2 Unix SMB/Netbios implementation.
4 SMB parameters and setup
5 Copyright (C) Andrew Tridgell 1992-1998
6 Modified by Jeremy Allison 1995.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program 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
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 extern int DEBUGLEVEL;
27 #include "byteorder.h"
30 This implements the X/Open SMB password encryption
31 It takes a password, a 8 byte "crypt key" and puts 24 bytes of
32 encrypted password into p24 */
33 void SMBencrypt(uchar *passwd, uchar *c8, uchar *p24)
35 uchar p14[15], p21[21];
39 StrnCpy((char *)p14,(char *)passwd,14);
41 strupper((char *)p14);
44 SMBOWFencrypt(p21, c8, p24);
47 DEBUG(100,("SMBencrypt: lm#, challenge, response\n"));
48 dump_data(100, p21, 16);
49 dump_data(100, c8, 8);
50 dump_data(100, p24, 24);
54 /* Routines for Windows NT MD4 Hash functions. */
55 static int _my_wcslen(int16 *str)
64 * Convert a string into an NT UNICODE string.
65 * Note that regardless of processor type
66 * this must be in intel (little-endian)
70 static int _my_mbstowcs(int16 *dst, uchar *src, int len)
75 for(i = 0; i < len; i++) {
87 * Creates the MD4 Hash of the users password in NT UNICODE.
90 void E_md4hash(uchar *passwd, uchar *p16)
95 /* Password cannot be longer than 128 characters */
96 len = strlen((char *)passwd);
99 /* Password must be converted to NT unicode */
100 _my_mbstowcs(wpwd, passwd, len);
101 wpwd[len] = 0; /* Ensure string is null terminated */
102 /* Calculate length in bytes */
103 len = _my_wcslen(wpwd) * sizeof(int16);
105 mdfour(p16, (unsigned char *)wpwd, len);
108 /* Does both the NT and LM owfs of a user's password */
109 void nt_lm_owf_gen(char *pwd, uchar nt_p16[16], uchar p16[16])
113 memset(passwd,'\0',130);
114 safe_strcpy( passwd, pwd, sizeof(passwd)-1);
116 /* Calculate the MD4 hash (NT compatible) of the password */
117 memset(nt_p16, '\0', 16);
118 E_md4hash((uchar *)passwd, nt_p16);
120 #ifdef DEBUG_PASSWORD
121 DEBUG(100,("nt_lm_owf_gen: pwd, nt#\n"));
122 dump_data(120, passwd, strlen(passwd));
123 dump_data(100, nt_p16, 16);
126 /* Mangle the passwords into Lanman format */
130 /* Calculate the SMB (lanman) hash functions of the password */
132 memset(p16, '\0', 16);
133 E_P16((uchar *) passwd, (uchar *)p16);
135 #ifdef DEBUG_PASSWORD
136 DEBUG(100,("nt_lm_owf_gen: pwd, lm#\n"));
137 dump_data(120, passwd, strlen(passwd));
138 dump_data(100, p16, 16);
140 /* clear out local copy of user's password (just being paranoid). */
141 bzero(passwd, sizeof(passwd));
144 /* Does the des encryption from the NT or LM MD4 hash. */
145 void SMBOWFencrypt(uchar passwd[16], uchar *c8, uchar p24[24])
151 memcpy(p21, passwd, 16);
155 /* Does the des encryption from the FIRST 8 BYTES of the NT or LM MD4 hash. */
156 void NTLMSSPOWFencrypt(uchar passwd[8], uchar *ntlmchalresp, uchar p24[24])
161 memcpy(p21, passwd, 8);
162 memset(p21 + 8, 0xbd, 8);
164 E_P24(p21, ntlmchalresp, p24);
168 /* Does the NT MD4 hash then des encryption. */
170 void SMBNTencrypt(uchar *passwd, uchar *c8, uchar *p24)
176 E_md4hash(passwd, p21);
177 SMBOWFencrypt(p21, c8, p24);
179 #ifdef DEBUG_PASSWORD
180 DEBUG(100,("SMBNTencrypt: nt#, challenge, response\n"));
181 dump_data(100, p21, 16);
182 dump_data(100, c8, 8);
183 dump_data(100, p24, 24);