);
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wpwd[len] = 0; /* Ensure string is null terminated */
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/* Calculate length in bytes */
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len = _my_wcslen(wpwd) * sizeof(int16);
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mdfour(p16, (unsigned char *)wpwd, len);
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}
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/* Does the NT MD4 hash then des encryption. */
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void SMBNTencrypt(uchar *passwd, uchar *c8, uchar *p24)
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{
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uchar p21[21];
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memset(p21,'\0',21);
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E_md4hash(passwd, p21);
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E_P24(p21, c8, p24);
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}
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/* Does both the NT and LM owfs of a user's password */
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void nt_lm_owf_gen(char *pwd, char *nt_p16, char *p16)
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{
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char passwd[130];
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StrnCpy(passwd, pwd, sizeof(passwd)-1);
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/* Calculate the MD4 hash (NT compatible) of the password */
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memset(nt_p16, '\0', 16);
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E_md4hash((uchar *)passwd, (uchar *)nt_p16);
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/* Mangle the passwords into Lanman format */
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passwd[14] = '\0';
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strupper(passwd);
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/* Calculate the SMB (lanman) hash functions of the password */
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memset(p16, '\0', 16);
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E_P16((uchar *) passwd, (uchar *)p16);
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/* clear out local copy of user's password (just being paranoid). */
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bzero(passwd, sizeof(passwd));
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}
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